Water pump

for chemicalsairself-priming

The vacuum pump is a key part of the priming system. Its function is to remove air and create a vacuum at the pump suction port while the centrifugal pump input shaft is rotating. The YONJOU Pump Priming System with is designed to allow the pump to prime without using a foot valve and without manually adding water to the system. lWater & waste water lConstruction & civil engineering lOil & Gas lMining lMarine lMunicipal lIndustrial Features: The vacuum pump drive system consists of a drive pulley on the main pump drive shaft, a rubber drive belt, and a drive pulley attached to the vacuum pump drive shaft. As viewed from its drive pulley, the vacuum pump rotates in a clockwise direction in order to evacuate air from the vacuum pump system. The air flow through the pump is through the inlet nozzle, passing the inlet valve, past the actuator valve at the center of the shaft, through the exhaust valve, and out the exhaust nozzle. With the pump drive pulley operating from the 12 o’clock position, the crankshaft force the piston in a upward direction. Increasing air pressure in upper chamber and opens the actuator valve. Air is allowed to flow into the down chamber of the pump casing (below the piston) until the drive pulley reaches the 6 o’clock position. From the 6 o’clock position, the piston rod and crank force the piston in an downward direction. Increasing air pressure in down chamber, opens the exhaust valve and forces the actuator valve closed. Air is then pushed out of the area below the piston and through the exhaust valve until the drive pulley again reaches the 12 o’clock position.