Core Application & Equipment Compatibility
These authentic Rexroth components fit heavy-duty industrial machinery, hydraulic power units, CNC machine tools, and construction equipment. Targeting maintenance engineers and procurement managers, they resolve pressure instability, valve leakage, and control precision loss—key to minimizing production downtime. All comply with DIN EN ISO 4401 and DIN 51524, ensuring seamless interchangeability and reliability in high-pressure (up to 450bar) environments.
1. Solenoid Valves
Rexroth solenoid valves deliver fast, precise flow direction control (≤15ms response) for automated systems. They eliminate coil burnout and spool jamming from voltage fluctuations or oil contamination. Ideal for precision machinery, they use corrosion-resistant coils and hardened spools for long-term stability, complying with ISO 6403.
No. | Model | Rexroth Part Number | Material | Main Wear Causes | Damage Prevention Notes |
1 | 4WE10 G3XCG24N9K4 | N/A (Core Model) | Die-cast aluminum housing, stainless steel spool, epoxy-coated copper coil, Viton seals | Voltage fluctuations burning coils; 5μm+ particles jamming spools | Use ±5% voltage stabilizer; install 3μm inline filter (ISO 12103 Class 7) |
2 | 4WE10C50EG24N9K4M | N/A (Core Model) | Die-cast aluminum housing, stainless steel spool, epoxy-coated copper coil, NBR seals | Incompatible additives damaging seals; high humidity breaking insulation | Use DIN 51524-approved additives; test monthly insulation (≥10MΩ) |
2. S Series Relief Valves
S series relief valves protect hydraulic circuits from overpressure (up to 450bar), critical for heavy machinery. They solve valve seat wear and spring fatigue—fixed by a mining plant via 5μm filtration and spring replacement, extending service life to 24 months. Compact design suits confined power units, complying with DIN 24313.
No. | Model | Rexroth Part Number | Material | Main Wear Causes | Damage Prevention Notes |
1 | S10A05-1X/450J3 S10A1.0 | R901424189, R900420531 | Brass body, stainless steel valve seat, high-tensile spring, Viton seals | Abrasive particles wearing seats; pressure cycling fatiguing springs | Filter to ISO 12103 Class 8; replace spring if deformation >0.5mm annually |
2 | S15A05-1X/450J3 S15A1.0 | R901454065, R900420537 | Brass body, stainless steel valve seat, high-tensile spring, Viton seals | High pressure deforming seats; humidity corroding body | Operate within 450bar; monthly anti-corrosion spray |
3 | S20A05-1X/450J3 S20A1.0 | R901424190, R900420525 | Brass body, stainless steel valve seat, high-tensile spring, Viton seals | Sludge buildup causing jamming; vibration loosening mounts | 6-month oil replacement; use lock washers for mounting |
4 | S25A05-1X/420J3 S25A1.0 | R901454079, R900420511 | Brass body, stainless steel valve seat, high-tensile spring, Viton seals | Seal wear from temperature cycles; impact damaging seat | Annual Viton seal replacement; install protective guard |
5 | S30A05-1X/420J3 S30A1.0 | R901454090, R900420519 | Brass body, stainless steel valve seat, high-tensile spring, Viton seals | Water contamination corroding seats; voltage spikes damaging components | Install water separator (≤150ppm); add surge arrester |
3. M-SR Series Relief Valves
M-SR series relief valves ensure stable pressure regulation for industrial circuits, ideal for plastic injection molding machines. They prevent spring fatigue and valve jamming—solved by regular oil cleaning. Compact and durable, they comply with DIN EN ISO 4401, offering reliable overpressure protection up to 420bar.
