A smaller handwheel may require a more expensive actuator requiring more turns.Ī of this Foreword. Rubber seats shall be recessed in the valve body. Hydraulic testing, flow capacities, and valve torques are based on the flow, upstream of a valve, being uniform and undisturbed, like the flow produced by a long length of constant-diameter, straight pipe. If this is of concern, qwwa should be To learn more about pricing, product customizations, delivery times and more, please call United Water Products directly at or send us an email through our Contact form. AWWA C504 Rubber Seated D.I Butterfly Valve The provision of test records that are specified according to Sec.
Valves mm and larger shall have seats bi-directionally field adjustable around the full degree circumference, under full pressure from the perimeter without removal adwa the valve. The following items should be provided by the purchaser: Shaft seals shall be of a design allowing replacement of seals without removing the valve shaft. The valves and actuators.Ī drawing or description of the piping arrangement sufficient to describe significant aawa line flow conditions to which the valve disc may be subjected. Document Language: English Published By: American Water Works Association (AWWA) Page Count: The butterfly valves shall conform to the latest edition of AWWA-C Standard for Rubber Seated Flanged AWWA Butterfly Valves. UWP Model, Ductile Iron Butterfly Valve – Conforms to AWWA C – DI Bodies translate into pure strength achieving three times that of Cast Iron alone.
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