ASTM F1271-90(2012)
(Specification)Standard Specification for Spill Valves for Use in Marine Tank Liquid Overpressure Protections Applications
Standard Specification for Spill Valves for Use in Marine Tank Liquid Overpressure Protections Applications
ABSTRACT
This specification provides the minimum requirements for design, construction, performance, and testing of devices to prevent marine tank liquid overpressurization (hereafter called spill valves). Materials of construction shall be suitable for the service intended and resistant to the attack by the liquid carried in the tank being protected. Corrosion test, hydrostatic test, performance test, freeze test, vapor tightness test, seaworthiness test, and production test shall be performed to conform with the specified requirements.
SCOPE
1.1 This specification provides the minimum requirements for design, construction, performance, and testing of devices to prevent marine tank liquid overpressurization (hereafter called spill valves).
1.2 The spill valves provided in accordance with this specification will satisfy Regulation 1I-2/59.1.6 of the 1981 and 1983 Amendments to the International Convention for the Safety of Life at Sea, 1974 (SOLAS), which states: “Provision shall be made to guard against liquid rising in the venting system to a height which would exceed the design head of the cargo tank. This shall be accomplished by high level alarms or overflow control systems or other equivalent means, together with gaging devices and cargo tank filling procedures.''
1.3 The spill valves are not intended for the venting of vapors or the relief of vapor overpressurization or underpressurization of marine tanks.
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 precautionary 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.
General Information
Relations
Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:F1271 −90 (Reapproved 2012) An American National Standard
Standard Specification for
Spill Valves for Use in Marine Tank Liquid Overpressure
Protections Applications
This standard is issued under the fixed designation F1271; 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 F722Specification for Welded Joints for Shipboard Piping
Systems
1.1 This specification provides the minimum requirements
2.2 ANSI Standards:
fordesign,construction,performance,andtestingofdevicesto
B2.1Pipe Threads
prevent marine tank liquid overpressurization (hereafter called
B16.1Cast Iron Pipe Flanges and Flanged Fittings
spill valves).
B16.3Malleable Iron Threaded Fittings
1.2 The spill valves provided in accordance with this
B16.4Cast Iron Threaded Fittings
specification will satisfy Regulation 1I-2/59.1.6 of the 1981
B16.5 Steel Pipe Flanges and Flanged Fittings
and 1983Amendments to the International Convention for the
B16.11ForgedSteelFittings,Socket-WeldingandThreaded
Safety of Life at Sea, 1974 (SOLAS), which states: “Provision
B16.15Cast Bronze Threaded Fittings
shall be made to guard against liquid rising in the venting
B16.24Bronze Pipe Flanges and Flanged Fittings
system to a height which would exceed the design head of the
B31.1Power Piping
cargo tank.This shall be accomplished by high level alarms or
2.3 Other Documents:
overflow control systems or other equivalent means, together
ASME Boiler and Pressure Vessel Code, Section VIII,
with gaging devices and cargo tank filling procedures.’’
Division 1, PressureVessels; Section IX, Welding and
1.3 The spill valves are not intended for the venting of
Brazing Qualifications
vapors or the relief of vapor overpressurization or underpres-
Safety for Life at Sea Convention, Regulation II-2/
surization of marine tanks.
59.1.6,Amendments 1981 and 1983
46CFR 153 Ships Carrying Bulk Liquid, Liquified Gas, or
1.4 The values stated in inch-pound units are to be regarded
Compressed Gas Hazardous Materials
as the standard. The values given in parentheses are for
information only.
3. Terminology
1.5 The following precautionary caveat pertains only to the
3.1 Definitions:
test methods portion, Section 8, of this specification: This
3.1.1 spill valve—an independent device that automatically
standard does not purport to address all of the safety concerns,
prevents liquid overpressurization of a tank by relieving liquid
if any, associated with its use. It is the responsibility of the user
at a predetermined pressure set higher than the pressure
of this standard to establish appropriate safety and health
reached in the tank when the tank vapor relieving device
practices and determine the applicability of regulatory limita-
operates at its maximum design venting rate (based on a
tions prior to use.
volumetric vapor volume 1.25 times the maximum design
2. Referenced Documents loading rate).
2.1 ASTM Standards:
4. Ordering Information
B117Practice for Operating Salt Spray (Fog) Apparatus
4.1 Orders for spill valves in accordance with this specifi-
cation shall include the following information, as applicable:
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 from American National Standards Institute, 25 W. 43rd St., 4th
Current edition approved May 1, 2012. Published May 2012. Originally Floor, New York, NY 10036.
