Product Overview

CALEFFI
ACCREDITED
ISO 9001 No. 0003 ISO 9001 FM 21654
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0
60
20
40
80
100
0
1
2
5
6
7
3 4
psi
bar
CA
L
EFF
I
A A
B
E
DC
B’
A
A
B
E
D
C
B’
AutoFill
™
automatic filling valve
5350 series
01085/14 NA
Function
The 5350 series AutoFill
™
automatic fi lling valve is a pressure reducing
valve which when installed on the water inlet piping in closed hydronic
systems will maintain system pressure at a set value, automatically fi lling
up with water as required. It fast fi lls the system to set pressure then
automatically shuts off the water feed. This product is factory pre-set
to 15 psi system pressure. To adjust the set pressure, simply turn the
adjustment knob while observing the integral downstream pressure
gauge. This product has the characteristic of being pre-adjustable,
which means that it can be adjusted at the right pressure value before
the system charging phase. After installation, the system pressure will
automatically adjust itself to the set value and the water feed will stop
when the set pressure is reached. The internal cartridge containing all
the controlling components is pre-assembled as a self-contained unit,
to facilitate inspection and maintenance procedures.
The 5350 series is available with conventional NPT and sweat union
connections. Also available for size 3/4”, the Presscon™ copper tail-
piece with union nut makes installation and maintenance fast, easy and
effi cient. Special slots in the EPDM O-ring allows fl uid to leak during
system testing if unpressed and provide a perfect leak proof seal when
completely pressed.
Product range
5350 series AutoFill
™
automatic fi lling valve ............................................................................... connections 3/4" NPT male, sweat union and press
Code NA10273 Replacement pressure gauge, 2 inch dial, 0 - 100 psi range.........................................................................connection 1/8" NPT male
Code 535004 Replacement cartridge
Technical specifications
Materials - body: brass
- cover: glass fi ber reinforced nylon PA66G30
- control spindle: stainless steel
- moving parts: brass
- diaphragm and seals: NBR
- fi lter: stainless steel
Performance
Suitable fl uids: water
Max. working pressure: 365 psi (25 bar)
Downstream pressure setting range: 6–90 psi (0.5–6 bar)
Factory setting: 15 psi (1.035 bar)
Max. working temperature: 140°F (0–60°C)
Max. fl ow rate: 24 gpm at 21 psid pressure drop
Pressure gauge scale: 0–100 psi (0–7 bar)
Filter mesh size: 0.51 mm (35 mesh)
Environmental: indoor only
Connections:
Main connections:
3
⁄4" NPT male union
3
⁄4" sweat union
3
⁄4" press
Lay length (press connection): 4
7
⁄16"
Pressure gauge:
1
⁄8" NPT
Dimensions
Code A B B’ C D E Wt. (lb.)
535051A
3
⁄4" NPT 5
1
⁄2" 3
1
⁄2"
13
⁄16" 4
7
⁄16" 2
1
⁄8" 2.3
535056A
3
⁄4" press 6
1
⁄4" 3
1
⁄2"
13
⁄16" 4
7
⁄16" 2
1
⁄8" 2.3
535059A
3
⁄4" SWT 5
1
⁄2" 3
1
⁄2"
13
⁄16" 4
7
⁄16" 2
1
⁄8" 2.3
Replaces 01085/12 NA