Rexroth Directional spool valve R900323180
原价为：$171.52。$157.22当前价格为：$157.22。
Short Description
Rexroth Directional Spool Valves – R90 Series Solenoid‑Operated Hydraulic Valves
Complete directional spool valve portfolio from Bosch Rexroth (R90*****). Available as direct‑operated (WE6, WE10, 3SEW6) and pilot‑operated (4WEH) types. Sizes: NG6 (ISO 4401‑03, 350‑420 bar, 60‑80 L/min) and NG10 (ISO 4401‑05, 350 bar, 150 L/min). Features solenoid actuation with wet‑pin technology, 2‑position and 3‑position spool configurations, concealed manual override, and IP65/IP67/IP69K protection options. Material numbers start with R90 . Ideal for machine tools, injection molding, mobile hydraulics, and general industrial hydraulic systems.
Main Product Series – Function & Application Comparison
| Valve Type / Series | Size / Interface | Key Features | Typical Applications |
|---|---|---|---|
| WE 6 (NG6) Series | NG6 / ISO 4401-03 | Solenoid actuated, 350 bar max pressure, 80 L/min max flow, 2‑position and 3‑position spools, wet‑pin solenoid, manual override | Machine tools, clamping systems, general industrial hydraulics |
| WE 10 (NG10) Series | NG10 / ISO 4401-05 | Solenoid actuated, 350 bar max pressure, 150 L/min max flow, high functional limits, low pressure drop | Heavy machinery, mobile hydraulics, injection molding |
| 3SEW 6 (NG6) Series | NG6 / ISO 4401-03 | Direct operated, 420 bar max pressure, 60 L/min max flow, solenoid actuated, inductive position switch option | High‑pressure systems, safety‑critical applications |
| 4WEH Pilot‑Operated | NG10 / ISO 4401-05 | Electrohydraulic pilot operation, 350 bar max pressure, up to 300 L/min flow, hydraulic pilot supply | Large‑flow systems, high‑power hydraulic circuits |
| KKDER | Compact cartridge | 3/2 directional valves, pressure‑compensated, direct operated, multiple voltage options | Subplate or manifold integration |
Typical Applications & Industries:
✓ Machine tools and metal forming ✓ Injection molding and plastics machinery
✓ Mobile hydraulics (construction, agricultural) ✓ Material handling and lifting equipment
✓ Automotive manufacturing ✓ Shipbuilding and offshore
Detailed Description – Rexroth Directional Spool Valve Portfolio
1. Series Overview – Solenoid‑Actuated Directional Control Valves
Rexroth directional spool valves are solenoid‑operated hydraulic components designed to control the start, stop, and direction of fluid flow in hydraulic systems . These valves form a core part of the Bosch Rexroth hydraulics portfolio, known for engineering excellence and reliability in demanding industrial environments. The valve family includes direct‑operated types (WE series) and pilot‑operated types (4WEH series), covering NG6 to NG10 sizes and higher.
Key Family Features:
✓ Solenoid actuation – Wet‑pin solenoid technology with detachable coils; versions available for 12V DC, 24V DC, 98V DC, 205V DC, and AC voltages
✓ Wide pressure range – Up to 420 bar (NG6 high‑pressure versions) and 350 bar (standard)
✓ Flow capacity – 60–150 L/min (direct operated), higher for pilot‑operated types
✓ Multiple spool positions – 2‑position and 3‑position configurations available
✓ Manual override – Concealed manual override (standard) for emergency actuation without solenoid energization
✓ IP65/IP67/IP69K protection – Depending on connector type, suitable for washdown and harsh environments
✓ Subplate mounting – ISO 4401 standardized porting patterns (NG6: ISO 4401-03-02-0-05; NG10: ISO 4401-05)
✓ 100% duty rating – Continuous operation, coil temperature up to 150°C possible
2. WE 6 (NG6) – Direct‑Operated Directional Spool Valves
The WE 6 series is the most widely used Rexroth direct‑operated directional valve family, featuring solenoid actuation and modular construction .
Key Specifications:
✓ Size: NG6 (DIN NG06 / CETOP 03 / NFPA D03)
✓ Mounting interface: ISO 4401‑03‑02‑0‑05 (DIN 24340 A6, CETOP RP 121‑H, NFPA D03)
✓ Max operating pressure: 350 bar (P, A, B) / 210 bar (T)
✓ Max flow: 80 L/min (DC) / 60 L/min (AC)
✓ Spool symbols: Wide range of 2‑position and 3‑position spool types (001, 002, 004, 006, 008, 020, 030, etc.)
