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 Click to enlarge image
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 Model Number |
Balem 521 / 15A~50A |
Special Features
- No contamination of media due to the use of Engineering Plastic
- Easy to transport and install due to its light weight
- No need for external energy sources
- Better flow characteristics than conventional ball float valves
- Suitable for use on high pressures due to its pressure actuated pilot configutation
Balem 521 is a combination differential pressure hydraulic/mechanical type
level control valve utilizing the buoyancy of the ballfloat and the system presure.
Due to its simplicity it requires neither external energy sources nor additional
mechanical assistance. The pilot style operation ensures tight shut off and
high flow characteristics, is unaffected by relatively high pressures. Due to
it's plastic construction it is both lightweight and corrosion resistant.
Specifications
| BALEM521 |
|
Model No.
|
521-015
|
521-020
|
521-025
|
521-032
|
521-040
|
521-050
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Size
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15A(1/2")
|
20A(3/4")
|
25A(5")
|
32A(11/4")
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40A)11/2")
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50A(2")
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Operating
Pressure
|
0.05~0.98 MPa(0.5~10kgf/㎠)
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Test
Pressure
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1.72MPa(17.5kgf/㎠)
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Media
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Water, Oil (Order-Made)
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Temperature : 0°C ~ 60°C
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Weight
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180g
|
240g
|
250g
|
430g
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450g
|
650g
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Dimensions
(mm)
|
Size
|
Model No.
|
L
|
H
|
W
|
D(SØ)
|
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15A
|
521-015
|
386
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53.0
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51
|
120
|
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20A
|
521-020
|
401
|
69.5
|
72
|
120
|
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25A
|
521-025
|
401
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74.5
|
72
|
120
|
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32A
|
521-032
|
442
|
92.0
|
108
|
120
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40A
|
521-040
|
444
|
100.0
|
108
|
120
|
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50A
|
521-050
|
454
|
118.0
|
128
|
120
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Materials
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Item No.
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Description
|
Material
|
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1
|
Body
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Xenoy(PC/PBT)
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2
|
Cover
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Xenoy(PC/PBT)
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3
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Diaphragm
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N.B.R
|
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4
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Diaphragm Washer
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PP(PE)
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5
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Pilot Pin
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POM
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6
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Floating Ball
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HDPE
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7
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Snap Pin
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POM
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8
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Lever
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POM
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9
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Coil Spring
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STS304
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10
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Screw
|
STS304
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11
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Nut
|
STS304
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12
|
RH Tapping Screw
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STS304
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13
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Strainer
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HDPE
|
Flow Chart
Standard Piping Diagram
Applications
- For Use on tanks in buildings, appartments and factories.
- As a substitute for mechanical type ball float valves in water tanks and
underground water reservoirs.
- Substitute for liquid level control valves and electronic type level control
valves.
Patents
Installation
- Do not exposure the product to direct sunlight for an extended period time.
- Refer to the standard piping diagram when installing the valve.
- Before installation, finish to clean pipeline.
- It is recommended to install a strainer to prevent malfunction of the valve
due to foreign bodies entering the valve.
- The alarm receiver system needs to be installed in the monitoring room
for early detection of overflow.
- Install the valve near the manhole for easy testing or repair.
- Fit the valve to the pipe using the flats provided on the inlet of the
body.
- To prevent waves while filling, an induction tube with syphon barking hole
must be installed.
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