Caleffi AutoFill 573002A Pre-Adjustable Automatic Filling Valve With Backflow Preventer , 1/2 in Nominal , MNPT x FNPT End Style , 175 psi Pressure , Brass Body


Hydronic Auto Fill Valves
MFG #: 573002A Product ID:3113303
Famous Supply
  • Dimensions: 9 in W
  • Series: 573
  • Temperature Rating: 150 deg f
  • Type: Pre-Adjustable
  • Nominal Size: 1/2 in
  • End Style: MNPT x FNPT
  • Pressure Rating: 175 psi
  • Body Material: Brass
The automatic filling unit is a device consisting of a pressure reducing valve with compensating seat, an inlet filter, a shut-off valve and a check valve. It is installed on the water inlet piping in sealed heating systems, and its main function is to maintain the pressure of the system stable at a set value, automatically filling up with water as required. This product has the characteristic of being pre-adjustable, which means that it can be adjusted at the required pressure value before the system charging phase. After installation, during the filling or topping-off phase, the water feed will stop when the set pressure is reached. A pre-assembled version is also available, complete with upstream backflow preventer.
  • Features
  • Warranty
  • Standards & Approvals
3 to 60 psi setting pressure range
15 psi preset outlet pressure
0 to 60 psi/0 to 4 bar pressure gauge scale
PA 66 GF 30 cover
Suitable fluids: Water
Filling valve seal: NBR
DZR low-lead brass backflow preventer body
Backflow preventer diaphragm and seal: EPDM
Filter screen mesh diameter: 0.474 mm (35 mesh)
ASSE 1012
cCSAus B64.3