No. | Model | Rexroth Part Number | Material | Main Wear Causes | Damage Prevention Notes |
1 | M-SR10KE05-1X/ | R900344549 | Aluminum housing, stainless steel valve core, high-tensile spring, NBR seals | Fine particles wearing valve core; spring fatigue from cycling | 3μm inline filter; quarterly spring elasticity check |
2 | M-SR15KE05-1X/ | R900345372 | Aluminum housing, stainless steel valve core, high-tensile spring, NBR seals | High humidity corroding housing; sludge jamming core | Maintain 40-60% humidity; 4-month oil line cleaning |
3 | M-SR25KE05-1X | R900344778 | Aluminum housing, stainless steel valve core, high-tensile spring, NBR seals | Impact deforming valve core; seal wear causing leakage | Install shock absorber; annual NBR seal replacement |
4 | M-SR30KE05-1X/ | R900344919 | Aluminum housing, stainless steel valve core, high-tensile spring, NBR seals | High temperature degrading seals; vibration loosening components | Monitor temp (≤70℃); quarterly bolt retightening |
4. ZDB/Z2DB Series Pressure Relief Valves
ZDB/Z2DB valves regulate system pressure with high accuracy (±2%), critical for CNC machines. They fix pressure drift and seal leakage—resolved by a textile mill via seat cleaning and Viton seal replacement. Suitable for medium-high pressure circuits, they comply with ISO 6403 for interchangeability.
No. | Model | Rexroth Part Number | Material | Main Wear Causes | Damage Prevention Notes |
1 | ZDB6VA2-4X/315V | R900409893 | Brass body, stainless steel valve core, high-tensile spring, Viton seals | Pressure spikes damaging springs; particles wearing core | Install pressure buffer; filter to ISO 12103 Class 8 |
2 | ZDB6VB2-4X/200V | R900409854 | Brass body, stainless steel valve core, high-tensile spring, Viton seals | Seal wear from oil oxidation; humidity corroding body | Add oil antioxidant; monthly anti-corrosion spray |
3 | ZDB6VP2-4X/200V | R900409844 | Brass body, stainless steel valve core, high-tensile spring, Viton seals | Vibration misaligning core; cycling fatiguing springs | Vibration-damping mounts; 24-month spring replacement |
4 | ZDB6VP2-4X/315V | R900409898 | Brass body, stainless steel valve core, high-tensile spring, Viton seals | High pressure wearing core; sludge buildup causing jamming | Operate within 315bar; 6-month oil replacement |
5 | ZDB10VA2-4X/315V | R900409955 | Cast iron body, stainless steel valve core, high-tensile spring, Viton seals | Impact damaging body; seal leakage from high flow | Install protective guard; stay below max flow |
6 | ZDB10VP2-4X/315V | R900409958 | Cast iron body, stainless steel valve core, high-tensile spring, Viton seals | Low temperature causing core sticking; insulation breakdown | Preheat oil to ≥10℃; monthly insulation test (≥10MΩ) |
7 | Z2DB10VD2-4X/200V | R900411358 | Cast iron body, stainless steel valve core, high-tensile spring, Viton seals | Dual-spool jamming from sludge; spring fatigue | 4-month oil cleaning; quarterly spring check |
5. ZDR/DR Series Pressure Reducing Valves
ZDR/DR series valves reduce and stabilize pressure for sensitive hydraulic components, ideal for automation lines. They solve pressure fluctuation and valve wear—fixed by a packaging plant via 3μm filtration. Complying with DIN 24313, they offer precise regulation (±1%) for low-medium pressure circuits.
No. | Model | Rexroth Part Number | Material | Main Wear Causes | Damage Prevention Notes |
1 | ZDR6DP2-4X/75YM | R900483786 | Brass body, stainless steel valve core, high-tensile spring, NBR seals | Fine particles wearing core; NBR seal degradation from high temp | 3μm inline filter; monitor temp (≤60℃) |
2 | ZDR6DP2-4X/150YM | R900483787 | Brass body, stainless steel valve core, high-tensile spring, NBR seals | Water contamination causing core sticking; vibration loosening mounts | Water separator; use lock washers |
3 | ZDR6DP2-4X/210YM | R900483788 | Brass body, stainless steel valve core, high-tensile spring, NBR seals | Oil oxidation forming sludge; spring fatigue from cycling | Add antioxidant; 18-month spring replacement |
