Watts Regulator 374A 3/4 Relief Valve 3/4 30 Psi ...

• Boiler Pressure Relief Valve
• Type Lever
• Inlet Size 3/4 Inch
• Outlet Size 3/4 Inch
• End Connection Female Threaded x Female Threaded
• Body Material Iron
• Spring Material Stainless Steel
• Seat Material Metal
• Disc Material Non-Metallic
• Set Pressure Range 30 PSI
• Pressure Rating 30 to 150 PSI
• Inclusions/Features Non-Metallic Disc to Metal Seat， Seat Located above Drain
• Application Hot Water Space Heating Boiler
• Applicable Standard ASME， NB， HV， MIL-V-18634B， Type I， Class 3A， Style B
• Capacity 550000 BTU/Hour
• Overall Dimension 3-5/8 Inch Length x 2-1/2 Inch Width
• Inlet Material Forged Brass

Features / Benefits

• Seat Located Above Drain
• Water Can't be Trapped and Sediment Can't Foul Seat
• Non-Mechanical Seat to Disc Alignment will Not Stick or Freeze
• Water Seal of High Temperature Resisting Material Isolates Spring Working Parts from Water During Relief
• Series 374A Resists Corrosive Water Conditions， Sticking and Freezing and Prevents Water and Sediment from Being Trapped in the Seat
• It is Designed for Emergency Safety Relief and Shall Not be Used as an Operating Control