Mueller Resilient Wedge Gate Valves are non-rising or post indicator types and have an inlet flange complying with ANSI B16.1 Class & MSS SP-60.
Fully unobstructed, oversized flow-way – the sealing mechanism is withdrawn from the flow-way in a full open position. No pockets in the bottom of flow-way to trap sediment or debris. The flow-way will permit passage of full-sized shell cutters.
Bronze Disc Nut – all valves.
Anti-Friction Washers on non-rising stem valves – Located above and below the thrust collar portion of the stem to reduce friction and provide more effective conversion of operating torques into seating loads.
Stem for non-rising stem valves, with O-ring Seals – One O-ring is located below the thrust collar of the stem and two are located above the thrust collar, with the uppermost serving as a dirt seal (4” thru 12”). The O-rings and thrust collar are factory lubricated. The two primary O-rings seal the thrust collar area from outside contaminants and water, and retain an ample amount of lubricant on the thrust collar and anti-friction washers to reduce operating torque and wear.
