Type test approved atmospheric discharge safety valves
for industrial applicationsSeries 412

Rueckruf EN

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High performance safety valves made of stainless steel, atmospheric discharge, with threaded connection

This high performance safety valve made of stainless steel is unique in its class. Its slim and elegant exterior conceals the highest level of precision and performance. At the same time, this valve can be ordered with a set pressure up to 40 bar. It is suitable for air and gases which can be freely discharged into the environment.

  • Examples of use
  • Approvals
  • Downloads

For the protection of:

  • pressure tanks and
  • pressure systems for air and other neutral, non-poisonous and non-flammable gases which can be freely discharged into the environment

Please observe plant-specific regulations and use of appropriate valve version and sealing material.

  • pneumatic control units
  • pressure booster plants air-side
  • waste water treatment plants
  • traffic- and railway technology
  • pneumatic braking systems
  • secondary areas in the food-, pharmaceutical- and cosmetics-industries

Safety valves are set and sealed at the factory.


TÜV-Type test approval 2003

Sec. VIII Div. 1

EU type examination

TSG ZF001-2006
D/G (S/G)


TR ZU 032/2013 - TR ZU 010/2011
D/G (S/G)



AD 2000 Data sheet A2
DIN EN ISO 4126-1
PED 2014/68/EU
KGS AA 319

Suitable for
Stainless steel
1/2" - 2"
- 60°C to + 225°C
(depending on version)
0,2 - 50 bar
(depending on version)
Data sheet/Capacity table