Manual Cast Steel Dark Rod Gate Valve

Product Description

The manual cast steel dark rod gate valve is also called the rotary rod gate valve (also called the dark rod wedge gate valve). The stem nut is set on the gate plate, and the rotation of the hand wheel drives the valve stem to rotate, and the ram is lifted. Usually, the bottom end of the valve stem has a trapezoidal thread, and the rotation of the bottom end of the valve and the guide groove on the valve flap will rotate. It becomes a linear motion, that is, the operating torque is changed to the operating thrust.