PM 512
Pressure relief valve
A pressure relief valve for use in variable flow heating and cooling systems, the PM 512 features a soft NBR membrane 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.
Product branding
Features and Benefits
Inline design
Inline flow allows high pressure drops without noise.
Pneumatic spring
Allows adjustable set-point from 0 to 16 bar.
Applications
Heating and cooling systems.
Functions
Inline pressure relief valve with pneumatic spring.
Opens at increasing inlet pressure.
Pressure class [PN]
PN 16 or PN 25 (DN 100-125)
Differential pressure (ΔpV)
Max. differential pressure (ΔpV): 1 600 kPa = 16 bar
Setting range
0-16 bar
Temperature
Max. working temperature: 100°C
Min. working temperature: -10°C
Media
Water or neutral fluids, water-glycol mixtures (0-57%).
Marking
Connection
DN 65-125: Flanges according to EN-1092-2, type 21.
DN 15-50: External threads according to ISO 228.
Material
Valve body: Ductile iron EN-GJS-400-15
Membranes and gaskets: NBR, EPDM
Surface treatment
Electrophoretic painting.
The table below assists you in finding the relevant product based on its variant. For more details, please download the datasheet above.
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