Brochure

Shut-off valve
Ball valve
BALLSTOP
Thermometer
Differential by-pass valve
Flow switch
Zone valve
Pump
FlowCal
™
Flow meter
Temperature probe
Safety thermostat
Regulator
Expansion vessel
3-way valve
Pressure switch
Control pocket
Gas filter
Gas regulator
Air separator
Fuel shut-off valve
Anti-vibration joint
Sensor pocket
Safety valve
Y-strainer
P
A
T
F
T
T
T
T
P
A
F
BACKFL
O
W
PREV
Series:
5
73
Sizes:
1/2”
- 3
/4”
S/
N
VENT
Shut-off valve
Ball valve
BALLSTOP
Thermometer
Differential by-pass valve
Flow switch
Zone valve
Pump
FlowCal
™
Flow meter
Temperature probe
Safety thermostat
Regulator
Expansion vessel
3-way valve
Pressure switch
Control pocket
Gas filter
Gas regulator
Air separator
Fuel shut-off valve
Anti-vibration joint
Sensor pocket
Safety valve
Y-strainer
P
A
T
F
T
T
T
T
P
A
F
BACKFL
O
W
PREV
Series:
5
73
Sizes:
1/2”
- 3
/4”
S/
N
VENT
We reserve the right to change our products and their relevant technical data, contained in this publication, at any time and without prior notice.
Caleffi North America, Inc.
3883 W. Milwaukee Road
Milwaukee, WI 53208
Tel: [phone] · Fax: [phone]
[e-mail] · www.caleffi.us
© Copyright 2012 Caleffi North America, Inc.
AutoFill
™
code 553542A and 553549A
Pre-adjustable automatic filling valve with visual system pressure setting indicator. 1/2" NPT male union inlet x 1/2" NPT female outlet (553542A) or
1/2"sweat inlet x 1/2" NPT female outlet (553549A). Brass body. Nylon plastic cover. Sliding surfaces in anti-scale plastic. Diaphragm and seals in NBR.
Cartridge removable for maintenance operations. Maximum working temperature 150°F (65°C). Maximum inlet pressure 230 psi (16 bar). Setting range
3–60 psi (0.2–4 bar). Pressure indicator for pre-adjustment of device, accuracy ±2 psi (±0.15 bar). Complete with isolating valve, filter and check valve.
573 series
Dual check continuous pressure backflow preventer with atmospheric vent. Certified to CSA B64.3 and ASSE 1012. 1/2" or 3/4" NPT female union inlet
and outlet, or 1/2" union sweat inlet with 1/2" sweat union or 1/2" NPT female union outlet. Brass body, stainless steel filter, 35 mesh (0.474 mm), check
valve in PSU, diaphragm and seals in EPDM. Maximum working pressure 175 psi (12 bar). Maximum working temperature 210°F (99°C). Emergency
backpressure temperature 250°F (120°C).
AutoFill
™
Combo code 573002A and 573009A
Pre-adjustable automatic filling unit with backflow preventer 1/2" NPT female union or 1/2" sweat union inlet and 1/2" NPT female outlet. Maximum
working temperature 150°F (65°C). Maximum inlet pressure 175 psi (12 bar).
SPECIFICATION SUMMARIES
Dimensions