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Safety Relief Valve
JSV-FF31/32/41/51
(Conventional Full Bore Type)


It is used as a relief for pumps and safety relief valves in large capacity steam boilers, various pressurized containers and gauging devices.

This product has been designed according to the KS B 6216 specifications for safety valves used for steam and gas. The structure is simple and easy to maintain. The spring has been manufactured within the range of the maximum effective stress of the material to ensure operation. It has received certification from the Occupational Safety and Health Agency and Korea Gas Safety Corporation. For leakages, the standard of API STD 527 applies.

Product specification
Model Format Applicable
liquids
Correct
temperature
to be
applied( ¡ÆC)
Correct
pressure
to be
applied
Mpa
(kgf/cm©÷)
How to
connect
the item
Material Cover/Lever
format
Main body Key part Cover Spring
JSV-FF41 Certified
by the
Occupational
Safety
and
Health Agency
Full
bore type
Steam
Gas
Liquid
-44~400 2.2~3.3
(22.0~33.0)
JIS,ASME,
ISO,DIN
Flanged
Cast Steel
Stainless
Steel
Stainless
Steel
Cast Steel
Stainless
Steel
Stainless
Steel
CN
CL
PL
OL
JSV-FF51 3.3~5.0
(33.0~50.0)
Cast Steel
Stainless
Steel
Cast Steel
Stainless
Steel
JSV-FF31 Inspected
by the
Korea Gas
Safety Corporation
Gas
Liquid
-29~400 2.2~5.0
(22.0~50.0)
Cast Steel Cast Steel CN
PL
JSV-FF32 -196~400 Stainless
Steel
Stainless
Steel
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