Standard Specification for Fabricated (Welded) Pipe Line Strainers (Above 150 psig and 150&#176F)

ABSTRACT
This specification covers welded pipe line strainers for use in applications above 150 psig and 150 F as well as in marine environment conditions. Strainers covered in this specification are classified into simplex, duplex (or multiplex), and automatic (self-cleaning) based on general construction. However, other bases for further classifying strainers are available: pressure ratings and types of port connection, port alignments relative to unit center lines, cover closures, valve types (in duplex), types of baskets or elements, materials of construction, and other design features. Strainers shall be manufactured by casting or forging or fabricated from plates, tubes, or pipes, with inlet and outlet connections requiring welding joined by butt welding. On the other hand, strainers made of carbon or low alloy steel shall be post-weld heat treated. The strainers shall undergo either hydrostatic or air test, while the welds shall be examined visually or radiographically. All tests shall conform to the requirements specified.
SCOPE
1.1 This specification covers welded strainers in services above 150 psig or 150°F (1 MPa and 65°C). For welded strainers in services at or below these ratings and cast strainers, see Specification F1199.
1.2 This specification provides the minimum requirements for the design fabrication, rating, marking, and testing of welded pipe line strainers for services above 0°F (−18°C).
1.3 Strainers manufactured to this specification are acceptable for use in the marine environment.
1.4 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.5 The following safety hazards caveat pertains only to the test methods portion, Section 8, of this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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ASTM F1200-88(2010) - Standard Specification for Fabricated (Welded) Pipe Line Strainers (Above 150 psig and 150&#176F)
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F1200 −88(Reapproved 2010) An American National Standard
Standard Specification for
Fabricated (Welded) Pipe Line Strainers (Above 150 psig
and 150°F)
This standard is issued under the fixed designation F1200; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.2 ANSI Standards:
B2.1Pipe Threads
1.1 This specification covers welded strainers in services
B16.1Cast Iron Pipe Flanges and Flanged Fittings
above 150 psig or 150°F (1 MPa and 65°C). For welded
B16.3Malleable Iron Threaded Fittings
strainersinservicesatorbelowtheseratingsandcaststrainers,
B16.4Cast Iron Threaded Fittings
see Specification F1199.
B16.5Steel Pipe Flanges and Flanged Fittings
1.2 This specification provides the minimum requirements
B16.11 ForgedSteelFittings,Socket-WeldingandThreaded
for the design fabrication, rating, marking, and testing of
B16.15Cast Bronze Threaded Fittings
welded pipe line strainers for services above 0°F (−18°C).
B16.24Bronze Pipe Flanges and Flanged Fittings
B16.25Buttwelding Ends
1.3 Strainers manufactured to this specification are accept-
B31.1Power Piping
able for use in the marine environment.
2.3 MSS Standards:
1.4 The values stated in inch-pound units are to be regarded
SP-51150 lb Corrosion Resistant Cast Flanges and Flanged
as the standard. The values given in parentheses are for
Fittings
information only.
SP-63High Strength Wrought Welding Fittings
1.5 The following safety hazards caveat pertains only to the
2.4 ASME Standard:
test methods portion, Section 8, of this specification. This
ASME Boiler and Pressure Vessel Code: Section VIII,
standard does not purport to address all of the safety concerns,
Division 1, Pressure Vessels
if any, associated with its use. It is the responsibility of the user
ASME Boiler and Pressure Vessel Code:Section IX, Weld-
of this standard to establish appropriate safety and health
ing and Brazing Qualifications
practices and determine the applicability of regulatory limita-
tions prior to use.
3. Terminology
3.1 Definitions:
2. Referenced Documents
3.1.1 basket or element—the replaceable part in a strainer
that performs the barrier separation of solid particles from
2.1 ASTM Standards:
flowing fluid. It is normally removable for cleaning and
D93Test Methods for Flash Point by Pensky-Martens
servicing and can be furnished in a wide variety of materials,
Closed Cup Tester
particle size removal capability, straining area, and types of
F722Specification for Welded Joints for Shipboard Piping
construction.Interchangeablebasketsorelementsarenormally
Systems
available for a given make, model, and size strainer.
F1199Specification for Cast (All Temperatures and Pres-
sures) and Welded Pipe Line Strainers (150 psig and
3.1.2 maximum allowable working pressure (MAWP)—the
150°F Maximum)
highestinternalpressurethatthestrainercanbesubjectedtoin
service.Themaximumnonshockworkingpressureforwhicha
strainer is rated by the manufacturer.
