2" - 48" Double Disc Gate Valves
Overview
Clow AWWA Gate Valves offer rugged construction, easy operation, long service life and economical maintenance. They are double disc, parallel seat valves meeting or exceeding all requirements of AWWA C500 specifications.
Component parts are constructed of heavy, rugged proportions for extra strength to withstand pipe strain and possible shifting in underground service. Clean, simple internal construction assures long service and easy maintenance. All joint ends and all commonly used accessories and operating devices can be furnished upon request.
Valve operation is easy and dependable with two-point, free-floating wedging. The valve operates with only two points of bearing…only two points of friction…with a simple, self-centering, floating, V-type gate spreading mechanism for positive action in opening and closing. Separate hooks (4" - 48") and bronze wedges permit mechanical adjustment to varying positions.
In opening, turning the stem releases the wedging pressure on the gates, allowing them to move away from their seats before starting upward travel. Further turning of the stem raises the gates into the cover, permitting full opening flow through the valve. In closing, the gates move freely downward to a position opposite their seats. At this point, the hooks come in contact with stops which prevent further downward movement of the hooks. The bronze wedge riding on the hooks then spreads the gates apart and forces them to their seats to make a watertight seal, and shut off the flow through the valve.
Double Disc Gate Valves are specifically designed for heavy pressure service. Neck, flanges, and bell are made extra heavy to withstand pipe strain and possible shifting. Body, cover, gates and stem are built for extra strength, with clean and simple internal construction, to assure long service and low maintenance. Clow Double Disc Gate Valves are available in sizes 2” through 48”.
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