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80 Bled Steam Check Valve – Options<br />
Power Closing<br />
Where power assistance or ‘power closing’ is required an<br />
Air to open and Spring or Spring + air to close<br />
Pneumatic cylinder can easily be accommodated whilst<br />
still maintaining the Automatic Gravity Closing feature.<br />
Power assisted valves can close in less than half a second<br />
but is dependent on size and pressure.<br />
Typical Schematic and Wiring Diagram<br />
This is a basic diagram, however, other arrangements can be<br />
supplied to suit specific requirements.<br />
Typical Wiring Diagram<br />
Supply<br />
Typical Schematic Diagram<br />
Air<br />
supply<br />
Turbine<br />
trip<br />
High water<br />
level<br />
Closed<br />
limit switch<br />
Test<br />
P.B.<br />
Turbine<br />
trip<br />
Filter/Regulator<br />
Turbine<br />
Solenoid<br />
Closed<br />
indicator lamp<br />
Solenoid<br />
operated<br />
control<br />
valve<br />
Quick<br />
Exhaust<br />
Valve<br />
High water<br />
level<br />
Heater
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