3 Web Valve Seat

Best-all three-web, center-guided valve has been one of the most popular valve styles in the oil field. The center guided design enables the valve flange to be supported under pressure loads by the top of the center support webs in addition to the seating taper on the inside of the valve seat. This process allows for a large bearing area for the valve that minimizes stress and promotes a long service life.

The single-piece, solid-body construction of this valve provides the strength and rigidity needed for high-pressure drilling operations. Both the valve and seat are manufactured from heat treated, forged-alloy steel.

The unique design of the insert helps seal fluid above the valve, even when the pump is not in operation and pressure is not available to energize the seal. This design helps to maintain prime and ensures that a good supply of mud is available to the piston—even on the first stroke of operation after extended shutdown periods. Special lips in the insert groove of the valve body lock the lip in place, eliminate washout potential, and minimize any chance for loss-circulation or other foreign materials to breach the seal cavity.

The snap-on, polyurethane insert can be replaced in the field; however,Best-all recommends that our special insert installation tool be used to facilitate this process. The valve is offered standard with a polyurethane insert suitable for mud service to 180°F (82°C). A high-temperature polyurethane insert is available as an option for mud temperatures to 220°F (104°C) and higher.

100% interchangeable with Mission, Southwest, Bake SPD and other brands.

Size available as below.