HOWO Truck Parts 4 Way Protection Valve

1. GENUINE ORIGINAL QUALITY 2. GOOD AFTER-SALES SERVICE 3.PROFESSIONAL AND STABLE PARTS SUPPLY 4. DELIVERY WITHIN 10 DAYS AFTER CONFIRM DETAILS Your are always welcome to visit our factory at any time Packing,Delivery Our Advantages (1)Competitive Factory Price and Excellent Quality (2)More than...

Product Details

Composition: brake valve is mainly composed of cavity piston, piston inferior vena, push rod, roller, balance spring, return spring (inferior vena), upper valve cavity, inferior vena valve, air inlet and air outlet, outlet, air vent.

Principle: when the driver on waste pedal down by stretching rod arm end spring balance, the balance arm down, first the exhaust valves are closed, open the inlet valve, the compressed air through the intake valve of air cylinder filling the brake chamber, pushing air chamber diaphragm to rotate the brake CAM so as to realize the wheel brake. Your are always welcome to visit our factory at any time

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