Type test approved safety valves angle-type
for industrial applicationsSeries 461

Rueckruf EN

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Safety valves made of stainless steel, angle-type with threaded connections

The consequential expansion of the valve series 451 with smaller nominal diameters now allows the best and therefore most efficient design of safety valves with smaller discharge volumes.
The proven versatility in different variations leads to use for a variety of media with different aggregate conditions. The possibilities for use are in medical process equipment construction and in the food, beverage, pharmaceutical and cosmetics industries in secondary areas.

  • Examples of use
  • Approvals
  • Downloads

For the protection of:

  • pressure tanks and -systems for neutral / non-neutral vapours, gases and liquids
  • steam boilers and steam plants

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

  • chemical plants, biogas plants
  • desalination plants
  • process equipment construction and medical technology
  • shipbuilding industry and marine equipment
  • secondary areas in the food-, beverage-, pharmaceutical- and cosmetics-industries
  • offshore-applications

Safety valves are set and sealed at the factory.


TÜV-Type test approval 2061
D/G , F

EC type examination
S/G , L

TSG ZF001-2006
D/G (S/G), F (L)

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



AD 2000 Data sheet A2
TRD 421
DIN EN ISO 4126-1
PED 2014/68/EU
KGS AA 319

Suitable for
Liquidsneutral and non-neutral
Air, gases and vapoursneutral and non-neutral
Stainless steel
1/4" - 1/2"
-60°C to + 225°C
(depending on version)
0,5 - 70 bar
Data sheet/Capacity table