4 | ZDR10DA2-5X/150Y | R900410884 | Cast iron body, stainless steel valve core, high-tensile spring, NBR seals | High pressure wearing core; impact damaging body | Operate within 150bar; protective guard installation |
5 | ZDR10DP2-5X/75YM | R900410875 | Cast iron body, stainless steel valve core, high-tensile spring, NBR seals | Seal wear from humidity; dust blocking vents | Waterproof mounting; monthly vent cleaning |
6 | ZDR10DP2-5X/150YM | R900410880 | Cast iron body, stainless steel valve core, high-tensile spring, NBR seals | Voltage spikes damaging components; sludge jamming core | Surge arrester; 4-month oil line cleaning |
7 | ZDR10DP2-5X/210YM | R900410876 | Cast iron body, stainless steel valve core, high-tensile spring, NBR seals | Continuous cycling overheating; spring fatigue | Set intermittent cycles; 24-month spring replacement |
8 | DR6DP2-5X/150YM | R900472020 | Brass body, stainless steel valve core, high-tensile spring, NBR seals | Incompatible additives degrading seals; particles wearing core | Use Rexroth-approved additives; 5μm filter |
9 | DR6DP2-5X/210YM | R900455316 | Brass body, stainless steel valve core, high-tensile spring, NBR seals | High flow eroding core; vibration misaligning components | Operate below max flow; vibration-damping mounts |
10 | DR10-5-5X/200YM | R900598358 | Cast iron body, stainless steel valve core, high-tensile spring, NBR seals | Water contamination corroding core; seal wear leaking | Water separator; annual NBR seal replacement |
11 | DR20-5-5X/200YM | R900597233 | Cast iron body, stainless steel valve core, high-tensile spring, NBR seals | Impact deforming body; high temp degrading seals | Protective guard; forced cooling (confined spaces) |
12 | DR10-5-5X/315Y | R900596883 | Cast iron body, stainless steel valve core, high-tensile spring, NBR seals | Pressure spikes breaking springs; sludge buildup | Pressure buffer; 6-month oil replacement |
13 | DR20-5-5X/315Y | R900597048 | Cast iron body, stainless steel valve core, high-tensile spring, NBR seals | Vibration loosening wiring; humidity damaging insulation | Quarterly wiring inspection; moisture-proof enclosure |
6. 4WRPH/4WRPEH/4WRP/4WRL Series Proportional Directional Valves
These proportional valves enable precise flow/pressure control for automated systems, critical for construction machinery. They fix control drift and coil burnout—resolved by verifying polarity and 3μm filtration. Complying with ISO 6403, they offer low hysteresis and reliable performance in high-pressure (up to 315bar) circuits.
No. | Model | Rexroth Part Number | Material | Main Wear Causes | Damage Prevention Notes |
1 | 4WRPH6C3B12L-2X/G24Z4/M | 0811404034 | Aluminum housing, stainless steel spool, copper coil, Viton seals | Voltage fluctuations burning coils; particles jamming spools | ±5% voltage stabilizer; 3μm inline filter |
2 | 4WRPH6C3B24L-2X/G24Z4/M | 0811404035 | Aluminum housing, stainless steel spool, copper coil, Viton seals | High humidity breaking insulation; sludge buildup | Moisture-proof enclosure; 4-month oil cleaning |
3 | 4WRPH6C3B40L-2X/G24Z4/M | 0811404036 | Aluminum housing, stainless steel spool, copper coil, Viton seals | Reverse polarity burning coils; vibration loosening connectors | Pre-start polarity check; lock washers for connectors |
4 | 4WRP10EA63S-1X/G24Z4/M | 0811403001 | Aluminum housing, stainless steel spool, copper coil, Viton seals | Continuous cycling overheating; seal wear leaking | Duty cycle controller; annual Viton seal replacement |
5 | 4WRL25V370M-3XG24Z4M | 0811404405 | Aluminum housing, stainless steel spool, copper coil, Viton seals | High flow eroding spools; pressure spikes damaging components | Operate below max flow; pressure buffer installation |
6 | 4WRL16V200M-3X/G24Z4/M | 0811404207 | Aluminum housing, stainless steel spool, copper coil, Viton seals | Low temperature causing spool sticking; oxidation damaging seals | Preheat oil to ≥15℃; add antioxidant |
7 | 4WRPEH6C3B12L-2X/G24K0/A1M | 0811404601 | Aluminum housing, stainless steel spool, copper coil, Viton seals | Dust blocking vents; current overload burning coils | Monthly vent cleaning; current limiter |
