INDUSTRIAL Material:aluminum; Dissepiment Material:Nitrile Bubber,Fluorine Rubber,Chloroprene Rubber; Type: double diaphragm; Operation Type: Air-operated; Inlet/Outlet Port Size: 1 inch (25mm); Air Inlet Size: NPT 1/2 inch (12.7mm); Flow Rate: 35 GPM; Max Head Lift: 275 ft(84 M); Suction: 23 ft(7M). RUGGED CONSTRUCTION Diaphragm Pump resists corrosion for reliable performance and long life. Bolted construction is designed for leak-free fluid handling. EXCELLENT PERFORMANCE Double Diaphragm Pump features an externally serviceable air distribution system and all-bolted construction. Modular air valve is stall-free, this low pulsation air valve provides smooth and rapid changeover for increased efficiency and minimizes down time. MAXIMUM HEAD Air-Operated Double Diaphragm Pump have top quality, a double-acting seal that delivers better performance. 1/2 inch air inlet with NPT fitting uses standard shop air for easy operation. Sealed Ball Valve The pneumatic pump has a ball valve and a fluid cover for easy maintenance and repair.Diaphragm pump unbalanced air valve ensures no-stall operation High Quality Double Diaphragm Double diaphragm pump motor design delivers optimum air efficiency. Double Diaphragm:PTFE, Nitrile Rubber and Polychloroprene. Aluminum Alloy Pump Body The high-quality aluminum alloy die-casting pump body is fixed with full screws,with good sealing performance, not easy to leak, corrosion resistance and high temperature resistance. Detachable Silencer The pump body is equipped with a silencer to effectively reduce the noise generated by the air pump when it is working.