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BLOW-OFF VALVEA regulatory valve on the air system that allows the escape of excess air pressure if the governor on the air compressor fails to operate.
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2 |
BLOW-OFF VALVEa specially designed, manually operated, valve that connects to the boiler for the purpose of reducing the concentration of solids in the boiler or for draining purposes. (often called bottom blowdown.)
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3 |
BLOW-OFF VALVEvalve that bleeds off excessive boost pressure when the throttle is closed (like between shifts) by dumping air from the intake
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