Rexroth Hydraulics Product Catal... - Hasmak.com.tr

Electric Drives
and Controls
<strong>Hydraulics</strong>
Linear Motion and
Assembly Technologies Pneumatics Service
Extracted from RE 29089/01.05
Page 3 of 4
See Section 16 for applicable
Issue: 07.05
Preferred/Spotlight part numbers
and unit price.
Technical Data
General
Construction
Actuation
Spool type valve, pilot operated
Servo solenoid valve NG 6, with position controller for pilot valve
and main stage
Type of mounting Subplate, mounting hole confi guration NG 10 ... 35 (DIN 24340
Form A and ISO 440) 1)
Installation position
Optional
Ambient temperature range °C (°F) –20 to +50 (–4 to +122)
Weight
NG 10 NG 16 NG 25
kg (lbs.) 8.7 (19) 10.6 (23) 18.4 (40.5)
Vibration resistance, test condition Max. 25 g, shaken in 3 dimensions (24 h)
Hydraulic – measured at n = 46 mm 2 /s (208 SUS) and t = 40 °C (104 °F)
Pressure fl uid
Hydraulic oil to DIN 51524 … 535, other fl uids after prior consultation
Viscosity range re<strong>com</strong>mended mm 2 /s (SUS) 20 to 100 (100 to 465)
max. permitted mm 2 /s (SUS) 10 to 800 (60 to 3700)
Pressure fl uid temperature range °C (°F) –20 to +70 (–4 to +158)
Purity class to ISO code
Maximum permitted degree of con tam i na tion of pressure fl uid to
ISO 4406 (C) Class 18/16/13 1)
Direction of fl ow
See symbol
Nominal fl ow
NG 10 NG 16 NG 25
at Δp = 5 bar (72 PSI) per notch *
L/min (GPM) 50, 80 (13, 21) 180 (48) 350 (92.5)
Max. working pressure in P, A, B bar (PSI) 350 (5076) 350 (5076) 350 (5076)
Max. pressure in X (ext.) bar (PSI) 280 (4060)
Max. pressure in P (X = int.) bar (PSI) 280 (4060)
Max. pressure in T (Y = ext.) bar (PSI) 250 (3626)
Max. pressure in T (Y = int.) bar (PSI) 250 (3626)
Max. pressure in Y (ext.) bar (PSI) 250 (3626)
Min. control oil pressure of “pilot stage” bar (PSI) 8 (116)
Q max. L/min (GPM) 170 (45) 450 (119) 900 (238)
Q N pilot valve, Δp = 35 bar (508 PSI) L/min (GPM) 2 (0.5) 4 (1.0) 12 (3)
Leakage of pilot valve
cm 3 /min (in 3 /min) < 150 (9.15) < 180 (11) < 350 (21)
at 100 bar (1450 PSI)
Leakage of main stage Sb “E”
at 100 bar (1450 PSI )
Q N : Sb “W”, see graph on page 5
L/min (GPM) < 0.25 (0.07) < 0.4 (0.11) < 0.6 (0.16)
1) The purity classes stated for the <strong>com</strong>ponents must be <strong>com</strong>plied with in hydraulic systems.
Effective fi ltration prevents problems and also extends the service life of <strong>com</strong>ponents.
For a selection of fi lters, see catalog sections RE 50070, RE 50076 and RE 50081.
* Flow rate at a different Δp
q x = q nom. ·
Δp x
5 bar (72.5 PSI)
Proportional Valves 318 Section 7