Brochure

1217
60
43., 3("%(++(-&4-(32
BACKFLOW PREVENTERS
Function
The AutoFill™ Combo is a pre-assembled unit consisting of an AutoFill™
and backfl ow preventer.
The AutoFill™ automatic fi lling valve is a pressure reducing valve with
a compensating seat, an inlet fi lter, 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 to a preset
value, automatically fi lling up with water as required. This valve has been
designed as pre-adjustable, which means it can be adjusted at the required
pressure value before charging the system. After installation, during the
fi lling or topping-off phase, the water feed will stop automatically when the
set pressure is reached. There are no levers to fl ip or valve to close. Pre-
assembled with the backfl ow preventer, it 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.
0
1
2
3
4
0
1
0
2
0
30
40
5
0
CALEFF I
bar
psi
Pre-adjustable automatic fi lling valve,
anti-scale, visual system pressure setting
indicator.
Complete with manual shut-off valve,
strainer and check valve.
Brass body.
Max. inlet pressure: 230 psi.
Max. working temperature: 150°F.
Setting pressure range: 3—60 psi.
Preset outlet pressure: 15 psi.
553
AutoFill
™
tech. broch. 01061
Code Description Pk Lbs USD
553542A ½" M NPT inlet x ½" F NPT outlet 10 17 151.00
553549A ½" sweat inlet x ½" F NPT outlet 10 17 143.90
Pre-adjustable automatic fi lling valve with
backfl ow preventer.
Brass body.
Max. inlet pressure: 175 psi.
Max. working temperature: 150°F.
Setting pressure range: 3—60 psi.
Preset outlet pressure: 15 psi.
573
AutoFill
™
Combo
Code Description Pk Lbs USD
573002A ½" F NPT inlet x ½" F NPT outlet 1 5.0 254.20
573009A ½" sweat inlet x ½" F NPT outlet 1 5.0 242.10
Dual check continuous pressure backfl ow
preventer with atmospheric vent.
Brass body.
Max. working pressure: 175 psi.
Working temperature range: 32—210°F.
Emergency backpressure temperature: 250°F
ASSE 1012 listed and CSA B64.3 certifi ed.
573
tech. broch. 01061
Code Description Pk Lbs USD
573403A ½" NPT female inlet/outlet 20 34 117.80
573409A ½" sweat inlet/outlet 20 34 112.20
573493A ½" sweat inlet x ½" F NPT outlet 20 34 115.10
573503A ¾" NPT female inlet/outlet 20 34 123.70
Code Description Pk Lbs USD
F59650 AutoFill™ 553 series replacement cartridge 1 0.2 43.70
Code Description Pk Lbs USD
NA10197 AutoFill™ clear plastic disc cover 1 0.1 1.97
tech. broch. 01061