Catalog excerpts
PVDF valves are furnished with Metric pipe size spigots. These spigot ends are sized to either be used with socket fittings or fusion welded directly into the lines. In all cases follow the recommended fusion joining instructions of the Fusion joining machines manufacturer. > On all 1/2Ҕ (15mm) air actuated diaphragm valves and 3/4 (20mm) air to open / air to close actuated diaphragm valves the air connection is a 1/8Ԕ NPT. All other air actuators have 1/4 NPT air connections. The bottom connection opens the valve. The top connection closes the valve. > Maintenance on the diaphragm valves...
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