Watts 174 A-3/4"


Valve, Relief, 3/4 In

174 A-3/4" 47716
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ItemBoiler Pressure Relief Valve
Inlet/Outlet (In.)3/4
Material of ConstructionBronze
Preset Setting (PSI)30
BtuH Rating650,000
Temp. Range (F)250 Degrees
Height (In.)5-1/8
Length (In.)2-1/2
Standards MILV-136-RD, Type III, Rating ASME. NB and HV
Weight 1.150000


Boiler Pressure Relief Valve, Inlet/Outlet (In.) 3/4, FNPT Connection, Material of Construction Bronze, Preset Setting (PSI) 30, BtuH Rating 650, 000, Temp. Range (F) 250 Degrees , Height (In.) 5-1/8, Length (In.) 2-1/2, Standards MILV-136-RD, Type III, Rating ASME. NB and HV

174A Series
  • Meet Mil. Spec. MIL-V-136-RD, Type III, as well as ASME, NB, and HV standards except 26X178 to 26X195 meet ASME Section IV only.
  • Relief Valves
  • Pressure Relief
  • Nonmechanical seat-to-disc alignment; FNPT connections.
  • Drain seal eliminates water trapping and sediment fouling. Heat-resistant diaphragm isolates springs and working parts from water during release. Brass springs, Buna N disc.
  • Max. temp.: 250 F

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