✓ Leakage: Up to 10 ml/min per flow path at 50 bar
✓ Switching frequency: Up to 15,000 cycles/hour
✓ Weight: 1.5 kg (1 solenoid), 2.1 kg (2 solenoids)
Example Model:
4WE6D6X/EG24N9DK35LSO407 – Size 6, symbol D, spring return, 24V DC high‑power wet‑pin solenoid, concealed manual override
3. WE 10 (NG10) – High‑Flow Direct‑Operated Valves
The WE 10 series provides higher flow capacity in the same direct‑operated solenoid valve format, suitable for applications requiring up to 150 L/min .
Key Specifications:
✓ Size: NG10 (DIN NG10 / CETOP 05 / NFPA D05)
✓ Mounting interface: ISO 4401‑05
✓ Max operating pressure: 350 bar (P, A, B) / 210 bar (T, DC)
✓ Max flow: 150 L/min (DC) / 115 L/min (AC)
✓ Leakage: Up to 20 ml/min per flow path at 50 bar
✓ Spool symbols: Various 2‑position (020, 026, 030) and 3‑position (001–102) options
✓ Weight: 4.8 kg (1 solenoid), 6.3 kg (2 solenoids)
4. 3SEW 6 – High‑Pressure Variant (420 bar)
The 3SEW series offers higher pressure capability for demanding applications where 350 bar is insufficient .
Key Specifications:
✓ Max operating pressure: 420 bar
✓ Max flow: 60 L/min
✓ Actuation: Solenoid, 24V DC
✓ Position monitoring: Inductive position switch option for spool position feedback
✓ Manual override: Concealed (N9)
Example Model:
M‑3SEW6C37/420MG24N9K4/P – NG6, symbol C, 420 bar, 24V DC, concealed manual override, inductive position switch
5. 4WEH – Pilot‑Operated Valves
The 4WEH series uses electrohydraulic pilot operation, enabling higher flow rates than direct‑operated valves .
Key Specifications:
✓ Size: NG10 and larger
✓ Pilot supply: Internal or external pilot oil supply options
✓ Max flow: Up to 300 L/min
✓ Application: Large‑flow systems requiring proportional or on‑off control
Example Model:
4WEH22J7X/6EG24N9ETS2K4/B10D3 (R900959165) – NG10, symbol J, electrohydraulic pilot operation, 24V DC
6. KKDER – Compact 3/2 Valves
The KKDER series offers compact, direct‑operated 3/2 directional spool valves for subplate or manifold mounting .
Key Features:
✓ Type: 3/2 directional spool valve
✓ Actuation: Solenoid
✓ Design: Pressure‑compensated
✓ Mounting: Cartridge or subplate (C4 / K4 connector versions)
Example Models:
KKDER1CA/HN9V (R901070103) – 3/2 valve, compact design
KKDER1DA/HCG24N0K4V (R900728469) – 3/2 valve, 24V DC, compact
Selection Guide – Understanding the Naming Convention (Rexroth R90**)
Rexroth directional spool valves are identified by material numbers (R‑numbers) and type designations (TYP) .
Material Number Format: R90xxxxxxx
| Code | Meaning |
|---|---|
| R | Material number prefix |
| 90 | Product class: Directional spool valve |
| xxxxxxx | Unique 7‑digit product identifier |
Example: R900959165 = Directional spool valve 4WEH22J7X/…
Type Designation Format: 4WE6D6X/EG24N9DK35LSO407
| Code | Meaning | Options |
|---|---|---|
| 4WE | Valve type: 4‑way directional valve | 4WE, 3WE, M‑3SEW |
| 6 | Size: NG6 | 6 (NG6), 10 (NG10), 22 (NG22) |
| D | Spool symbol | D, C, E, F, H, etc. |
| 6X | Component series | 6X, 3X, 7X |
| G24 | Supply voltage: 24V DC | G24, G12, W110, W230 |
| N9 | Manual override: Concealed | N9 (concealed), N (standard) |
| K4 | Electrical connection: DIN EN 175301‑803 | K4, K, DL, DKL |
| P | Position switch: With | P (with), blank (without) |
Spool Symbol Reference Table:
| Symbol Code | Description | Position Type |
|---|---|---|
| A | 2‑position, solenoid on both sides, without spring | 2‑position |
| C | 3‑position, spring centered, standard | 3‑position |
| D | 2‑position, spring offset in position “b” | 2‑position |
| E | 2‑position, spring offset in position “a” | 2‑position |
| J | 2‑position, detent, no spring return | 2‑position |
| 001–031 | Various 3‑position and 2‑position spool types | Per code |
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