ASTM F1567-94(2001)
(Specification)Standard Specification for Fabricated or Cast Automatic Self-Cleaning, Fuel Oil and Lubricating Oil Strainers
Standard Specification for Fabricated or Cast Automatic Self-Cleaning, Fuel Oil and Lubricating Oil Strainers
SCOPE
1.1 This specification covers automatic or continuously self-cleaning automatic strainers, or both, for use in fuel and lubrication oil systems. The strainer is designed to operate under positive pressure (discharge side of the pump). Strainers manufactured to this specification are suitable for use in any marine environment.
1.2 It is not the intent of this document to redefine existing filtration standards. The intent is to provide sound guidelines for purchasers and designers of lube oil and fuel oil systems. Nominal micron requirements and filter efficiencies shall be as agreed upon by the purchaser and manufacturer and stated in the purchase order document.
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An American National Standard
Designation: F 1567 – 94 (Reapproved 2001)
Standard Specification for
Fabricated or Cast Automatic Self-Cleaning, Fuel Oil and
Lubricating Oil Strainers
This standard is issued under the fixed designation F 1567; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope B16.5 Steel Pipe Flanges and Flanged Fittings (Including
Ratings for Class 150, 300, 400, 600, 900, 1500, and
1.1 This specification covers automatic or continuously
2500)
self-cleaning automatic strainers, or both, for use in fuel and
B16.42 Ductile Iron Pipe Flanges and Flanged Fittings
lubrication oil systems. The strainer is designed to operate
Class 150 and 300
under positive pressure (discharge side of the pump). Strainers
Y14.5 Dimensioning and Tolerancing
manufactured to this specification are suitable for use in any
2.3 American Welding Society Standard:
marine environment.
AWS D1.3 Structural Welding Code
1.2 It is not the intent of this document to redefine existing
2.4 MSS Standards:
filtration standards. The intent is to provide sound guidelines
SP25 Standard Marking Systems for Valves and Fittings
for purchasers and designers of lube oil and fuel oil systems.
SP55 Quality Standards for Valve, Flanges and Fittings and
Nominal micron requirements and filter efficiencies shall be as
Other Piping Components (Visual Method)
agreed upon by the purchaser and manufacturer and stated in
2.5 Federal Specification:
the purchase order document.
PPP-F-320 Fiberboard: Corrugate and Solid Sheet Stock
2. Referenced Documents
(Container Grade) and Cut Shapes
2.6 Military Specifications:
2.1 ASTM Standards:
MIL-P-116 Preservation, Methods of
D 3951 Practice for Commercial Packaging
MIL-B-121 Barrier Material, Greaseproofed, Water
F 795 Practice for Determining the Performance of a Filter
Proofed, Flexible
Medium Employing a Single-Pass, Constant-Rate, Liquid
MIL-S-901 Shock Tests, H.I. (High Impact): Shipboard
Test
Machinery, Equipment and Systems, Requirements for
F 1199 Specification for Cast (All Temperatures And Pres-
MIL-P-15024 Plates, Tags and Bands for Identification of
sures)andWeldedPipeLineStrainers(150psigAnd150°F
Equipment
Maximum
MIL-P-15024/5 Plates, Identification
F 1200 Specification for Fabricated (Welded) Pipe Line
2.7 Military Standards:
Strainers (Above 150 psig and 150°F)
MIL-STD-167-1 Mechanical Vibrations of Shipboard
2.2 ASME/ANSI Standards:
Equipment(TypeI—EnvironmentalandTypeIIInternally
ASME Boiler and Pressure Vessel Code: Section VIII
Induced)
Division 1,Pressure Vessels
MIL-STD-740 Airborne and Structureborne Noise Mea-
ASME Boiler and Pressure Vessel Code: Section IX,
surement and Acceptance Criteria of Shipboard Equip-
Welding and Brazing Procedures
ment
This specification is under the jurisdiction of ASTM Committee F25 on Ships
and Marine Technology and is the direct responsibility of Subcommittee F25.11 on Available from American Welding Society, 550 N.W. LeJune Rd., Miami, FL
Machinery and Piping Systems. 33126.
Current edition approved Nov. 15, 1994. Published January 1995. AvailablefromManufacture’sStandardizationSocietyoftheValveandFittings
Annual Book of ASTM Standards, Vol 15.09. Industry, 1815 N. Fort Myer Dr., Arlington, VA 22209.
3 8
Annual Book of ASTM Standards, Vol 14.04. Available from Superintendent of Documents, U.S. Government Printing
Annual Book of ASTM Standards, Vol 01.07. Office, Washington, DC 20402.
