Caleffi 1/2" MNPT Union x FNPT, AutoFill Pressure Reducing Boiler Fill Valve w/ Pressure Gauge

1/2" MNPT Union x FNPT, AutoFill Pressure Reducing Boiler Fill Valve w/ Pressure Gauge

Brand: Caleffi
Part#: 553642A
In Stock
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Description

Caleffi AutoFill series pressure reducing boiler fill valve with pressure gauge and 1/2" Male NPT Union x 1/2" Female NPT connections. Commonly used for cold water feed into a heating system. Factory pre-set to 15 psi.
AutoFill valve is packed with features, including a pressure gauge (removable and replaceable with any 1/8" NPT gauge), visual pressure setting indicator (adjustable from the top with a standard flat head screwdriver), positive shut-off (round knob at the bottom), built-in & removable fine mesh screen/strainer, anti-scale internal components (prevents scale build-up), replaceable cartridge design, built-in check valve and many others.
Unlike with other boiler fill valves, where it is necessary to hold the fill lever open and wait until the system fills, Caleffi AutoFill feature automatically fills the system to the pre-set pressure.
Made in Italy.

Technical Specifications:
  • Connections: 1/2" Male NPT Inlet x 1/2" Female NPT Outlet
  • Fill Rate: up to 5.5 GPM
  • Max Inlet (upsteam) Pressure: 230 psi
  • Temperature Range: 41 - 150°F
  • Pressure Setting Range: 3 - 60 psi
  • Factory Setting: 15 psi (± 2 psi)
  • Pressure Gauge Scale: 0 - 60 psi
  • Suitable Fluids: Water, Glycol Solution

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