This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.
Si 4302
High flow safety valves
Process and steam safety valves to PED and DIN/EN standards.
The state-of-the-art IMI Bopp & Reuther medium-pressure safety valve.
- Cost-effective semi nozzle body design with seat bushing.
- Developed in modular design with other series.
- Reliable function with ideal capacity.
- Inner parts made from stainless steel (except for spring and spring washer).


Product Specifications


Inlet sizes
- DN 20 to DN 200
Inlet pressure rating
- PN 10 to PN 40
Set pressures
- 0.1 bar”g to 40 bar”g
Temperature range
- -270°C to +450°C
Overpressure
- Vapours / gases: 5%
- Liquids: 10%
Blowdown
- Vapours / gases: 10%
- Liquids: 20%
Allowable built-up back pressure without bellows
- 20% of the set pressure
Downloads
Let IMI Critical find the right solution for your application