Jiangsu Yangbiao Petroleum Machinery Co., Ltd. [China]

API 6A gate valve, non-rising stem, rising stem, welded, threade, d, union or colar connection end. casting/forging body.

API 6A gate valve:

   The designs are conformed to the latest API Spec.6A, and metal to metal seal is used between the body and the bonnet,metal seal or non-metal seal is used between the seat and the gate plate as needs. Back seal is set between the stem and the bonnet in order to replace the fill of the valve-stem when the valve bears pressure.The seal surface is welded with hard alloy of corrosion resistance and impact resistance.    For the parallel gate and the seat with preloaded spring, operation torque is little.    The wedge valve gate is sealed by wedge seal surface ,it can adjust fit compactness between the seal surfaces by loading with a handwheel.

Slab Gate valve