This document specifies:
a)   field of application;
b)   requirements for in line anti-vacuum valves;
c)   dimensional, the physico-chemical properties and the properties of general hydraulic, mechanical and acoustic design of in-line anti-vacuum valves DN 10 to DN 50;
d)   test method and requirements for verifying these properties;
e)   marking and presentation;
f)   acoustics.
This document specifies the characteristics of in-line anti-vacuum valves DN 10 to DN 50 that are suitable for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h at 90 °C.

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This document specifies the general requirements for metallic check valves, which are forged, cast or fabricated in straight, angle or oblique pattern (see EN 736‐2) with end connections flanged or wafer, butt welding, socket welding, or threaded.
This document applies to metallic check valves used for all industrial applications.
Additional requirements given in the relevant application standards may apply to check valves used for more specific applications (e.g. for the water industry, the chemical and petrochemical process industry, the gas distribution industry).
Sanitary check valves and back flow prevention anti-pollution check valves are excluded from the scope of this document.
The range of nominal sizes covered is:
-   DN 8, DN 10; DN 12, DN 15; DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600; DN 700; DN 750; DN 800; DN 900; DN 1 000; DN 1 200.
DN 8 and DN 12 are not used for PN designated flanged end connections.
DN 8, DN 10 and DN 12 are not used for Class designated flanged end connections.
DN 750 is used for Class designated check valves only.
Socket welding end check valves and threaded end check valves are limited to the range DN 8 to DN 65.
The range of pressure designations covered is:
a)   for flanged end and wafer type end cast iron bodies:
-   PN 2,5; PN 6; PN 10; PN 16; PN 25;
-   Class 125; Class 250;
b)   for flanged end, wafer type and butt welding end bodies in steel or copper alloy materials:
-   PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40; PN 63; PN 100; PN 160; PN 250; PN 320; PN 400;
-   Class 150; Class 300; Class 600; Class 900 ; Class 1 500; Class 2 500;
c)   for socket welding end and threaded end bodies in steel or copper alloy materials:
-   PN 40; PN 63; PN 100;
-   Class 600; Class 800.
NOTE   Class 800 is a widely used Class designation for socket welding and threaded end check valves.
The correspondence between DN and NPS is given for information in Annex B.

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This document specifies the general requirements for metallic check valves, which are forged, cast or fabricated in straight, angle or oblique pattern (see EN 736‐2) with end connections flanged or wafer, butt welding, socket welding, or threaded.
This document applies to metallic check valves used for all industrial applications.
Additional requirements given in the relevant application standards may apply to check valves used for more specific applications (e.g. for the water industry, the chemical and petrochemical process industry, the gas distribution industry).
Sanitary check valves and back flow prevention anti-pollution check valves are excluded from the scope of this document.
NOTE 1   Double disc type and tilting disc type are also based on butterfly valve and are in the scope of this document.
The range of nominal sizes covered is:
-   DN 8, DN 10; DN 12, DN 15; DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600; DN 700; DN 750; DN 800; DN 900; DN 1 000; DN 1 200.
DN 8 and DN 12 are not used for PN designated flanged end connections.
DN 8, DN 10 and DN 12 are not used for Class designated flanged end connections.
DN 750 is used for Class designated check valves only.
Socket welding end check valves and threaded end check valves are limited to the range DN 8 to DN 65.
The range of nominal diameters for capillary and compression end valves is 6 mm to 110 mm.
The range of pressure designations covered is:
a)   for flanged end and wafer type end cast iron bodies:
-   PN 2,5; PN 6; PN 10; PN 16; PN 25;
-   Class 125; Class 250;
b)   for flanged end, wafer type and butt welding end bodies in steel materials:
-   PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40; PN 63; PN 100; PN 160; PN 250; PN 320; PN 400;
-   Class 150; Class 300; Class 600; Class 900; Class 1 500; Class 2 500;
c)   for socket welding end and threaded end bodies in steel materials:
-   PN 40; PN 63; PN 100;
-   Class 600; Class 800.
NOTE 2   Class 800 is a widely used Class designation for socket welding and threaded end check valves.
d)   for flanged end and wafer type bodies in copper alloy materials:
-   PN 2,5; PN 6; PN 10; PN 16; PN 25; PN 40;
-   Class 150; Class 300;
e)   for threaded end, capillary end and compression end bodies in copper alloy materials:
-   PN 16; PN 20; PN 25; PN 32; PN 40;
-   Class 125; Class 250.
The correspondence between DN and NPS is given for information in Annex B.

