- Description Part Number 13MHHM50-75 Material 304 Stainless Steel Tube OD 1/2″ – 3/4″ Pressure Rating 1500 PSI at 70°F,1200 PSI at 250°F Wingnut tightened to 25 in. lb. of torque Safety notes Service pressure ratings are based on the following parameters: matching elastomer gaskets and weld ferrules properly aligned and assembled with the clamps tightened to required torques. Tests are done hydostatically with no water hammer or shock loads. Please note the pressure ratings of the described unions may be above the recommended pipe line operating pressures.



