Mechanical Flowmeter Mechanical Flowmeter For Pipe Size 1-1/2 in Connection Size 1 1/2 in Connection Type FNPT Fluid Temp Range -40 Degrees to 140 Degrees F Wetted Materials Aluminum Buna-N Fluorocarbon Nickel PTFE Ryton(R) Stainles Steel Max Pressure 50 psi Flow Range 6 to 40 gpm Max Viscosity 50 SUS Liquid GPM Max 40 gpm Length 9 1/4 in Width 6 1/4 in Height 5 1/2 in Housing Material Aluminum Chamber Material Ryton/Stainless Steel Seal Material Viton(R) and Buna