Forced-operated valves
Reliable control at 0 bar
and high flow rates.
The operating principle: The best of both worlds
Force-operated solenoid valves combine the advantages of direct and servo-controlled designs.
The piston or diaphragm is firmly coupled to the solenoid armature, enabling reliable switching from 0 bar. At higher pressures, the actuator is additionally supported by the pressure of the medium.
This makes them extremely flexible all-rounders.
24
2/2 way solenoid valve with piston
• Flange connection
• DN 15 - 50
• Valve closed in rest position (NC).
• Flow medium:
Neutral, gaseous and liquid media
27
2/2 way solenoid valve with diaphragm
• Flange connection
• DN 15 - 50
• Valve closed in rest position (NC).
• Flow medium:
Neutral, gaseous and liquid media
43
2/2 way solenoid valve with diaphragm
• Valve closed in rest position (NC).
• G 1/4" - G 2", DIN ISO 228
• Flow medium:
Neutral, gaseous and liquid media
49
2/2 way solenoid valve with piston
• Valve closed in rest position (NC).
• G 1/4" - G 2", DIN ISO 228
• Flow medium:
Neutral, gaseous and liquid media
L153
2/2 way solenoid valve with diaphragm
• Valve closed in rest position (NC).
• G 1/2" - G 3/4", DIN ISO 228
• Flow medium: steam
85720 / 84983
2/2 way solenoid valve with piston
• Closing damper
• Valve closed in rest position (NC).
• G 1/4" - G 2", DIN ISO 228
• Flow medium:
hot water and steam
Technical details and areas of application
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To help you make an informed choice, you will find an overview of the key features of forced-operated valves here.
Advantages:​
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Maximum flexibility: The valves operate reliably over a wide pressure range, from 0 bar to maximum pressure.
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Suitable for large flow rates: Unlike directly operated valves, they can also switch large nominal diameters safely.
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Stable control: Ideal for systems with unclear or highly fluctuating pressure conditions.
Disadvantages:
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Larger solenoid actuators: Since the magnet must open the valve on its own in an emergency, stronger and larger coils are often required.
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More complex design: The coupling of armature and membrane can make maintenance more complex compared to simpler designs.
Typical applications
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Closed circuits: Perfect for heating or cooling circuits where pressure can vary greatly.
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Systems with fluctuating inlet pressure: Wherever a stable minimum pressure difference cannot be guaranteed.
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Safety-relevant applications: Where reliable closing must be guaranteed even in the event of a pressure drop.
Maintenance and installation
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Position-independent installation: Like directly operated valves, forced-operated valves can usually be installed in any position.
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Regular inspection: Due to the more complex mechanics, regular inspection is recommended.
"Maximum flexibility – positively driven solenoid valves
for maximum control under varying pressure conditions."
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