VICTAULIC V024717PHR 2-1/2 717HR FIRELOCK CHK VLV
Victaulic® FireLock® Check Valve Assembly, High Pressure Riser, Series: 717HR, 2-1/2 in Nominal, Grooved, 365 psi Maximum, Specifications Met: ASTM A536, Grade 65-45-12, cULus Listed, Media: Water, 9.37 in Inlet to Outlet Length, 10-1/2 in Top to Inlet Center, Ductile Iron Body, Nitrile Seal, Painted Black Enamel The series 717R and series 717HR FireLock® high pressure check valves are CAD-designed for hydrodynamic efficiency and available in 2 to 3 in/50 to 80 mm (series 717HR) and 4 to 8 in/100 to 200mm (series 717R) sizes. In the series 717HR high pressure check valve, the stainless steel disc is seated against the O-ring seal which is installed in the electroless nickel-plated end face the series 717R check valve features an elastomer encapsulated disc and a welded in nickel seat for superior corrosion resistance. Both valves feature a spring assisted, single disc design which provides a leak-free seal with as little as 5 ft/1.5 m of head. Either valve can be installed in horizontal or vertical positions. In both valve designs, the single disc mechanism incorporates a spring assisted feature for non-slamming operation. Each valve is factory tested to the rated working pressure. For systems not requiring a riser check option refer to publication 10.08. Both valve designs include upstream and downstream pressure taps.
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