Parker Hanniļ¬n Corporation
Hydraulics Group
Catalogue HY11-3500/UK
7
7-41
FM UK.INDD 10.05.17
Throttle Check Valve
Series FM
Characteristics
Technical data
Double-throttle check valves from the Parker Manapak
series FM are in sandwich design for easy conļ¬guration
of stack systems. Throttle and check valves are located
in ports A and B.
FM2 and FM3 can be used as meter-in or meter-out
throttle by changing the mounting position.
FM4 can be selected by ordering code as meter-in or
meter-out throttle. FM6 is only available as meter-out
control.
The throttle check valve can also be used to inļ¬uence
the switching time of pilot operated directional valves. In
this case, the valve is positioned between the pilot stage
(CETOP 03, NG06) and the main stage (CETOP 05, NG10
up to CETOP 10, NG32).
Features
ā¢ Two types of metering needle design can be selected
when ordering FM2 and FM3 valves to achieve the
throttle characteristics required to suit the application.
ā¢ Large bypass check valves allow high ļ¬ow at low pres-
sure drop.
ā¢ NG06 - FM2 (CETOP 03)
NG10 - FM3 (CETOP 05)
NG16 - FM4 (CETOP 07)
NG25 - FM6 (CETOP 08)
General
Series
FM2 FM3 FM4 FM6
Size
NG06 NG10 NG16 NG25
Mounting interface NFPA D03 NFPA D05 NFPA D07 NFPA D08
CETOP 03 CETOP 05 CETOP07 CETOP 08
Mounting position unrestricted
Ambient temperature [Ā°C] -20...+60
MTTF
D
value [years] 150
Weight [kg] 1.3 2.4 5.4 7.9
Hydraulic
Max. operating pressure [bar] 350 350 350 210
Max. Flow [l/min] 53 76 200 341
Opening pressure [bar] 0.3 0.3 0.3 0.3
Meter-in throttle ā¢ ā¢ ā¢ ā
Meter-out throttle ā¢ ā¢ ā¢ ā¢
Fluid Hydraulic oil according to DIN 51524
Fluid temperature [Ā°C] -20...+70
Viscosity permitted [cSt] / [mmĀ²/s] 20...400
recommended [cSt] / [mmĀ²/s] 30...80
Filtration ISO 4406 (1999); 18/16/13