8 | 4WRPEH6C3B24L-2X/G24K0/A1M | 0811404602 | Aluminum housing, stainless steel spool, copper coil, Viton seals | Vibration misaligning spools; humidity corroding coils | Vibration-damping mounts; anti-corrosion coil spray |
9 | 4WRPEH6C3B40L-2X/G24K0/A1M | 0811404603 | Aluminum housing, stainless steel spool, copper coil, Viton seals | Incompatible additives degrading seals; spool wear from long use | Rexroth-approved additives; 30-month spool replacement |
10 | 4WRPEH6C4B40L-2X/G24K0/A1M | 0811404613 | Aluminum housing, stainless steel spool, copper coil, Viton seals | Impact damaging spools; poor ventilation overheating | Protective guard; 5cm housing clearance |
11 | 4WRPH10C4B100L-2X/G24Z4/M | 0811404061 | Aluminum housing, stainless steel spool, copper coil, Viton seals | Voltage spikes damaging coils; sludge jamming spools | Surge arrester; 6-month oil replacement |
12 | 4WRPEH10C3 B100L-2X/G24K0/A1M | 0811404801 | Aluminum housing, stainless steel spool, copper coil, Viton seals | 24/7 operation overheating; seal wear leaking | Intermittent operation cycles; annual seal replacement |
13 | 4WRPEH10C4 B100L-2X/G24K0/A1M | 0811404803 | Aluminum housing, stainless steel spool, copper coil, Viton seals | Water contamination causing sticking; vibration loosening bolts | Water separator; quarterly bolt retightening |
7. DBETX/DBETBX/DRE Series Pressure Control Valves
These valves offer precise pressure regulation for sensitive hydraulic systems, ideal for plastic machinery. They fix pressure drift and coil burnout—solved by a food processing plant via insulation maintenance and oil cleaning. Complying with DIN EN ISO 4401, they ensure reliable performance up to 315bar.
No. | Model | Rexroth Part Number | Material | Main Wear Causes | Damage Prevention Notes |
1 | DBETX-1X/180G24-8NZ4M | 0811402017 | Aluminum housing, stainless steel valve core, copper coil, Viton seals | Humidity breaking insulation; particles wearing core | Moisture-proof enclosure; 3μm inline filter |
2 | DBETX-1X/250G24-8NZ4M | 0811402019 | Aluminum housing, stainless steel valve core, copper coil, Viton seals | Pressure cycling fatiguing springs; seal wear leaking | Quarterly spring check; annual Viton seal replacement |
3 | DBETX-1X/315G24-8NZ4M | 0811402016 | Aluminum housing, stainless steel valve core, copper coil, Viton seals | High pressure deforming core; oil oxidation forming sludge | Operate within 315bar; add antioxidant |
4 | DBETBX-1X/180G24-37Z4M | 0811402003 | Aluminum housing, stainless steel valve core, copper coil, Viton seals | Vibration misaligning core; dust blocking vents | Vibration-damping mounts; monthly vent cleaning |
5 | DRE6X-1X/175MG24-8NZ4M | 0811402055 | Aluminum housing, stainless steel valve core, copper coil, NBR seals | Low temperature causing sticking; NBR seal degradation | Preheat to ≥10℃; annual NBR seal replacement |
6 | DRE6X-1X/310MG24-8NZ4M | 0811402058 | Aluminum housing, stainless steel valve core, copper coil, NBR seals | Current overload burning coils; water contamination | Current limiter; water separator (≤150ppm) |
FAQs
Question | Answer |
How to prevent control drift in Rexroth proportional valves? | Maintain oil cleanliness (ISO 12103 Class 7), test insulation monthly (≥10MΩ), and use Rexroth-approved oil. Avoid humidity over 60% and verify wiring polarity pre-start to ensure stable regulation. |
What’s the difference between ZDB and ZDR series valves? | ZDB is a pressure relief valve protecting circuits from overpressure; ZDR is a pressure reducing valve stabilizing pressure for sensitive components. Both comply with DIN EN ISO 4401 for interchangeability. |
Procurement Guidance
Genuine Rexroth components guarantee seamless system compatibility, reduce maintenance downtime, and lower long-term operational costs. Whether you need emergency replacement parts for heavy machinery or bulk procurement for production expansion, we provide authentic products matching original specifications. Contact our team with your equipment model and component requirements to get tailored solutions and professional technical support for smooth integration.
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