• Premium Double Nitrile Diaphragms: Our air-operated double diaphragm pump adopts nitrile diaphragms, durable, corrosion-proof, and long-lasting. Max. Temperature: 150 ℉/66 ℃; Max. Pressure: 90 psi; Max. Flow Rate: 3 GPM; Max Head Lift：2196.85 ft/60 m±15%.
• Sturdy & Leak-proof Construction: The diaphragm pump housing is made of cast iron material, bolted against leakage, sturdy, and corrosion-proof for long-time use.
• Excellent Air-operated Performance: Inlet/Outlet Port Size: 1/2 inch; Air Inlet Size: FNPT 1/4 inch. A high-quality glyd ring, the double-acting sealing, strengthens air performance.
• Unique & Professional Designs: Our double diaphragm pump features an externally available air distribution system. The modular air valve is stainless. This low pulsation air valve provides smooth and rapid changeover for increased efficiency and minimizes downtime.
• Wide Applications: This diaphragm pump can handle various fluids, such as waste oil, alcohol, hydraulic fluid, gasoline, diesel, detergent, drink, and so on. It is widely used in many industries, such as petroleum, metallurgy, mining, coating, printing, water treatment, and automobile.

Air-Operated Double Diaphragm Pump, 1/2" Inlet & Outlet, Cast Iron Body, 8.8 GPM & Max 120PSI, Nitrile Diaphragm Pneumatic Transfer Pump for Petroleum, Diesel, Oil & Low Viscosity Fluids
Sturdy Cast Iron Body
Nitrile Double Diaphragm
Professional Air-Operated Designs
Sealed Ball Valve
Handle Various Material
Versatile Uses
Suction: 0-5 m (0-16.4 ft),Outlet Port: 1/2 inch (12.7 mm),Body Material: Cast iron,Inlet Port: 1/2 inch (12.7 mm),Color: Blue,Model: QBK-15,Air Inlet Size: 1/4 inch (6.35 mm),Max PSI: 90 psi,Gas Nozzle: 0.32 inch (8 mm),Max Flow Rate: 3 GPM,Max Head: 196.85 ft/60 m±15%