5 9
Available from the American Society of Mechanical Engineers, Headquarters, AvailablefromStandardizationDocumentsOrderDesk,Bldg.4SectionD,700
Three Park Ave., New York, NY 10016–5990. Robbins Ave., Philadelphia, PA 19111-5094, Attn: NPODS.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F 1567 – 94 (2001)
MIL-STD-2073-1 Material Procedures for Development 6.2 Components—Each strainer assembly shall consist of a
and Application of Packaging Requirements housing with a removable cover, inlet and outlet connections,
filter/straining element(s), self-cleaning mechanism(s), con-
3. Terminology
trols, and a differential pressure gauge. The strainer unit shall
have suitable supports. The cross-sectional flow area through-
3.1 Definitions of Terms Specific to This Standard:
out the unit shall be equal to or greater than that of the piping
3.1.1 filter, or straining element—the replaceable compo-
to which the strainer is connected.
nent in a strainer that performs the barrier separation of solid
6.2.1 Housing—The strainer housing, cover, flanges, and
particles from flowing fluid. It shall be removable for cleaning
other items which form the pressure boundary shall conform to
and servicing.
the requirements of the ASME Boiler and Pressure Vessel
3.1.2 maximum allowable working pressure (MAWP)—the
Code: Section VIII, Division 1, Pressure Vessels. Cast grey
highest internal pressure that the strainer can be subjected to in
iron pressure retaining components shall not be used. Units
service. The maximum non-shock working pressure for which
requiring ASME stamp shall have it specified in the purchase
a strainer is rated by the manufacturer on its nameplate.
agreement. The dirty oil inlet shall be located at the lower part
3.1.3 maximum design temperature—the maximum tem-
of the body and arranged to help prevent contamination of the
perature for which a strainer is rated by the manufacturer.
clean outlet side of the strainer during disassembly.
3.1.4 strainer—adevicewhich,wheninstalledinapipeline,
provides a mechanical means of removing suspended solids 6.2.2 Cover—The removable cover shall be secured to the
housing by threaded fasteners. Removal of the cover shall
from flowing liquid.
3.1.5 Straining element open area. The net effective open provide access to all internal components and shall not require
unbolting the inlet and outlet strainer piping connections.
area of the clean element through which the fluid can pass.
Cover lifting devices with integral supports or lifting eyes shall
4. Classification be required for covers weighing more than 30 lb.
6.2.2.1 Antispray feature—The strainer cover shall contain
4.1 Strainers shall be furnished as Type I fuel oil or Type II
a device to deflect fluid spray downward in the event of gasket
lubricating oil. The strainers may be either hydraulic, electric,
failure. The spray deflector shall remain in position at all times
or pneumatic operated.
when the cover is connected to the housing.
6.2.3 Gasket—The gasket or o-ring shall be capable of
5. Ordering Information
providing a positive seal under service and test conditions.The
5.1 Ordersforstrainersunderthisspecificationshallinclude
gasket shall be installed between the cover and strainer
the following:
housing. This gasket shall be in place during the hydrostatic
5.1.1 This specification number,
pressure test.
5.1.2 Operating and design requirements for flow rate,
6.2.4 Pipe and Flange Dimensions—The inlet and outlet
pressure, temperature, nominal micron rating, fluid type, and
flanges shall be sized and drilled to conform withANSI B16.5,
viscosity.ASME Section VIII Division 1 Code Stamp require-
Class 150 or 300, or as specified in the ordering data (see 5.1.3
ments.
and ANSI B 16.42).
5.1.3 Flanged end connections class and type drilling, that
6.2.5 Element Support—The filter element support shall not
is, ANSI, DIN, and so forth.
permanently deform when the assembly of the filter element
5.1.4 Orientation of inlet and outlet connections (see 6.2.9).
andelementsupportissubjectedtothestrengthofinternalstest
5.1.5 Repair spare parts package (see 14.1).
(see 9.3.3). The element support shall be designed to facilitate
5.1.6 Quality criteria and test plan requirements.
easy removal of the filter element and element support as one
5.1.7 Additionaltestorsupplementaryrequirements(thatis,
assembly. The element support must satisfy the flow area
ship motions and attitude constraints, see 7.3 and S1).
requirements of 6.2.6.
5.1.8 Strainer element open area if greater than require-
6.2.6 Filter Element—The filter element may be furnished
ments in 6.2.6.
in any corrosion resistant material compatible with the fluid in
5.1.9 Any special seal requirements.
5.1.10 Any special control requirements, that is, differential service. The filter element shall be attached to the element
support in such a manner that it can be easily removed and
pressure gages, valves, control panels, motors and so forth.
5.1.11 Certified drawing requirements showing mainte- replaced from the element support. The straining element open
area shall be at least two to four times larger than the area of
nance envelope and mounting details.
the strainer discharge connection.
6. Materials and Manufacture
6.2.7 Motor—The self-cleaning action of each unit shall be
operated by a motor included as a part of the strainer. This
6.1 The strainer shall be designed to remove contaminating
motor can be hydraulic, electric or pneumatic.
or unwanted solid particles, or both, from fuel oil and lube oil.