approved in 1989. Last previous edition approved in 2006 as F1271–90 (2006). Available from American Society of Mechanical Engineers (ASME), ASME
DOI: 10.1520/F1271-90R12. 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 AvailablefromU.S.GovernmentPrintingOfficeSuperintendentofDocuments,
Standards volume information, refer to the standard’s Document Summary page on 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http://
the ASTM website. www.access.gpo.gov.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1271−90 (2012)
4.1.1 Nominal pipe size and end connections, 6.4 All flat joints of the housing shall be machined true and
4.1.2 Product(s) in tank being protected by the spill valve, shall provide for a joint having adequate metal-to-metal
4.1.3 Inspection and tests other than specified by this contact.
specification,
6.5 Where welded construction is used, welded joint design
4.1.4 Required relieving pressure at maximum tank loading
details, welding, and nondestructive testing shall be in accor-
flow rate,
dance with Section VIII, Division 1 of the ASME Code and
4.1.5 Set (opening) pressure,
Specification F722. Welders and weld procedures shall be
4.1.6 Maximum tank design loading flow rate,
qualified in accordance with Section IX of the ASME Code.
4.1.7 Inlet pressure drop resulting from the maximum tank
6.6 The spill valve shall be fully operable at static inclina-
design loading flow rate,
tions up to 2 ⁄2 ° unless otherwise specified by the ordering
4.1.8 Back pressure of the spill valve discharge lines result-
information in Section 4.
ing from maximum tank design loading flow rate,
4.1.9 Purchaser’s inspection requirements (see 9.1), 6.7 Spillvalvesshallallowforefficientdrainageofmoisture
without impairing their proper operation.
4.1.10 Installation inclinations in excess of 2 ⁄2 ° (see 6.6),
4.1.11 Purchaser’s specifications for preventing the valve 6.7.1 Where the design does not permit complete drainage
from leaking due to cargo sloshing, and of condensate through its connection to the tank, the housing
4.1.12 Additional requirements or testing as contracted by shall be fitted with a plugged drain opening on the side of the
the manufacturer and the purchaser. atmospheric outlet of not less than nominal pipe size ⁄2 in. (12
mm).
5. Materials
6.8 Housing, elements, and seal gasket materials shall be
5.1 Materialsofconstructionshallbesuitablefortheservice
capable of withstanding the highest pressure and temperature
intended and resistant to the attack by the liquid carried in the
to which the spill valve may be exposed under normal
tank being protected (see 4.1.2). TableI of 46 CFR 153
conditions.
specifies materials that may not be used in components that
6.9 Spill valves shall be vapor tight at pressures below the
contact liquid or vapor of each hazardous liquid cargo.
rated liquid relieving pressure.
5.2 Housings of spill valves, and all other parts or bolting,
6.10 Fastenings essential to the operation of the spill valve
or both, used for pressure retention, shall be constructed of
shall be protected against loosening.
materialshavingasolidusmeltingpointofgreaterthan1700°F
(927°C)andbelistedinANSIB31.1orSectionVIII,Division
6.11 Spill valves shall be designed and constructed to
1 of the ASME Boiler and Pressure Vessel Code, except as minimize the effect of fouling under normal conditions.
noted in 5.5.
6.12 The spill valve shall not be provided with a means of
5.3 Corrosion-resistant materials shall be used for the fol- positive closure. In installations where cargo sloshing is
lowing: expected, the spill valve installation must be designed to
5.3.1 Housings, disks, spindles, and seats of valves. precludeprematureopeningofthevalveduetocargosloshing.
5.3.2 Springs that actuate disks of valves. Springs plated Also, the installation shall be designed so that it complies with
with corrosion-resistant material are not acceptable. applicable loadline and subdivision requirements.
5.4 Nonmetallic materials shall not be permitted except for 6.13 Spill valves shall be capable of operating in freezing
conditions.
gaskets, seals, bushings in way of moving parts, and valve
diaphragms.
6.14 Each of the free areas through the valve seat and
through the valve discharge at maximum lift shall not be less
5.5 Boltingmaterialsshallbeatleastequaltothoselistedin
than the cross-sectional area of the valve inlet connection.
Table1ofANSIB16.5.Bolts,screws,andfastenersincontact
with interior liquid shall be compatible with the liquid (see
6.15 Means shall be provided to check that any valve opens
4.1.2).
freely and does not remain lodged in the open position.
6. Other Requirements 6.16 Valve Disks:
6.16.1 Valve disks shall be guided by a ribbed cage or other
6.1 Pressure-retaining housings shall be designed to with-
2 2
suitable means to prevent binding and ensure proper seating.
standahydrostaticpressureofatleast125lb/in. (8.78kg/cm )
Wherevalvestemsareguidedbybushingssuitablydesignedto
without rupturing or showing permanent distortion.
prevent binding and to ensure proper seating, the valves need
6.2 Housing shall have suitable pipe connections for the
not be fitted with ribbed cages.
removal, maintenance, and testing of the spill valve.
6.16.2 Valve disks shall close tight against the valve seat by
6.2.1 Threaded or flanged pipe end connections shall com-
metal to metal contact; however, resilient
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.