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ISO 19240:2017 specifies requirements for design, dimensions, material, fabrication and production testing of lined metal quarter turns valves (plug valves, butterfly valves, ball valves) and check valves with flanged, wafer and wafer lug body types. It covers valves of the nominal sizes, DN: - 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600, 700, 750, 800, 900, 1 000, 1 200; corresponding to nominal pipe sizes, NPS 1/2 to NPS 48, and applies to pressure designations: - PN 10, 16, 25, 40; - Class 150, 300.

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EN 16447 describes the general requirements for flap valves used for dust explosion isolation. An explosion isolation flap valve is a protective system, which prevents a dust explosion from propagating via connecting pipes or ducts into other parts of apparatus or plant areas. An explosion isolation flap valve can only stop the propagation of a dust explosion when it propagates against the direction of the normal process flow. It does not stop explosions running in the normal process flow direction. This European Standard specifies methods for evaluating the efficacy of explosion isolation flap valves. This European Standard is applicable only to explosion isolation flap valves which are intended to avoid explosion propagation from a vessel, into other parts of the installation via connecting pipes or ducts. The standard covers isolation of such vessels that are protected by explosion venting (including flameless venting), explosion suppression or explosion resistant design.

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This European Standard describes the general requirements for flap valves used for dust explosion isolation. An explosion isolation flap valve is a protective system, which prevents a dust explosion from propagating via connecting pipes or ducts into other parts of apparatus or plant areas.
An explosion isolation flap valve can only stop the propagation of a dust explosion when it propagates against the direction of the normal process flow. It does not stop explosions running in the normal process flow direction. This European Standard specifies methods for evaluating the efficacy of explosion isolation flap valves.
This European Standard is applicable only to the use of explosion isolation flap valves that are intended for avoiding explosion propagation from a vessel, into other parts of the installation via connecting pipes or ducts. The standard covers isolation of such vessels that are protected by explosion venting (including flameless venting), explosion suppression or explosion resistant design.
NOTE 1   The standard assumes that the explosion starts in a vessel and not in ducting.
Explosion isolation flap valves are not designed to prevent the transmission of fire or burning powder transported by the normal process flow.
NOTE 2   It is necessary to take this into account in risk assessments.
This European Standard is only applicable for dust explosions.
This European Standard is not applicable for explosions of materials listed below, or for mixtures containing some of those materials:
a)   gases, vapours and hybrid mixtures;
b)   chemically unstable substances;
c)   explosive substances;
d)   pyrotechnic substances.

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This European Standard specifies the requirements for steel globe and globe stop and check valves which are wrought, cast or fabricated in straight, angle or oblique pattern with end connections flanged, butt welding, socket welding or threaded.
This standard is applicable to steel globe and globe stop and check valves mainly used for industrial and general purpose applications. However, they can be used for other applications provided the requirements of the relevant performance standards are met.
The range of nominal sizes covered is:
DN 8; DN 10; DN 12; DN 15; DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400.
DN 8 and DN 12 are not used for PN designated flanged end connections.
DN 8, DN 10 and DN 12 are not used for Class designated flanged end connections.
Socket welding end valves and threaded end valves are limited to the range DN 8 to DN 65.
The range of pressure designations covered is:
a) for flanged and butt welding end valves:
- PN 10; PN 16; PN 25; PN 40; PN 63; PN 100;
- Class 150; Class 300; Class 600.
b) for socket welding end valves and threaded end valves:
- PN 40; PN 63; PN 100;
- Class 600; Class 800.
NOTE Class 800 is a Class designation widely used for socket welding and threaded end valves.

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This European Standard specifies the requirements for steel globe and globe stop and check valves which are wrought, cast or fabricated in straight, angle or oblique pattern with end connections flanged, butt welding, socket welding or threaded.
This standard is applicable to steel globe and globe stop and check valves mainly used for industrial and general purpose applications. However, they can be used for other applications provided the requirements of the relevant performance standards are met.
The range of nominal sizes covered is:
DN 8; DN 10; DN 12; DN 15; DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400.
DN 8 and DN 12 are not used for PN designated flanged end connections.
DN 8, DN 10 and DN 12 are not used for Class designated flanged end connections.
Socket welding end valves and threaded end valves are limited to the range DN 8 to DN 65.
The range of pressure designations covered is:
a)   for flanged and butt welding end valves:
-   PN 10; PN 16; PN 25; PN 40; PN 63; PN 100;
-   Class 150; Class 300; Class 600.
b)   for socket welding end valves and threaded end valves:
-   PN 40; PN 63; PN 100;
-   Class 600; Class 800.
NOTE   Class 800 is a Class designation widely used for socket welding and threaded end valves.