6.2.7.1 Hydraulic motor—A motor exhaust connection
The self-cleaning action shall be automatic, and shall have the
sized to meet the strainer hydraulic motor shall be provided.
ability to backwash, when required, the filtered fluid through
This motor exhaust connection shall also be suitable for
the filter element in segments such that the contaminating
venting air during the initial fill and pressurization.
particlesareflushedfreeofthefilterelement.Theself-cleaning
action of each unit shall be driven by a motor (electric, 6.2.7.2 Electric motor—Electric motors shall be fractional
pneumatic, or hydraulic.) horsepower, TEFC, NEMA design B, with a continuous rated
F 1567 – 94 (2001)
1.15 service factor or equivalent. Voltage, phase and cycle pressure drop below this value when contaminated fluid is
rating shall be stated in the purchase document. being pumped through the strainer at the design flow specified
in 5.1.2.
6.2.7.3 Pneumatic motor—Design type shall be agreed
upon between the purchaser and manufacturer.
8. Workmanship
6.2.8 Backflush Structure—The backflush structure shall
8.1 Workmanship—The strainer and its components shall be
periodically or continuously clean all of the filter element by
free from blow holes, porosity, hard spots, shrinkage defects
backflushing system fluid through the element. The structure
and cracks. All surfaces shall be smooth and clean (reference
shallcleanthefilterelementinsegmentssoasnottodisruptthe
MSS SP55). Where dimensions and tolerances affect inter-
system flow through the strainer at any time. All impurities
changeability, operation, or performance or any combination
separated shall be isolated from the filtered liquid and dis-
thereof, they shall be held.
charged. All shaft penetrations shall require seals suitable for
8.2 Cleaning—The strainer shall be cleaned of all extrane-
oil service.
ous material and dried.
6.2.9 Connections—The inlet and outlet connections shall
be flanged. The inlet and outlet shall be permanently marked
9. Tests
and identified.
9.1 Each strainer will have standard hydrostatic tests per-
6.2.9.1 Drain connections shall be provided. These connec-
formed in accordance with Specifications F 1199 or F 1200
tions shall be furnished with caps or plugs.
whicheverisapplicable.Whenspecifiedaspartofthepurchase
6.2.9.2 The unit shall have a suitable means of removing
agreement, a detailed test plan may be submitted for approval.
sludge from the strainer when it is isolated from service or
The performance, prototype and operational tests listed herein,
during normal operation.
shall be performed to prove the design. All strainers produced
6.2.10 Lifting Attachments—Each housing and the cover
under this specification will meet these minimum require-
shall be provided with suitable sling attachment areas for
ments. Proof of test qualification shall be provided when
lifting in a normal position. If lifting eyes are used, each eye
specified in the purchase agreement.
shall have the capability to carry the total weight.
9.2 Test Extensions—When the following conditions are
6.2.11 Mounting—Free standing strainers shall be mounted
satisfied, extension of a product test of one size to qualify
by feet attached to the housing. Each foot must be provided
another size is permitted (see Table 1):
with a suitable hole to accommodate one hold-down bolt.
9.2.1 Similar geometry and design characteristics.
6.3 Welding—Welding for nonpressure-boundary compo-
9.2.2 Similar or stronger material than the tested unit.
nents shall be in accordance with theAWS Structural Welding
9.2.3 Same pressure rating.
Code. Welding for pressure boundary components shall be in
9.2.4 Similar or stronger end connections.
accordance with the ASME Boiler and Pressure Vessel Code.
9.2.5 Similar sealing configurations.
6.4 Treatment and Painting—The exterior of the strainer
9.2.6 Same mode of operation and operator attachment.
shall be treated and painted in accordance with standard
9.3 Operational Tests:
commercial practice.
9.3.1 Flow Capacity Test—The test shall be performed in
6.5 Material—Ductile iron, bronze, carbon steel, and stain-
general accordance with Practice F 795. The pressure drop at
less steel materials used in the fabrication of the automatic
the rated flow shall not exceed 0.07 MPa (10 psi) with a fluid
self-cleaning strainer shall not affect nor be affected by
viscosity of 250 SSU.
petroleum products. Materials shall be in accordance with
9.3.2 Inclined Flow Capacity Test—The flow capacity test
ASTM or ASME specifications. Dissimilar metal connections
in 9.3.1 will be performed at a list and trim angle of 30°.
shall be designed to provide optimum corrosion protection.
9.3.3 Strength of Internals Test:
6.6 Seals—Strainer seals shall be elastomers suitable for
The filter elements shall be proven to withstand a minimum
this service.
pressure differential of ten times the rated clean pressure
differential or ⁄3 of the maximum allowable working pressure
7. Operating Requirements
(MAWP) of the housing, whichever is greater. The increased
differential pressure shall be held or maintained for 30 min.
7.1 Pressure—The strainer shall be suitable for operation in
The strainer assembly will then be disassembled and inspected.
the range of 0.21 to 1.03 MPa (30 to 150 psi).
7.2 Temperature—The strainer shall be suitable for opera-
A
tion between 15 to 120°C (60 to 250°F) unless otherwise
TABLE 1 Test Extensions
specified in the ordering data (see 5
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