This 3/4 inch pressure relief valve is used in hot water boiler applications to protect against excessive pressure on all types of hot water heating boiler equipment. It consists of a iron body with forged bronze inlet, non-metallic disc-to-metal seating and stainless steel spring. This valve 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 should not be used as an operating control. The pressure setting is 30 psi for applications up to 550,000 BTU/hr.

Features & Benefits

• Seat Located Above Drain
• Water Cannot be Trapped and Sediment Cannot 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

Specifications

• Type: Straight
• 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: Non-Metallic Disc-To-Metal
• Seal Material: Non-Metallic Disc-To-Metal
• Set Pressure Range: 30 PSI
• Temperature Rating: 250 Deg F
• Pressure Rating: 10 PSI
• Application: Hot Water Boiler
• Applicable Standard: ASME Section IV, NB, HV, MIL-V-18634B, Type I, Class 3A, Style B
• Capacity 550000 BTU/Hour
• Size 3-5/8 Inch Length x 2-1/2 Inch Width
• Inlet Material Forged Bronze