Datasheet
Figure 2
@
:
Figure 1
:
@
IN
(
Inlet pressure
)
IN
(
Inlet pressure
)
OUT
(
Outlet pressure
)
OUT
(
Outlet pressure
)
AR10-A
Working Principle (Regulator with Backļ¬ ow Function)
When the inlet pressure is higher than the regulating pressure, the check valve operates as a normal regulator (Figure 1).
When the inlet pressure is shut off and exhausted, any inlet pressure applied to the valve q will be lost. The force for seating the valve q
is the valve spring force w only. When the valve q is opened using the outlet force, the outlet pressure will be exhausted at the inlet side
(Figure 2). When the set pressure is 0.15 MPa or less, the valve q may not open due to the valve spring w force.
CSM
2 OUT
1I N
A
A
Fi
g
ure 2 Backflow
;
:
.
IN OUT
@
Pressure in
diaphragm chamber
Inlet pressure
(IN)
Pressure in
diaphragm chamber
Inlet pressure
(IN)
@
Fi
g
ure 1 Normal
;
:
.
A-A
@
IN
(
Inlet pressure
)
OUT
(
Outlet pressure
)
AR20K-B to AR60K-B
When the inlet pressure is higher than the regulating pressure, the check valve w closes and operates as a normal regulator (Figure 1).
When the inlet pressure is shut off and released, the check valve w opens and the pressure in the diaphragm chamber q is released
into the inlet side (Figure 2). This lowers the pressure in the diaphragm chamber q and the force generated by the pressure regulator
spring e lifts the diaphragm. The valve r opens through the stem, and the outlet pressure is released to the inlet side (Figure 2).
71
Series AR10-A
Series AR20K-B to AR60K-B