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This document specifies the field of application, the dimensional, the physico-chemical, the design, the hydraulic, the mechanical, and the acoustic characteristics of in-line anti vacuum valve family D Type A.
This document covers in-line anti vacuum valve family D Type A, intended to prevent pollution of potable water by backflow, caused by backsiphoning only.
It is applicable to in-line anti vacuum valve in denominations DN 10 up to DN 50.
It covers in-line anti vacuum valve of PN 10 that are capable of working without modification or adjustment:
-   at any pressure, up to 1 MPa (10 bar);
-   with any pressure variation, up to 1 MPa (10 bar);
-   in permanent duty at a limited temperature of 65 °C and for maximum 1 h at 90 °C.
It specifies also the test methods and requirements for verifying their characteristics, the marking and the presentation at delivery.

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This European Standard specifies requirements and tests for check valves of thermoplastics materials with the function to allow the flow of liquid fluids through the valve in one direction only and to prevent backflow.
This standard is applicable to check valves to be installed in industrial pipe systems, irrespective of the field of application and the liquid fluids to be conveyed. For other and/or special applications special requirements may apply.
The range of DN is:
DN 8, DN 10, DN 15, DN 20, DN 25, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125, DN 150, DN 200, DN 250, DN 300, DN 350, DN 400, DN 500 und DN 600.
The range of PN and Class is:
PN 4, PN 6, PN 10, PN 16, PN 25, Class 150 und Class 300.
The requirements specified by this standard concern the design, functional characteristics and manufacture of diaphragm valves, their connection to the pipe system, the body materials and their pressure/temperature rating between - 40 °C up to + 120 °C, for a lifetime of 25 years.

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This Technical Report gives guidance in support of Directives adopted by the European Union in the Food Contact Materials Sector and is intended to aid Food Control Authorities and industry enforce and comply with those Directives.

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ISO 16137:2006 specifies requirements for the design, functional characteristics and manufacture of check valves made of thermoplastics materials intended to allow the flow of liquid fluids through the valve in one direction only and to prevent backflow, their connection to the pipe system, the body materials and their pressure/temperature rating between -40 degrees Celsius and + 120 degrees Celsius, for a lifetime of 25 years, and also specifies their tests.
ISO 16137:2006 is applicable to valves to be installed in industrial pipe systems, irrespective of the field of application and the fluids to be conveyed.
It is concerned with the range of DN 8, DN 10, DN 15, DN 20, DN 25, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125, DN 150, DN 200, DN 250, DN 300, DN 350, DN 400, DN 500 and DN 600, and the range of PN 6, PN 10, PN 16, PN 25, and Class 150 and Class 300.

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ISO 16137:2006 specifies requirements for the design, functional characteristics and manufacture of check valves made of thermoplastics materials intended to allow the flow of liquid fluids through the valve in one direction only and to prevent backflow, their connection to the pipe system, the body materials and their pressure/temperature rating between -40 degrees Celsius and + 120 degrees Celsius, for a lifetime of 25 years, and also specifies their tests. ISO 16137:2006 is applicable to valves to be installed in industrial pipe systems, irrespective of the field of application and the fluids to be conveyed. It is concerned with the range of DN 8, DN 10, DN 15, DN 20, DN 25, DN 40, DN 50, DN 65, DN 80, DN 100, DN 125, DN 150, DN 200, DN 250, DN 300, DN 350, DN 400, DN 500 and DN 600, and the range of PN 6, PN 10, PN 16, PN 25, and Class 150 and Class 300.

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This document specifies:
a)   field of application;
b)   requirements for pipe interrupters with atmospheric vent and moving element;
c)   dimensional and the physico-chemical properties, and the properties of general hydraulic, mechanical and acoustic design of pipe interrupters with elastic membrane of DN 10 to  DN 20;
d)   test procedure and requirements for verifying these properties;
e)   marking and presentation;
f)   acoustics.
This document specifies the characteristics of pipe interrupters with atmospheric vent and moving element, DN 10 to DN 20 that are suitable for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h at 90 °C.

