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Chinese pressure control,differential pressure switch,Manufacturer,
Supplier, Factory, Exporter in china |
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Differential PRESSURE
CONTROL |
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Porduct Introduction
Differential pressure control is normally used in water system
of central
air-condition to control the pressure differential between the
pipe of
water providing & the pipe of water returning. It is different
from other
pressure differential control, which has a SPDT contact. Through
the
movement of the floating contact, the control reaches the
contact and
makes the engine driver to operate the valve. A typical sample
of
application is to equip the valve in the side pipe near. The
system
water pump. When the pressure differential between the pipe of
water
providing & the pipe of water returning is over the pre-set
pressure,the
valve will open wide,more water goes through the side
valve,which will
rduce the pressure differential between these two pipes of the
water
system.On the oppsite,the pressure differential will increase
between
these two pipes of the water system.
@ For use with fluorinated refrigerants as well as with air and
liquid(Allowable fluid temp: -45< C~+120< C
@ Differential pressure of the pressure control is adjustalbe
@ Novel micro-switch ensures reliable switching
@ Agile mounting bracket is suitable for different occasions
@ It can be used at water system. Reaching to a constant rate of
flow
through the control of the differential pressure between in&out
pipe
@ Please make it clear to us when ordering if the system adopts
the
media corrosive to phosphor and bronze, suitable models will be
recommended |
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Electrical
Function
Rated Amps (A) / Rated Voltage(V)
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125V AC |
250V AC |
Non-Inductive Current |
20A |
10A |
Inductive Current |
Full Load |
15A |
8A |
Locked Rotor |
72A |
Technical
Parameter
Type
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Adjustable Range |
Differential (Bar) |
Factory setting differential |
Reset time(sec.) |
Max.Working Pressure |
Note |
Min |
Max |
SHD1.5C |
0.3 |
1.5 |
0.3 |
0.3 |
NO |
17 |
T:with time-setting
H:high pressure
C:low pressure |
SHD2C |
0.3 |
2 |
0.3 |
0.5 |
NO |
17 |
SHD4C |
0.5 |
4 |
0.5 |
1 |
NO |
17 |
SHD4CH |
0.5 |
4 |
0.5 |
1 |
NO |
33 |
SHD6CH |
1 |
6 |
0.5 |
1 |
NO |
33 |
SHD4TC |
0.5 |
4 |
0.5 |
1 |
45,60,90 |
17 |
SHD4TH |
0.5 |
4 |
0.5 |
1 |
45,60,90 |
33 |
SHD6TH |
1 |
6 |
0.5 |
1 |
45,60,90 |
33 |
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