non-return valves France

...Rights or brackets, with handle or cap from DN 20 to DN 250 (stainless steel series from DN 20 to DN 25) The RFF check valves function both as shut-off valves and as check valves. When they are open, they act as non-return valves, but they can be locked in the closed position. They then replace a shut-off valve. Their design is similar to that of standard RFF valves. Their dimensions are...

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