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This document specifies:
a)   field of application;
b)   requirements for pipe interrupters with permanent atmospheric vent;
c)   dimensional, the physico-chemical properties and the properties of general hydraulic, mechanical and acoustic design of pipe interrupters with permanent atmospheric vent, DN 10 to DN 20;
d)   test method and requirements for verifying these properties;
e)   marking and presentation;
f)   acoustics.
This document specifies the characteristics of pipe interrupters with permanent atmospheric vent, DN 10 to DN 20 that are suitable for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h 90 °C.
Backflow protection devices integrated in flushing valves are similar to DC and are not covered under this document. The requirements are stated in EN 12541.
This document specifies:
a)   field of application;
b)   requirements for pipe interrupters with permanent atmospheric vent;
c)   dimensional, the physico-chemical properties and the properties of general hydraulic, mechanical and acoustic design of pipe interrupters with permanent atmospheric vent, DN 10 to DN 20;
d)   test method and requirements for verifying these properties;
e)   marking and presentation;
f)   acoustics.
This document specifies the characteristics of pipe interrupters with permanent atmospheric vent, DN 10 to DN 20 that are suitable for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h 90 °C.
Backflow protection devices integrated in flushing valves are similar to DC and are not covered under this document. The requirements are stated in EN 12541.

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This document specifies:
a)   field of application;
b)   requirements for pipe interrupters with permanent atmospheric vent;
c)   dimensional, the physico-chemical properties and the properties of general hydraulic, mechanical and acoustic design of pipe interrupters with permanent atmospheric vent, DN 10 to DN 20;
d)   test method and requirements for verifying these properties;
e)   marking and presentation;
f)   acoustics.
This document specifies the characteristics of pipe interrupters with permanent atmospheric vent, DN 10 to DN 20 that are suitable for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h 90 °C.
Backflow protection devices integrated in flushing valves are similar to DC and are not covered under this document. The requirements are stated in EN 12541.
This document specifies:
a)   field of application;
b)   requirements for pipe interrupters with permanent atmospheric vent;
c)   dimensional, the physico-chemical properties and the properties of general hydraulic, mechanical and acoustic design of pipe interrupters with permanent atmospheric vent, DN 10 to DN 20;
d)   test method and requirements for verifying these properties;
e)   marking and presentation;
f)   acoustics.
This document specifies the characteristics of pipe interrupters with permanent atmospheric vent, DN 10 to DN 20 that are suitable for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h 90 °C.
Backflow protection devices integrated in flushing valves are similar to DC and are not covered under this document. The requirements are stated in EN 12541.

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This document specifies:
a)   field of application;
b)   requirements for pipe interrupters with atmospheric vent and moving element;
c)   dimensional and the physico-chemical properties, and the properties of general hydraulic, mechanical and acoustic design of pipe interrupters with elastic membrane of DN 10 to  DN 20;
d)   test procedure and requirements for verifying these properties;
e)   marking and presentation;
f)   acoustics.
This document specifies the characteristics of pipe interrupters with atmospheric vent and moving element, DN 10 to DN 20 that are suitable for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h at 90 °C.

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The purpose of this European Standard is to specify:
-   field of application of Anti-pollution Check Valves;
-   backflow prevention properties, dimensional and physio-chemical properties, and properties of general hydraulic, mechanical and acoustic design to which Anti-pollution Check Valves of nominal sizes DN 6 to DN 250 inclusive shall conform;
-   Family E, type A, controllable Anti-pollution Check Valve (with test port);
-   Family E, type B, non-controllable Anti-pollution Check Valve, including Cartridge Check Valve;
-   Family E, type C, controllable Anti-pollution Double Check Valve (with test ports);
-   Family E, type D, non-controllable Anti-pollution Double Check Valve, including Cartridge Double Check Valve;
-   test procedures and requirements for verifying the backflow protection properties of stop valves, draw-off taps etc. which incorporate a check valve function. Stop valves, draw off taps etc, need also to comply with a recognised standard;
-   marking;
-   presentation at delivery.
This standard specifies the characteristics of Anti-pollution Check Valves of DN 6 up to and including DN 250 that are suitable for use in drinking water systems. For application feasibility see Table 1.
Table 1 - Nominal size vs Conditions of use
Nominalsize(DN)   Max. Operatingtemperature   Max. Operating pressure   Installation
DN <= 50                   65 °C + 90 °C, 1 hour   1 000 kPa (10 bar)                   Any position
DN > 50                   65 °C                                   1 000 kPa (10 bar)                   Horizontal only
Anti-pollution Check Valves covered by this standard are of Pressure Class PN 10.
The field of application of EN 1717 is limited to 10 bar, flanges could be drilled in PN 16 pattern.
Anti-pollution Check Valves of PN 16 shall satisfy the requirements of standard EN 13959 and comply with tests which characterise the PN of the device.

