Submittal Sheet
Technical Data
Materials - body: brass
- cover: PA 66 GF 30
- seals: NBR
Performance
Suitable fluids: water, glycol solution
Max. percentage of glycol: 50%
Max. working pressure: 230 psi (16 bar)
Pressure setting range: 3–60 psi (0.2–4 bar)
Factory setting: 15 psi (1.035 bar)
Indicator accuracy: ±2 psi (± 0.15 bar)
Max. working temperature: 150°F (65°C)
Pressure gauge scale: 0-60 psi / 0-4 bar
Connections - 553542A ½" NPT male inlet x ½" NPT female outlet
- 553549A ½" sweat inlet x ½" NPT female outlet
- 553642A ½" NPT male inlet x ½" NPT female outlet
- 553649A ½" sweat inlet x ½" NPT female outlet
- Pressure gauge ¼" NPT
Typical Specification
Furnish and install on the plans and described herein, a Caleffi AutoFill™
pre-adjustable automatic filling valve as manufactured by Caleffi. Each valve
must be designed with a visual system pressure setting indicator. The filling
valve design must include a brass body, nylon plastic cover, sliding surfaces
in anti-scale plastic, diaphram and seals in NBR and removable cartridge
for maintenance operations. The filling valve must have a pressure indicator
for pre-adjustment of device, accuracy ±2 psi (±0.15 bar). Complete with
isolating valve and filter. Integral downstream pressure gauge (0-60 psi/0-4
bar) for codes 553642A and 553649A. (See product instructions for specific
installation information.)
CALEFFI
Application
The automatic filling valve is a device consisting of a pressure reducing
valve with compensating seat, visual system pressure setting indicator,
an inlet filter, 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 filling 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 filling or topping-off phase, the water feed will
stop when the set pressure is reached. This valve fills 50% faster than
other valves. There are no levers to flip or valve to close.
Submittal Data 02950 NA — Issue Date 08/2015
Dimensions
We reserve the right to change our products and their relevant technical data, contained in this publication, at any time and without prior notice. Contractors should request production drawings if prefabricating the system.
Job name ______________________________________
Job location ______________________________________
Engineer ______________________________________
Mechanical contractor ________________________________
Contractor’s P.O. No. ________________________________
Representative ________________________________
Size ________________________________________
Quantity ________________________________________
Approval ________________________________________
Service ________________________________________
Tag No. ________________________________________
Notes ________________________________________
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15
30
45
60
0
4
2
psi
bar
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15
30
45
60
0
4
2
psi
bar
”
”
”
”
E
D
E
F
D
C
C
A
A
A
A´
B
B
B
D
C
0
0
A´
A´
2015
AutoFill™ pre-adjustable automatic
filling valve
553 series
Code A A´ B C D E
553542A
1
⁄2" NPT
1
⁄2" NPT 4 ¾"
__
1
15
⁄16" 4"
553549A
1
⁄2" SWT
1
⁄2" NPT 4 ¾"
__
1
15
⁄16" 4"
553642A
1
⁄2" NPT
1
⁄2" NPT 4 ¾" 5 ¾" 1
15
⁄16" 4"
553649A
1
⁄2" SWT
1
⁄2" NPT 4 ¾" 5 ¾" 1
15
⁄16" 4"