Plunger pump valve grinding
Information Source: http://seocai.com Time: 2016/9/30 16:23:06
The plunger valve is composed of valve body, valve cover, valve stem, plunger, hole frame, sealing ring, hand wheel and other parts. When the hand wheel rotates, the valve rod drives the plunger to reciprocate up and down in the middle of the hole frame to complete the valve opening and closing functions. An interference fit is used between the plunger and the sealing ring in the valve. By adjusting the flange bolts in the gland, the lateral force generated by the compression of the sealing ring is sealed with the hole surface in the valve body and the outer circle of the plunger, thereby ensuring the valve's Hermeticity prevents internal and external leakage, and at the same time, the valve opening torque is small, and the valve can be quickly opened and closed. Compared with globe valve, plunger valve has longer life and less labor. But the adjustment stroke is longer than the stop valve, so the throttle control is more difficult than the stop valve. Neither is suitable for places with clear requirements for regulation.