PO - Pilot Operated Check Valves
PO - 12
Pilot Operated Check Valves Catalog
11141715 • Rev AC • March 2015
ORDERING
INFORMATION
SPECIFICATIONS
DIMENSIONS
OPERATION
MC10-RO
1 bar
5 bar
10 bar
26 cSt [121 SUS] hyd.oilat 50°C[122°F]
36912
0
300
100
200
psi
US
gal/min
15
bar
25
20
15
10
5
l/min
605040302010
Pilot
override
1 to 2
Free
Flow
2 to 1
27mm
45-50 N•m [33-37 lbf•ft]
7/8-14 UNF-2A
3
1
2
37.04 [1.46]
8 [0.31]
1.6 [0.06]
Ø 1.2 [0.83]
P103 753
Piston seals
Omit = No seal
OR = Seals included
Seal kit
35401419
35401519
Crack Pressure
1 = 1 bar [15 psi]
5 = 5 bar [73 psi]
10 = 10 bar [145 psi]
Seals
B = Buna-N
V =Viton
MC10-RO-5-OR-A-B-6S
Housing and portsHousing P/N
00 =No Housing No Housing
SE3B =Al, 3/8 BSPSDC10-3S-SE-3B
SE4B =Al, 1/2 BSPSDC10-3S-SE-4B
6S =Al, #6 SAESDC10-3S-6S/6S
8S =Al, #8 SAESDC10-3S-8S/6S
Other housings available
This is a pilot-to-open check valve.
Rated pressure 250 bar [3600 psi]
Rated ow at 7 bar
[100 psi]
45 l/min
[12 US gal/min]
Leakage 6 drops/min @
Rated pressure
Weight 0.12 kg [0.26 lb]
Pilot ratio 3.0:1
Cavity SDC10-3S
Note: A piston seal requires a 4.5 bar [65 psi] or
greater return spring.
Theoretical performance
Schematic
Cross-sectional view
Specications
mm [in]
Reverse Pilot to Open
MC10-RO
