Clamp Clamp Type Clamp Clamp Connection Type Wing Nut Compatible Tube Size 1 1/2 in Material 304 Stainless Steel Includes Lanyard No Maximum Operating Pressure 85 psi Maximum Operating Temperature 320 Degrees F Trade No 40 Compatible Flange Outside Diameter 2 11/64 in Vacuum Rating 10-7 torr @ 72 Degrees F Clamp Locking Mechanism Wing Nut Standards GB4982-ISO-K Compatible Tube Material Stainless Steel Minimum Operating Temperature 4 Degrees F