Non Rising Stem Gate Valve Animation

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Non rising stem gate valve animation.

Avk range of knife gate valves. Stainless steel stem and fixings. There is no upward movement of the stem in a non rising stem type. Rising stem resilient seated fusion bonded epoxy coated cast iron gate valve.

Non rising stems are threaded into the gate and rotate with the wedge rising and lowering inside the valve. Non rising stem gate valve or insider screw valve. You can see the image. They take up less vertical space since the stem is kept within the valve body.

Avk offers gate valves with a factory mounted indicator on the upper end of the stem to indicate the valve position. Epdm coated wedge for bubble tight seal. In this type of valve stem threads are exposed to the flow medium. The valve disk is threaded internally.

We offer knife gate valves with lever non rising stem and handwheel rising stem and handwheel pneumatic actuator iso top flange for actuator or complete with electric or pneumatic actuator. The disc travels along the stem like a nut when the stem is rotated. The protected sealings and high quality materials bring about a great performance and a long service life.