Product description

The valve stem nut of the fire-fighting dark-stem gate valve is set on the gate, and the rotation of the handwheel drives the rotation of the valve stem to lift the gate; usually there is a trapezoidal thread at the bottom end of the broad rod, which passes through the thread on the bottom end of the valve and the guide on the disc. Groove, the rotary motion becomes linear motion, that is, the operating torque becomes the operating thrust. Rotate the hand wheel, through the advance and retreat of the hand wheel and the rib of the valve stem, the valve plate linked with the valve stem is raised or lowered to achieve the purpose of opening and closing. The opening and closing part of the concealed stem gate valve is a gate, and the moving direction of the explanatory plate is perpendicular to the reverse of the fluid. The gate valve can only be fully opened and fully closed, and cannot be adjusted or throttled.

Main external connection size