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The purpose of this European Standard is to specify:
-   field of application of Anti-pollution Check Valves;
-   backflow prevention properties, dimensional and physio-chemical properties, and properties of general hydraulic, mechanical and acoustic design to which Anti-pollution Check Valves of nominal sizes DN 6 to DN 250 inclusive shall conform;
-   Family E, type A, controllable Anti-pollution Check Valve (with test port);
-   Family E, type B, non-controllable Anti-pollution Check Valve, including Cartridge Check Valve;
-   Family E, type C, controllable Anti-pollution Double Check Valve (with test ports);
-   Family E, type D, non-controllable Anti-pollution Double Check Valve, including Cartridge Double Check Valve;
-   test procedures and requirements for verifying the backflow protection properties of stop valves, draw-off taps etc. which incorporate a check valve function. Stop valves, draw off taps etc, need also to comply with a recognised standard;
-   marking;
-   presentation at delivery.
This standard specifies the characteristics of Anti-pollution Check Valves of DN 6 up to and including DN 250 that are suitable for use in drinking water systems. For application feasibility see Table 1.
Table 1 - Nominal size vs Conditions of use
Nominalsize(DN)   Max. Operatingtemperature   Max. Operating pressure   Installation
DN <= 50                   65 °C + 90 °C, 1 hour   1 000 kPa (10 bar)                   Any position
DN > 50                   65 °C                                   1 000 kPa (10 bar)                   Horizontal only
Anti-pollution Check Valves covered by this standard are of Pressure Class PN 10.
The field of application of EN 1717 is limited to 10 bar, flanges could be drilled in PN 16 pattern.
Anti-pollution Check Valves of PN 16 shall satisfy the requirements of standard EN 13959 and comply with tests which characterise the PN of the device.

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This European Standard defines the minimum fitness for purpose requirements for check valves to be used in, or connected to, water supply pipe systems, above orbelow ground (see prEN 805:1996), carrying water intended for human consumption.This standard specifies the design requirements, the performance requirements and the conformity assessment method for check valves, whatever their type and materials. This standard applies in priority to any product or test standard: the requirements from other standards apply only when this standard refers to them.

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This European Standard defines the minimum fitness for purpose requirements for check valves to be used in, or connected to, water supply pipe systems, above orbelow ground (see prEN 805:1996), carrying water intended for human consumption.This standard specifies the design requirements, the performance requirements and the conformity assessment method for check valves, whatever their type and materials. This standard applies in priority to any product or test standard: the requirements from other standards apply only when this standard refers to them.

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This document specifies, the dimensional, the physical-chemical, the design, the hydraulic, the mechanical and the acoustic characteristics of mechanical disconnectors flow actuated Family G, type B.
This document is applicable to mechanical disconnectors flow actuated in nominal sizes DN 8 up to DN 250, intended to prevent the return of water having lost its original sanitary and drinking qualities (called “polluted water” in this document), into the potable water distribution system whenever the pressure of the latter is temporarily lower than in the polluted circuit.
This document covers the mechanical disconnector of PN 10 that are capable of working without modification or adjustment:
- at any pressure up to 1,0 MPa (10 bar);
- in permanent duty at a limit temperature of 65 °C and 90 °C for 1 h maximum.
It specifies also the test methods and requirements for verifying these characteristics, the marking and the presentation at delivery.

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This document specifies the dimensional, physical-chemical, design, hydraulic, mechanical and acoustic characteristics of mechanical disconnectors, direct actuated Family G, type A.
This document is applicable to mechanical disconnectors in nominal sizes DN 8 up to DN 250, intended to prevent the return of water having lost its original sanitary and drinking qualities (called “polluted water” in this document), into the potable water distribution system whenever the pressure of the latter is temporarily lower than in the polluted circuit.
This document covers the mechanical disconnector of PN 10 that are capable of working without modification or adjustment:
- at any pressure up to 1,0 MPa (10 bar);
- with any pressure variation up to 1,0 MPa (10 bar);
- in permanent duty at a limit temperature of 65 °C and 90 °C for 1 h maximum.
It specifies also the test methods and requirements for verifying these characteristics, the marking and the presentation at delivery.

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This document specifies, the dimensional, the physical-chemical, the design, the hydraulic, the mechanical and the acoustic characteristics of mechanical disconnectors flow actuated Family G, type B.
This document is applicable to mechanical disconnectors flow actuated in nominal sizes DN 8 up to DN 250, intended to prevent the return of water having lost its original sanitary and drinking qualities (called “polluted water” in this document), into the potable water distribution system whenever the pressure of the latter is temporarily lower than in the polluted circuit.
This document covers the mechanical disconnector of PN 10 that are capable of working without modification or adjustment:
- at any pressure up to 1,0 MPa (10 bar);
- in permanent duty at a limit temperature of 65 °C and 90 °C for 1 h maximum.
It specifies also the test methods and requirements for verifying these characteristics, the marking and the presentation at delivery.

