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StainlessSteelReliefValve0 pages
Bestobell
nnnnCryogenic Valves
nnnnStainless Steel Relief Valve
nnnnDN10-DN15-DN20
nnnnDescription
nnnnA range of high quality relief valves designed to comply with ISO 4126 ("Safety
nnnnValves General Requirement"), Ad-Merkblatt A2 ("Safety Devices Against Excess
nnnnPressure"), TUV and Stoomwesen requirements. They are eminently suited
nnnnto the protection of static and road going cryogenic storage tanks against
nnnndamaging over pressure.
nnnnThere are three basic sizes, defined by the throat diameter, and each is available
nnnnwith a variety of inlet and outlet connections.
nnnnThe valve is designed and factory set to lift repeatedly within 2% of the set
nnnnpressure, and to reseat above, 92% of set pressure. Spring pre compression and
nnnnblow down ring settings are sealed after test to inhibit unauthorised tampering.
nnnnFlowrates at 10% above set pressure are measured to ensure compliance with
nnnnstated flow capabilities.
nnnnMaximum Working Pressure (MWP)
nnnn(Subject to end connections and material)
nnnn40barat -196"C to +65"C
nnnnFeatures
nnnnA lift-limiting stop helps prevent valve instability when discharging from or
nnnninto the lengthy piping runs that can be characteristic of cryogenic systems,
nnnnthough good piping practice should still be observed when installing these
nnnnvalves.
nnnnEach valve is individually set and flow tested and then stamped with the date
nnnnof manufacture and its own unique serial number prior to despatch. All valves
nnnnare degreased for oxygen duty, assembled in clean room conditions, and
nnnnsealed in robust polythene bags prior to despatch.
nnnnT+44(0) 114 224 0000
nnnnF+44(0) 114 2784974
nnnnsales@bestobellvalves.com
nnnnwww.bestobellvalves.com
nnnnBestobell, President Park, President Way, Sheffield, S4 7UR
nnnnUnited Kingdom
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