TÜV/CE safety valves for heating and cooling
Series 652

Rueckruf EN

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Safety valves with diaphragm made of gunmetal, all-metal construction, angle type with threaded connections

The safety valve with diaphragm in the version 652mF-EPDM is especially designed for the protection of closed cooling circuits. This valve made of corrosion-resistant gunmetal with an all-metal construction is resistant for plants and cooling media with a glycol content of up to 100%. The unbeatable price/performance ratio makes these the standard valves stipulated in tenders for cooling and air-conditioning plants.

  • Examples of use
  • Approvals
  • Downloads

For the protection of:

  • cooling plants and closed cooling circuits
  • pressure tanks/-systems for water and cooling liquids with a glycol contents of up to 100 %

Please observe plant-specific regulations.

  • cooling-/ chilling plants


TÜV Type test approval 293

EC type examination

TR ZU 032/2013 - TR ZU 010/2011
L (F)

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

Suitable for
Potable water coldup to + 40°C
1/2" - 2"
- 50°C to + 150°C
1,0 - 16 bar
Data sheet/Capacity table