B
B
B6
Parker Hanniļ¬n Corporation
Hydraulic Valve Division
Elyria, Ohio, USA
Sandwich Valves
Catalog MSG14-2500/US
Technical Information Series CM
General Description
Series CM check valves provide an integral, full ļ¬ow
check valve in the pressure 'P' port, 'A' port, 'B' port, or
the tank 'T' port of the directional valve. Reverse ļ¬ow is
blocked. The CM2 and CM3 sizes offer a combination
P&T check version.
Features
ā¢
Valve bodies are manufactured from steel which provides
extra strength and durability for longer life. Internal hard-
ened steel components also provide longer life.
ā¢
Positive shut-off is provided by a fully guided poppet and
allows full ļ¬ow in the unchecked position.
ā¢
Parker CM sandwich style check valves can be used either
on the 'P', 'A', 'B', 'T' ports, or combinations.
ā¢
Large internal ļ¬ow paths allow high ļ¬ow at low pressure
drop.
0
100 7
200 14
300 20
400 27
500
34
0
LPM
GPM
18.9
5
37.9
10
56.8
15
75.7
20
94.6
25
113.6
30
75 PSI
45 PSI
5 PSI
0
100 7
200 14
300 20
400 27
500
34
0
LPM
GPM
56.8
15
113.6
30
170.3
45
227.1
60
283.9
75
340.6
90
5 PSI
45 PSI
75 PSI
0
100 7
200 14
300 20
400 27
500
34
0
LPM
GPM
18.9
5
37.9
10
56.8
15
75.7
20
45 PSI
5 PSI
75 PSI
Performance Curves
Speciļ¬cations
CM2 CM3 CM6
Mounting NFPA D03, NFPA D05, NFPA D08,
Pattern CETOP 3, CETOP 5, CETOP 8,
NG6 NG10 NG25
Maximum 345 Bar 345 Bar 345 Bar
Pressure (5000 PSI) (5000 PSI) (5000 PSI)
Maximum 76 LPM 113 LPM 340 LPM
Flow (20 GPM) (30 GPM) (90 GPM)
Cracking 0.3 Bar (5 PSI), 0.3 Bar (5 PSI), 0.3 Bar (5 PSI),
Pressure 3 Bar* (45 PSI), 3 Bar* (45 PSI),
5 Bar* (75 PSI) 5 Bar* (75 PSI)
* Optional
VISCOSITY CORRECTION FACTOR
Viscosity (SSU) 75 150 200 250 300 350 400
% of P (Approx.) 93 111 119 126 132 137 141
Curves were generated using 100 SSU hydraulic oil. For any other viscosity, pressure
drop will change per chart.
WARNING: This product can expose you to chemicals including Lead, Nickel (Metallic), or 1,3-Butadiene which are known to the State of California to
cause cancer, and Lead or 1,3-Butadiene which is known to the State of California to cause birth defects and other reproductive harm. For more information
go to www.P65Warnings.ca.gov.