Connections
Female thread BSP-P / Female thread BSP-P • DIN EN ISO 228-1 / DIN EN ISO 228-1
Male thread NPT-m / Female thread NPT-f • ANSI B 1.20.1
Male thread BSP-P / Female thread BSP-P • DIN EN ISO 228-1 / DIN EN ISO 228-1
Male thread BSP-T / Female thread BSP-P • DIN EN 10226, ISO 7-1 / DIN EN ISO 228-1
Sizes
DN15 (½″) • DN20 (¾″) • DN25 (1″) • DN32 (1¼″) • DN32 (1½″) • DN32 (2″)
<strong>Pressure Range</strong>
0.5 to 70 bar*
<strong>Temperature Range</strong>
-60°C to 400°C*
* Dependent on version
TÜV • UKCA • ASME • CRN • EAC • TS • DNV • Lloyds • ABS • BV • RINA
These safety valves are particularly suitable for applications involving hydrogen. Thanks to the versatility of the 451 valve with optionally available back pressure compensating stainless steel bellows or lifting, this safety valve is in demand throughout the entire hydrogen value chain.
