Cast Steel Flanged Ball Valve With Gearbox

16-inch Class 300 Cast Steel Trunnion Ball Valve (Flanged, Worm-Gear Operated)

This large-bore trunnion-mounted ball valve is engineered for mainline oil, gas, and process pipeline service where reliable isolation and low operating torque are critical at large sizes and elevated pressures. The fixed ball is supported on upper and lower trunnions, directing line pressure into the body bearings rather than the seats, which reduces operating torque, extends seat life, and ensures tight bidirectional shut-off on 16-inch Class 300 service.

The valve features a two-piece cast WCB body with raised-face flanged ends drilled to ASME B16.5, a full-bore flow path compatible with pigging, and a side-mounted worm-gear operator with a large handwheel for easy manual operation. Standard features include spring-loaded self-relieving seats, blow-out proof stem, anti-static device, seat grease injection fittings, body drain and vent connections, and fire-safe seat design. The bare-metal body can be coated to customer specification.

Every valve is fully tested per API 598, including shell, high-pressure seat, and low-pressure gas seat tests. Designed to API 6D and ASME B16.34. Body materials include WCB, LCC, WC6, CF8, CF8M, and duplex. Seat options include RPTFE, Devlon, PEEK, and metal-to-metal. Electric, pneumatic, or hydraulic actuation can be fitted in place of the gear operator.

Product packaging

We have cooperated with experienced shipping forwarders for many years, they arrange the shipment. No matter by express, by air or by sea, we will track the course of the goods all the way, to make sure goods arrive at you on time and in good condition.