Gate Valve

Gate valves are primarily designed for on-off services. They are best used in systems which require infrequent use of the valve. The gate valves are designed for full-area flow to minimize the pressure drop and allow the passage of a pipe-cleaning pig. Since most of the flow change occurs near the shutoff, the relatively high fluid velocity causes disk and seat wear and eventual leakage if the valve is used to regulate flow. OGV Gate valves are 100% tested before leave the factory with following features:

Flexible wedge with low center stem-wedge contact, in solid CA15 (13Cr) or hardfaced with 13Cr, SS 316, Monel or CoCr alloy. Wedge is ground and lapped to a mirror finish and tightly guided to prevent dragging and seat damage.

Non-rotating stem with precision Acme threads and burnished finish. Double Acme for faster operation.

Design & Manufacture Standard