You can buy good quality RV25 Diaphragm Pump (Ductile Iron), we are the best distributor from China market.

Feature
Parameter
Diagram
Installation
RV25 Diaphragm Pump
Technical Specifications
Max Working Pressure 120psi(0.84Mpa ,8.4bar)
Max Flow Rate 40 gpm(150 lpm)
Max Reciprocating Speed 276cpm
Max Suction Height(Dry Sucking) 5.48m
Max Permitted Grain 4mm
Max.Air Consumption 45scfm(22.5L/s)
Air Inlet size 1/2 in.npt(f)
Air Outlet size 1/2 in.npt(f)
Fluid Inlet size 1 in.npt
Fluid Outlet size 1 in.npt(f)
Weight Aluminum pump 8.2kg
Stainless steel 15kg
RV25 Pneumatic Diaphragm Pump (Metal)
Technical Specifications
Max Working Pressure 100psi(0.7Mpa ,7bar)
Max.Flow .Rate 40 gpm(150 lpm)
Max Reciprocating Speed 276cpm
Max.Suction Height (Dry Sucking) 5m
Max Permitted Grain 4mm
Max Air Consumption 60scfm(1.7m³/min)
Air Inlet size 1/2 in.npt(f)
Air outlet size 1/2 in.npt(f)
Fluid Inlet size 1 in.npt
Fluid Outlet size 1 in.npt(f)
Weight Aluminum Pump 8.2kg
Stainless steel Pump 15lg