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This document specifies the dimensional, physical-chemical, design, hydraulic, mechanical and acoustic characteristics of mechanical disconnectors, direct actuated Family G, type A.
This document is applicable to mechanical disconnectors in nominal sizes DN 8 up to DN 250, intended to prevent the return of water having lost its original sanitary and drinking qualities (called “polluted water” in this document), into the potable water distribution system whenever the pressure of the latter is temporarily lower than in the polluted circuit.
This document covers the mechanical disconnector of PN 10 that are capable of working without modification or adjustment:
- at any pressure up to 1,0 MPa (10 bar);
- with any pressure variation up to 1,0 MPa (10 bar);
- in permanent duty at a limit temperature of 65 °C and 90 °C for 1 h maximum.
It specifies also the test methods and requirements for verifying these characteristics, the marking and the presentation at delivery.

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This document specifies:
a)   field of application;
b)   requirements for in line anti-vacuum valves;
c)   dimensional, the physico-chemical properties and the properties of general hydraulic, mechanical and acoustic design of in-line anti-vacuum valves DN 8 to DN 80;
d)   test method and requirements for verifying these properties;
e)   marking and presentation;
f)   acoustics.
This document specifies the characteristics of in-line anti-vacuum valves DN 8 to DN 80 that are suitable for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h at 90 °C.

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This European Standard specifies the requirements for cast iron or steel check valves, which are forged, cast or fabricated in straight, angle or oblique pattern (see EN 736-2) with end connections flanged or wafer, butt welding, socket welding, or threaded.
This European standard applies to check valves mainly used for industrial and general purpose applications. However, they may be used for other applications provided the requirements of the relevant performance standards are met.
Back flow prevention anti-pollution check valves are outside the scope of this European standard.
The range of nominal sizes covered is:
   DN 8, DN 10; DN 12, DN 15; DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600; DN 700; DN 750; DN 800; DN 900; DN 1000.
DN 8 and DN 12 are not used for PN designated flanged end connections.
DN 8, DN 10 and DN 12 are not used for Class designated flanged end connections.
DN 750 is used for Class designated valves only.
Socket welding end valves and threaded end valves are limited to the range DN 8 to DN 65.
The range of pressure designations covered is:
a)   for flanged end and wafer type end cast iron bodies:
   PN 2,5; PN 6; PN 10; PN 16; PN 25;
   Class 125; Class 250;
b)   for flanged end, wafer type and butt welding end steel bodies:
   PN 40; PN 63; PN 100;
   Class 150; Class 300; Class 600;
c)   for socket welding end steel bodies and threaded end steel bodies:
   PN 40; PN 63; PN 100;
   Class 600; Class 800.
NOTE   Class 800 is a widely used Class designation for socket welding and threaded end valves.

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This European Standard specifies the requirements for cast iron or steel check valves, which are forged, cast or fabricated in straight, angle or oblique pattern (see EN 736-2) with end connections flanged or wafer, butt welding, socket welding, or threaded.
This European standard applies to check valves mainly used for industrial and general purpose applications. However, they may be used for other applications provided the requirements of the relevant performance standards are met.
Back flow prevention anti-pollution check valves are outside the scope of this European standard.
The range of nominal sizes covered is:
DN 8, DN 10; DN 12, DN 15; DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600; DN 700; DN 750; DN 800; DN 900; DN 1000.
DN 8 and DN 12 are not used for PN designated flanged end connections.
DN 8, DN 10 and DN 12 are not used for Class designated flanged end connections.
DN 750 is used for Class designated valves only.
Socket welding end valves and threaded end valves are limited to the range DN 8 to DN 65.
The range of pressure designations covered is:
a)   for flanged end and wafer type end cast iron bodies:
-   PN 2,5; PN 6; PN 10; PN 16; PN 25;
-   Class 125; Class 250;
b)   for flanged end, wafer type and butt welding end steel bodies:
-   PN 40; PN 63; PN 100;
-   Class 150; Class 300; Class 600;
c)   for socket welding end steel bodies and threaded end steel bodies:
-   PN 40; PN 63; PN 100;
-   Class 600; Class 800.
NOTE   Class 800 is a widely used Class designation for socket welding and threaded end valves.

