Modular Valves
D
D-79
Pilot Operated Check
Modular Valve
50 to 300
rr
/min
25,35MPa
Features
qThis modular valve is used to prevent
actuator self-running and to maintain
actuator position.
wMaximum Operating Pressure: 25,
35MPa {255, 357kgf/cm
2
}
Specifications
Model No.
Nominal
Diameter
(Size)
Maximum Working
Pressure
MPa{kgf/cm
2
}
Maximum
Flow Rate
r/min
Cracking pres-
sure
MPa{kgf/cm
2
}
Area Ratio
Weight
kg
Gasket Surface
Dimensions
Pilot Piston
Check Valve
Seat
Needle Valve
Seat
OCP-G01-W1-21
W2
1/8 25{255} 50
0.2{2.0}
0.5{5.1}
1 0.37
⎯
1.2
ISO 4401-03-02-0-94
OCP-G01-A1-21
A2
0.2{2.0}
0.5{5.1}
OCP-G01-B1-21
B2
0.2{2.0}
0.5{5.1}
OCP-G01-W1-F-21
W2
0.2{2.0}
0.5{5.1}
1 0.51 0.06 1.2
OCP-G01-A1-F-21
A2
0.2{2.0}
0.5{5.1}
OCP-G01-B1-F-21
B2
0.2{2.0}
0.5{5.1}
OCP-G03-W1-J50
W2
3/8 25{255] 100
0.2{2.0}
0.5{5.1}
1 0.49 0.07
3.6
ISO 4401-05-04-0-94
OCP-G03-A1-J50
A2
0.2{2.0}
0.5{5.1}
OCP-G03-B1-J50
B2
0.2{2.0}
0.5{5.1}
OCP-G03-W1-D-J50
W2
0.2{2.0}
0.5{5.1}
1 0.49
⎯
OCP-G03-A1-D-J50
A2
0.2{2.0}
0.5{5.1}
OCP-G03-B1-D-J50
B2
0.2{2.0}
0.5{5.1}
OPH-G04-W1-10
W2
1/2 35{357} 300
0.2{2.0}
0.5{5.1}
1 0.50 0.07
6.8
ISO 4401-07-06-0-94
OPH-G04-A1-10
A2
0.2{2.0}
0.5{5.1}
OPH-G04-B1-10
B2
0.2{2.0}
0.5{5.1}
OPH-G04-W1-D-10
W2
0.2{2.0}
0.5{5.1}
1 0.50
⎯
OPH-G04-A1-D-10
A2
0.2{2.0}
0.5{5.1}
OPH-G04-B1-D-10
B2
0.2{2.0}
0.5{5.1}
zNote that when the 01 size has the
auxiliary symbol "F," tank port back
pressure can cause the small valve
to open, making it impossible to
maintain pressure.
xIf tank port back pressure causes the
small valve to open and make it
impossible to maintain pressure with
the 03, 04 size, use a direct type with
auxiliary symbol "D."
cMinimum pilot pressure fluctuates
with the input side pressure during
reverse flow. Operate the valve so
pressure is at least twice as high as
the required pressure obtained using
the minimum pilot pressure charac-
teristics graph.
vNote that a sub plate and installation
bolts are not included. See pages D-
90 through D-95 if these items are
required.
b04 series modular valves do not
have an L (DR
2) drain port, so they
cannot be used in combination with
pressure center type solenoid valves
(D).
¡Handling
PILOT OPERATED CHECK
MODULAR VALVE