Size：NG10-NG22
Max working pressure: 315 bar
Max flow: 160 -650L / min
-Pilot directional spool valve
-There are two types of startup
·Electro hydraulic (type weh)
·Hydraulic (type wh)
-Used as stop through valve or stop / through / short circuit valve
-Free flow in P and t of each spool position
-The installation surface of oil port conforms to iso4401-05-04-0-05
-Wet pin DC or AC voltage coil, optional
-Manual emergency operation, optional
| Fixing position | Optional | ||
| Environment temperature range | ℃ | -30 to +50 (NBR seals) | |
| -20 to +50 (FKM seals) | |||
| Weight | Single solenoid | kg | |
| Double solenoids | kg | ||
| Max.operating pressure | Port A, B, P | bar | 315 |
| Port T | bar | 210 (DC), 160 (AC) | |
| Max. flow | L/min | ||
| Fluid | Mineral oil suitable for NBR and FKM seal | ||
| Phosphate ester for FKM seal | |||
| Fluid temperature range | ℃ | -30 to +80 (NBR seal) | |
| -20 to +80 (FKM seal) | |||
| Viscosity range | mm2/s | 2.8 to 500 | |
| Degree of contamination | Maximum permissible degree of fluid contamination:Class 9. NAS 1638 or 20/18/15, ISO4406 | ||
| Type of voltage | DC | AC 50/60Hz | ||
| Usable voltage | V | 12, 24, 96, 110, 205, 220 | 110, 220, 230 | |
| Voltage tolerance (nominal voltage) | % | +10~ -15 | ||
| Power consumption (DC) | W | 30 | – | |
| Holding power (AC) | VA | – | 50 | |
| Switch-on power (AC) | VA | – | 220 | |
| Duty | Continuous | |||
| Switched time | ON | ms | 20 to 45 | 10 to 20 |
| Accord with ISO 6403 | OFF | ms | 10 to 25 | 15 to 40 |
| Switched frequency | times/h | to 15000 | to 7200 | |
| Preventive grade according to DIN 40050 | IP65 | |||
Caution: with electrical connections the protective conductor(PE )must be connected according to the relevant regulations.
DBD… Pressure Relief Valve Direct Operated