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This European Standard specifies the requirements for steel check valves, which are forged, cast or fabricated in straight, angle or oblique pattern (see EN 736 2) with end connections flanged or wafer, butt welding, socket welding, or threaded.
This standard is applicable to steel check valves mainly used for industrial and general purpose applications. However, they can be used for other applications provided the requirements of the relevant performance standards are met.
Back flow prevention anti-pollution check valves are outside the scope of this standard.
The range of nominal sizes covered is:
   DN 8; DN 10; DN 12; DN 15; DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600; DN 700; DN 750; DN 800; DN 900; DN 1000.
DN 750 is used for Class designated valves only.
DN 8 and DN 12 are not used for PN designated flanged end connections.
DN 8, DN 10 and DN 12 are not used for Class designated flanged end connections.
Socket welding end valves and threaded end valves are limited to the range DN 8 to DN 65.
The range of pressure designations covered is:
a)   for flanged end, wafer type and butt welding end valves:
PN 10; PN 16; PN 25; PN 40; PN 63; PN 100;
Class 150; Class 300; Class 600.
b)   for socket welding end valves and threaded end valves:
PN 40; PN 63; PN 100;
Class 600; Class 800.
NOTE   Class 800 is a Class designation widely used for socket welding and threaded end valves.

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This European Standard specifies requirements for cast iron check valves having flanged end connections or wafer type bofy, with either metallic or resilient seating, in nominal sizes DN40 to DN1000 and nominal pressure ratings PN6 to PN40, Class 125, and Class 250 and in pivoting, linear, diaphragm or ball type.

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This European Standard specifies requirements for cast iron check valves having flanged end connections or wafer type bofy, with either metallic or resilient seating, in nominal sizes DN40 to DN1000 and nominal pressure ratings PN6 to PN40, Class 125, and Class 250 and in pivoting, linear, diaphragm or ball type.

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This European Standard specifies requirements for cast iron check valves having flanged end connections or wafer type bofy, with either metallic or resilient seating, in nominal sizes DN40 to DN1000 and nominal pressure ratings PN6 to PN40, Class 125, and Class 250 and in pivoting, linear, diaphragm or ball type.

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This European Standard specifies the requirements for steel check valves, which are forged, cast or fabricated in straight, angle or oblique pattern (see EN 736 2) with end connections flanged or wafer, butt welding, socket welding, or threaded.
This standard is applicable to steel check valves mainly used for industrial and general purpose applications. However, they can be used for other applications provided the requirements of the relevant performance standards are met.
Back flow prevention anti-pollution check valves are outside the scope of this standard.
The range of nominal sizes covered is:
   DN 8; DN 10; DN 12; DN 15; DN 20; DN 25; DN 32; DN 40; DN 50; DN 65; DN 80; DN 100; DN 125; DN 150; DN 200; DN 250; DN 300; DN 350; DN 400; DN 450; DN 500; DN 600; DN 700; DN 750; DN 800; DN 900; DN 1000.
DN 750 is used for Class designated valves only.
DN 8 and DN 12 are not used for PN designated flanged end connections.
DN 8, DN 10 and DN 12 are not used for Class designated flanged end connections.
Socket welding end valves and threaded end valves are limited to the range DN 8 to DN 65.
The range of pressure designations covered is:
a)   for flanged end, wafer type and butt welding end valves:
PN 10; PN 16; PN 25; PN 40; PN 63; PN 100;
Class 150; Class 300; Class 600.
b)   for socket welding end valves and threaded end valves:
PN 40; PN 63; PN 100;
Class 600; Class 800.
NOTE   Class 800 is a Class designation widely used for socket welding and threaded end valves.

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This European Standard specifies requirements for cast iron check valves having flanged end connections or wafer type bofy, with either metallic or resilient seating, in nominal sizes DN40 to DN1000 and nominal pressure ratings PN6 to PN40, Class 125, and Class 250 and in pivoting, linear, diaphragm or ball type.

  • Amendment
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This European Standard specifies requirements for cast iron check valves having flanged end connections or wafer type bofy, with either metallic or resilient seating, in nominal sizes DN40 to DN1000 and nominal pressure ratings PN6 to PN40, Class 125, and Class 250 and in pivoting, linear, diaphragm or ball type.

  • Corrigendum
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This European Standard specifies requirements for cast iron check valves having flanged end connections or wafer type bofy, with either metallic or resilient seating, in nominal sizes DN40 to DN1000 and nominal pressure ratings PN6 to PN40, Class 125, and Class 250 and in pivoting, linear, diaphragm or ball type.

