C18DB.indd, dd
Parker Hanniļ¬n Corporation
Hydraulic Valve Division
Elyria, Ohio, USA
DIN Slip-in Cartridge Valves
Catalog HY14-2555/US
168
Technical Information Series C18DB
General
Size NG25 NG32 NG40 NG50 NG63
Interface
2-way slip-in cartridge valve, according to DIN ISO 7368
Mounting Position
Unrestricted
Operation
Hydraulic
Ambient Temperature
-40Ā°C to +60Ā°C (-40Ā°F to +140Ā°F)
Hydraulic
Maximum Operating Pressure
350 Bar (5075 PSI)
Nominal Flow, āp = 5 Bar (73 PSI)
450 LPM
(119 GPM)
900 LPM
(238 GPM)
1300 LPM
(344 GPM)
1800 LPM
(476 GPM)
3600 LPM
(952 GPM)
Fluid
Hydraulic oil according to DIN 51524 ... 525
Viscosity, Recommended
30 to 80 cSt (mm
2
/s)
Viscosity, Permitted
20 to 380 cSt (mm
2
/s)
Fluid Temperature, Recommended
+30Ā°C to +50Ā°C (+86Ā°F to +122Ā°F)
Fluid Temperature, Permitted
-20Ā°C to +60Ā°C (-4Ā°F to +140Ā°F)
Filtration
NAS 1638 class 9, to be achieved by Ć10 > 75
Control Volume Spring Chamber
Surface C
6.45 (cmĀ³) 12.21 (cmĀ³) 20.32 (cmĀ³) 39.40 (cmĀ³) 94.56 (cmĀ³)
Control Surface FC 100%
FSt 123.8% 108.6% 121.5% 117.0% 121.0%
FA/B Approxiamtely 60% / 40% related on surface C
Opening Pressure Flow Direction B to A L=0.25 Bar (3.6 PSI), N=1.25 Bar (18.1 PSI), S=4.0 Bar (58.0 PSI), U=10.0 Bar (145.0 PSI)
Opening Pressure Flow Direction A to B L=0.16 Bar (2.3 PSI), N= 0.85 Bar (12.3 PSI), S=2.7 Bar (39.2 PSI), U=6.6 Bar (95.7 PSI)
Speciļ¬cations
Performance Curve