Stainless Reduced-Pressure Backflow Preventers
The supplier separately lists an all-stainless reduced-pressure backflow-prevention assembly; request the actual configuration and installation drawing.
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Yongquan lists a buried soft-seated gate-valve construction in its populated gate-valve catalogue.
Define the isolation duty, medium, pipe size, connections and operating conditions. Ask for the actual offered gate construction, body and sealing materials and operating arrangement with a drawing for the selected valve. Request the current catalogue or drawing for this item, and confirm the offered configuration and supporting documents with the company before specifying an order.