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This European Standard specifies, the dimensional, the physico-chemical, the design, the hydraulic, the mechanical and the acoustic characteristics of mechanical disconnector, hydraulic actuated Family G, type B.
This European Standard is applicable to mechanical disconnectors hydraulic actuated in nominal sizes DN 8 up to DN 250 included, intended to prevent the return of water having lost its original sanitary and drinking qualities (called "polluted water" in this European Standard), into the potable water distribution system when-ever the pressure of the latter is temporarily lower than in the polluted circuit.
This European Standard covers the mechanical disconnectors hydraulic actuated of PN 10 that are capable of working without modification or adjustment:
-   at any pressure up to 1 MPa (10 bar);
-   with any pressure variation up to 1 MPa (10 bar);
-   in permanent duty at a limit temperature of 65 °C and 90 °C for 1 h maximum.
It specifies also the test methods and requirements for verifying these characteristics, the marking and the presentation at delivery.

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This European Standard specifies, the dimensional, the physico-chemical, the design, the hydraulic, the mechanical and the acoustic characteristics of mechanical disconnector, direct actuated Family G, type A.
This European Standard is applicable to mechanical disconnector direct actuated in nominal sizes DN 8 up to DN 250 included, intended to prevent the return of water having lost its original sanitary and drinking qualities (called "polluted water" in this European Standard), into the potable water distribution system whenever the pressure of the latter is temporarily lower than in the polluted circuit.
This European Standard covers the mechanical disconnector direct actuated of PN 10 that are capable of working without modification or adjustment:
-   at any pressure up to 1 MPa (10 bar);
-   with any pressure variation up to 1 MPa (10 bar);
-   in permanent duty at a limit temperature of 65 °C and 90 °C for 1 h maximum.
It specifies also the test methods and requirements for verifying these characteristics, the marking and the presentation at delivery.

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This European Standard specifies, the dimensional, the physico-chemical, the design, the hydraulic, the mechanical and the acoustic characteristics of mechanical disconnector, direct actuated Family G, type A.
This European Standard is applicable to mechanical disconnector direct actuated in nominal sizes DN 8 up to DN 250 included, intended to prevent the return of water having lost its original sanitary and drinking qualities (called "polluted water" in this European Standard), into the potable water distribution system whenever the pressure of the latter is temporarily lower than in the polluted circuit.
This European Standard covers the mechanical disconnector direct actuated of PN 10 that are capable of working without modification or adjustment:
-   at any pressure up to 1 MPa (10 bar);
-   with any pressure variation up to 1 MPa (10 bar);
-   in permanent duty at a limit temperature of 65 °C and 90 °C for 1 h maximum.
It specifies also the test methods and requirements for verifying these characteristics, the marking and the presentation at delivery.

  • Standard
    28 pages
    English language
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    e-Library read for
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This European Standard specifies, the dimensional, the physico-chemical, the design, the hydraulic, the mechanical and the acoustic characteristics of mechanical disconnector, hydraulic actuated Family G, type B.
This European Standard is applicable to mechanical disconnectors hydraulic actuated in nominal sizes DN 8 up to DN 250 included, intended to prevent the return of water having lost its original sanitary and drinking qualities (called "polluted water" in this European Standard), into the potable water distribution system when-ever the pressure of the latter is temporarily lower than in the polluted circuit.
This European Standard covers the mechanical disconnectors hydraulic actuated of PN 10 that are capable of working without modification or adjustment:
-   at any pressure up to 1 MPa (10 bar);
-   with any pressure variation up to 1 MPa (10 bar);
-   in permanent duty at a limit temperature of 65 °C and 90 °C for 1 h maximum.
It specifies also the test methods and requirements for verifying these characteristics, the marking and the presentation at delivery.

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This European Standard specifies the requirements for steel globe and globe stop and check valves which are wrought, cast or fabricated in straight, angle or oblique pattern with end connections flanged, butt welding, socket welding or threaded. This standard is applicable to steel globe and globe stop and check valves mainly used for industrial and general purpose applications. However they can be used for other applications provided the requirements of the relevant performance standards are met.

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This European Standard specifies the requirements for steel globe and globe stop and check valves which are wrought, cast or fabricated in straight, angle or oblique pattern with end connections flanged, butt welding, socket welding or threaded. This standard is applicable to steel globe and globe stop and check valves mainly used for industrial and general purpose applications. However they can be used for other applications provided the requirements of the relevant performance standards are met.

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This document specifies:
a)   field of application;
b)   requirements for in line anti-vacuum valves;
c)   dimensional, the physico-chemical properties and the properties of general hydraulic, mechanical and acoustic design of in-line anti-vacuum valves DN 8 to DN 80;
d)   test method and requirements for verifying these properties;
e)   marking and presentation;
f)   acoustics.
This document specifies the characteristics of in-line anti-vacuum valves DN 8 to DN 80 that are suitable for use in drinking water systems at pressures up to 1 MPa (10 bar) and temperatures up to 65 °C and for 1 h at 90 °C.

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