Specifications

Boiler Fill Valves
258 customer.honeywell.com 70-6910
FM Boiler Fill Valves
Pressure regulating valve for automatic control of boiler feed water
and other pressure reducing applications. Especially constructed
for expansion tank mounting.
• Fast fill feature.
• Built in check valve.
Application: Fast fill pressure regulating boiler feed valve with check
valve.
Connection Type: NPT
Inlet Connection Size: 1/2 in.
Inlet Connection Type: Sweat or Threaded
Pipe Size: 1/2 in.
Materials (Body): Brass
Maximum Ambient Temperature: 212 F (100 C)
Product
Number
Maximum Operating
Pressure
Regulating
Pressure
Range
Dimensions,
Approximate Weight
Description(kPa) (psi) (psi) (inch) (lb)
FM450 1034 kPa 150 psi 4 psi to 60 psi 4 1/8 in. high x 5
5/16 in. long
1.8 lb 1/2 in. sweat union pressure reducing valve, includes union nut
and both sweat and NPT tailpiece
FM911 1034 kPa 150 psi 4 psi to 60 psi — 4 lb 1/2 in. NPT Backflow preventer and boiler fill valve assembly,
includes union nut and both sweat and NPT tailpiece