Product Name: 2 Inch Stainless Steel Pneumatic Diaphragm Pump Model NO.: QBY Performance: No Leak Diaphragm Material: NBR/ PTFE Valve Body Type: Diaphragm Power: Pneumatic Material: Cast Iron/ Stainless Steel/ PTFE/PP Certification: ISO9001:2008, CE Brand: Yonjou Liquid: Acid Color: Gray, Red, Blue, and Any Other Colors Size: 2 Inches Flow: 2.4m3/H Head: 50m MOQ: 1 Set Port: Ningbo, Shanghai Lead Time: 3-7days Trademark: YonJou Transport Package: Standard Export Plywood Case Packing Specification: International Origin: China HS Code: 8413110000 Product Description Summarize:1.QBYAir Operated (Pneumatic) Double Diaphragm Pumpis a positive displacement pump,adopting compress air, smoke and industry exhaust gas as power source.2. It has two diaphragms, the compressed air come to the pump body to drive the pump in the constant action of sucking and releasing, so it can pump the liquids easily by this principle. Also it is very safe in dangerous environment since it has no electric motor.3. QBY air operated double diaphragm pumps can not only transfer the flow liquid, but alsocan transfer some uneasy flowed medium, with the merits of self-priming pump, diving pump, shield pump, slurry pump and impurity pump etc.Product details:Working Principle:Double Diaphragms, PneumaticMain applications: Oil, Water, Chemical, etc.Driver:Air OperatedMax.permissible fluid temperature:150°C(302°F)Type of connection:Flange, Thread, Quick coupledInstallation position:Connect to compressorCasing parts material:C.I, S.S, PP, Aluminium, PVDF, PTFE linningMaximum grain diameter:10mm (3/8inch)Maximum drive rating:7kgf/cm2Maximum caliber: 100mm(4inch)Maximum discharge-side pressure:6kgf/cm2Maximum head:50m(164ft)Flow rate range: 0.8-30m3/h(3.5-132US.GPM)Performance data:ModelSize(")Capactiy(m3/h)Head(m)SuctionHead (m)MaxGrain Dia.(mm)AirPressure (Kgf/cm2)QBY-103/8"0~0.80~60517QBY-151/2"0~151QBY-251"0~2.472.5QBY-401-1/2"0~874.5QBY-502"0~1278QBY-652-1/2"0~1678QBY-803"0~24710QBY-1004"0~30710