Pressure relief valve
A pressure relief valve for use in variable flow heating and cooling systems, the PM 512 features a soft NBR diaphragm that delivers a long lifetime and is also equipped with an auxiliary spring that operates as a fail-safe open function. Designed for easy handling in tight spaces. Electrophoretically painted ductile iron body for optimum rust protection.
Inline flow allows high pressure drops without noise.
Allows adjustable set-point from 0 to 16 bar.
Heating and cooling systems with variable flow.
Inline pressure relief valve with pneumatic spring.
Opens at increasing inlet pressure.
PN 25 or PN 16 (DN 100-125)
Max. differential pressure (ΔpV):
1 600 kPa = 16 bar
Max. working temperature: 100°C
Min. working temperature: -10°C
Water and neutral fluids, water-glycol mixtures.
Valve body: Ductile iron EN-GJS-400
Diaphragms and gaskets: NBR, EPDM
TA, DN, PN, Kvs, material and flow direction arrow.
DN 15-50 (optional): According to EN-1092-2:1997, type 16.
DN 65-125: According to EN-1092-2:1997, type 21.
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