Automatic Gate Valve

Valves may also be automatic driven by changes in pressure temperature or flow.

Automatic gate valve.

Gate valves with actuators use a threaded stem to connect the actuator to the gate via a drive nut around the threads allowing the nut to be turned with a hand wheel or motor. Catalog number description inside diameter laying length diameter a b c d e f n s. Examples of this type of valve found commonly are safety valves fitted to hot water systems or boilers. Pvc gate valves socket.

Pvc gate valves slip designed for quick shutoff in low pressure or vacuum lines these quick opening valves provide unrestricted flow for low pressure tank and drain applications with liquids gases dry bulk solids and slurry. They re often used for vacuum suction and release applications and intermediate cylinder stops. They can be disassembled for in line servicing. Gate valves are typically used to permit or prevent the flow of liquids and are not recommended for regulating flow.

These changes may act upon a diaphragm or a piston which in turn activates the valve. Also known as 3 3 valves these valves close all ports in the off position to stop equipment in a locked position with air pressure holding it in place.