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740-045 1 1/4 Watts

Part of the 740 Series

Ordering Code: 0383308

UPC: 098268019254

Lead Free: Not In Scope

1 1/4 In Iron Boiler Pressure Relief Valve, 45 Psi, Expanded Outlets

This boiler pressure relief valve is used in hot water space heating boiler applications to protect against excessive pressure on all types of hot water space heating boiler equipment. It consists of a iron body construction with expanded outlet drain connections for hot water space heating boilers, non-metallic disc-to-metal seating, stainless steel spring, and test lever. It offers large discharge capacity, resists corrosive water conditions, resists sticking and freezing, and prevents water and sediment from being trapped in the seat. It is designed for emergency safety relief, not as an operating control. The pressure range is 30 to 75 PSI (2 to 5 bar) with corresponding high ratings from 925,000 to 10,700,000 BTU/hr. It is set at 45 PSI.

Product Features

  • Soft seated
  • Spring loaded
  • Iron body
  • Automatic reseating
Body Material Iron
BrandName Watts
Inlet Connection Size 1 1/4 IN
Inlet Connection Type Female Threaded
Inlet Thread Type NPT
LeadFree Not In Scope
Maximum Temperature-Fahrenheit 250
ModelNumber 740-045 1 1/4
Outlet Connection Size 1 1/2 IN
Outlet Connection Type Female Threaded
Outlet Thread Type NPT
Part Number 0383308
Pressure Range 30 to 75 PSI
Pressure Relief Setting-PSI 45
Pressure Steam Discharge Capacity 2830000 BTU per hour at 45 PSI
Protection Type Pressure
Series 740