This specification is under the jurisdiction ofASTM Committee F25 on Ships
and Marine Technology and is the direct responsibility of Subcommittee F25.11 on
Machinery and Piping Systems. Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
Current edition approved March 1, 2010. Published April 2010. Originally 4th Floor, New York, NY 10036, http://www.ansi.org.
approved in 1988. Last previous edition approved in 2004 as F1200–88(2004). Available from American Society of Mechanical Engineers (ASME), ASME
DOI: 10.1520/F1200-88R10. International Headquarters, Three Park Ave., New York, NY 10016-5990, http://
For referenced ASTM standards, visit the ASTM website, www.astm.org, or www.asme.org.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM AvailablefromManufacturersStandardizationSocietyoftheValveandFittings
Standards volume information, refer to the standard’s Document Summary page on Industry (MSS), 127 Park St., NE, Vienna, VA 22180-4602, http://www.mss-
the ASTM website. hq.com.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1200−88 (2010)
3.1.3 maximum design temperature—the maximum tem- 5.2 If a product is to be specified by performance criteria
perature (MAT) for which the strainer is rated by the manu- rather than model description, then the following should be
facturer. specified:
5.2.1 Maximum allowable clean pressure loss at a given
3.1.4 strainer—a device which, when installed in a pipe
flow capacity of a given liquid at a given viscosity.
line, provides a mechanical means of removing solids from a
5.2.2 Temperature and pressure.
flowing liquid or gas by using a barrier element.
5.2.3 Straining area.
3.1.5 straining open area—theneteffectiveopenareaofthe
5.2.4 Minimum basket rupture differential pressure (see
clean element through which the fluid can pass.
7.9).
5.2.5 Maximum valve seepage rates (see 7.8).
4. Classification
5.2.6 Certification (see 6.4, 8.1.2.1, and Section 9).
5.2.7 For self-cleaning strainers, specify basket cleaning
4.1 Strainers may be classified into three general construc-
tion categories, simplex, duplex (or multiplex), and automatic effectiveness and endurance testing.
(self-cleaning), as follows:
5.3 In general, the standard product description should not
4.1.1 Simplex—A strainer consisting of a single basket or
be mixed with the performance criteria because conflicting
element chamber that normally requires the flow through the
specifications can result (for example, maximum allowable
unit to be shut down before cleaning.
pressure loss inconsistent with product size).
4.1.1.1 Classifications of simplex strainers based on port
alignmentrelativetobasketorelementchamberare Y, T, Z,and
6. Materials and Manufacture
others.
6.1 Strainer housings, as well as any pressure-retaining
4.1.2 Duplex (or Multiplex)—A strainer usually consisting
parts, including bolting used for pressure retention, shall be
ofatleasttwobasketorelementchambersseparatedbyavalve
constructedofmaterialslistedinSectionVIII,Division1ofthe
(or valving) that permits continuous flow of fluid through one
ASME Boiler and Pressure Vessel Code (hereafter called
chamber while the other is accessible for cleaning.
ASME Code) orANSI/ASME B3.1. Bolts, screws, and fasten-
4.1.3 Automatic (Self-Cleaning)—Astrainerprovidingsome
ers in contact with interior fluid shall be of appropriate
means for back-flushing or cleaning of the straining element
corrosion-resistant material.
while the unit is in service. It can have one or more elements
6.2 The pressure ratings established under this specification
and may require periodic shutdown for maintenance and
are based on materials of high quality produced under regular
inspection.
control of chemical and mechanical properties by a recognized
4.2 Strainers may be further classified by pressure ratings
process. The manufacturer shall be prepared to submit a
and types of port connections, port alignments relative to unit
certificate of compliance verifying that his product has been
center lines, cover closures, valve types (in duplex), types of
manufactured from material whose chemical and mechanical
baskets or elements, materials of construction, and other
properties are at least equal to the requirements of an accept-
features of design.
able standard or specification.
6.3 For materials not having values of allowable stress
5. Ordering Information
tabulated in Section VIII, Division 1 of the ASME Code,
5.1 Ordersforproductsunderthisspecificationshallinclude
allowable stresses shall be determined in accordance with the
the following information as applicable. If a manufacturer’s
procedures outlined in Subsection C and Appendix P of that
standardized product is being ordered, include all data needed
section. Where it can be shown that the values of allowable
by the manufacturer to define the product.
stress listed for a particular material in one product form
5.1.1 Make.
(because of similar chemistry, mechanical properties, heat
5.1.2 Model (simplex or duplex). treatment, and so forth) are applicable to the same material in
an unlisted product form, the listed values of allowable stress
5.1.3 Port size.
may be used.
5.1.4 Port connections.
5.1.5 Maximum allowable working pressure/temperature
6.4 Seals and parts, other than pressure-retaining parts and
rating.
bolting used for pressure retention, shall be of materials
5.1.6 Body and cover material. suitable for the service.
5.1.7 Type of cover closure.
6.5 Users are cautioned against applications with fluids
5.1.8 Basket (element) material.
which may react chemically with any materials used in these
5.1.9 Basket hole size. products in contact with the fluid.
5.1.10 Optional design features.
7. Other Requirements
5.1.11 Certification (see 6.4, 8.1.2.1, and Section 9).
5.1.12 Nondestructive examination requirements (see 8.2).
7.1 The maximum allowable working pressu
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