Segjärn PN 40 Fläns


The 6301S safety valve is dedicated to protect the equipment from potential overpressure. This is an automatic device that closes when the pressure conditions are back to normal. It is a spring type safety valve with displaced ports and instantaneous exhaust. It has a ductile iron construction. It is delivered sealed with a closed cover, a tight cap and a testing lever. The seat and clack undergo a hardening heat treatment that ensures a high resistance to erosion. It complies with the PN 40 pressure rating standards and is certified by a UDT and VERITAS approval. It can be used on steam, gas and liquids. Setting certificate and information folder, in compliance with the 1998 decree about the safety valves monitoring, are available on request.



EC1433 certification, category IV (modules B+D)
Full lift construction in compliance with VdTÜV-Merkblatt 100
Maximum flow rate at set pressure + 10 %
UDT approval 783/JN/013/07/Z
VERITAS approval 04592/ED BV for marine and offshore use


Max. allowable pressure (PS) PN 40

Testing pressure

60 bar
Allowable temperature (TS)  -10 °C / +350 °C


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