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AutoFill™ Combo Dual Check Backflow Preventer 573 - NA Market

Unique ref.: 5730XXA
Brand: Caleffi
Product family: HVAC
Product group: North America
Date of publishing: 2020-09-25
Edition number: 2
Type: Object (single object)
Download (1)
Pre-adjustable automatic filling valve with backflow preventer. Brass body. Max inlet pressure: 175 psi Max working temp: 150˚F Setting pressure range: 3 - 60 psi Preset outlet pressure: 15 psi

The automatic fi lling valve is a device consisting of a pressure reducing valve with compensating seat, visual system pressure setting indicator, an inlet fi lter, anti-scale internal parts, a shut-off valve (round knob on bottom) 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 at a set value, automatically fi lling up with water as required. The valve is pre-adjustable, meaning it can be set to the desired pressure value before the system charging phase. After installation, during the fi lling or topping-off phase, the water feed will stop when the set pressure is reached. This valve fi lls 50% faster than other valves. There are no levers to fl ip or valve to close. Pre-assembled with the 573 series backfl ow preventer, the AutoFill™ Combo features an atmospheric vent which is designed to protect drinking water systems from return fl ow, caused by back-siphoning or back pressure, of contaminated fl uids. The 573 series has been specifi cally certifi ed to standards CSA B64.3 and ASSE 1012.


Material main: Brass
Material secondary: Stainless steel
Designed in: Italy
Manufactured in: Italy

BIMobject Category: HVAC - Other HVAC
IFC classification: Valve
UNSPSC name: Valves
UNSPSC code: 401416
Uniclass 1.4 Code: JT10
Uniclass 1.4 Description: Heating systems
Uniclass 2.0 Code: PR-94-94-xx
Uniclass 2.0 Description: Backflow Prevention Devices
Uniclass 2015 Code: Pr_65_54_95_05
Uniclass 2015 Description: Backflow prevention devices
NBS Reference Code: 94-94-xx
NBS Reference Description: Backflow Prevention Devices
CSI MasterFormat 2014 Code: 23 00 00
CSI MasterFormat 2014 Title: Heating, Ventilating, and Air Conditioning (HVAC)
OmniClass Number: 23-27 31 11
OmniClass Title: Backflow Preventors
CSI UniFormat II Code: D30
CSI UniFormat II Title: HVAC
This product is available in:
North America
  • Canada
  • United States

BIMobject SEEK Properties

HVAC - Other

Name Value
Connection Size 0.5 in
Description Pre-assembled Dual Check Backflow Preventer and pre-adjustable automatic fill valve
Height 6 in
Length 9" — 11"
Material Brass
Mounting pipeline
Nominal Height 6 in
Nominal Length 9" — 11"
Secondary Material Stainless Steel
Shipping Weight 5 lb
Unit Weight 5 lb

COBie UK

UK.COBie.Component

UK.COBie.Component

This property set allows objects to be COBie UK BIM Level 2 classified

Name Value
Description Pre-assembled Dual Check Backflow Preventer and pre-adjustable automatic fill valve
Length 9" — 11"
UK.COBie.Type

UK.COBie.Type

This property set allows objects to be COBie UK BIM Level 2 classified

Name Value
Description Pre-assembled Dual Check Backflow Preventer and pre-adjustable automatic fill valve
Material Brass
Nominal Height 6 in
Nominal Length 9" — 11"

BIMobject®