Guangdong Yanhui Hydraulic Co., Ltd. is one of the leading manufacturers and suppliers of rexroth r901170278 pressure relief valve in China. We warmly welcome you to wholesale bulk rexroth r901170278 pressure relief valve for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.
Product Overview
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The Rexroth R901170278 is a premium, high-performance industrial hydraulic valve manufactured by Bosch Rexroth. Unlike standard manual relief valves, this is a proportional pressure relief valve. It uses an electrical signal to dynamically and precisely control system pressure, protecting your machinery from overpressurization while optimizing performance.
Key Advantages
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Proportional Control: Offers stepless, smooth pressure adjustments rather than rigid "on-off" settings.
Compact Size 6 (NG6): Built to standard international dimensions, making it highly compatible with existing subplates.
Robust Safety Mirroring: Limits and manages pressure safely up to 200 bar based on your system inputs.
World-Class Durability: Features a poppet-seat design equipped with high-quality FKM (Viton) seals for exceptional wear and leak resistance.
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Technical Specifications
▔▔| Parameter | Specification | Details / Description |
| Material / Part Number | R901170278 | Unique identification code by Bosch Rexroth |
| Model Code | DBET-6X/200G24-8K4V | Complete alphanumeric configuration code |
| Valve Type | Proportional Pressure Relief | Direct-actuated poppet seat design |
| Size (NG) | 6 | Component standard frame size |
| Component Series | 6X | Current technical design generation |
| Maximum Operating Pressure | 420 bar (6,090 psi) | Ultimate peak pressure capability at Port P |
| Pressure Rating (Set Max) | 200 bar (2,900 psi) | Maximum adjustable control pressure value |
| Maximum Flow Rate | 2.0 L/min (approx. 0.53 GPM) | Ideal as a remote control pilot or low-flow valve |
| Supply Voltage | 24 VDC | Required direct current power for the solenoid |
| Solenoid Rated Current | 800 mA | Power consumption profile |
| Seal Material | FKM (Viton) | Premium chemical and temperature resistance |
| Electrical Connection | 3-pole (2 + PE) | Standard connection according to EN 175301-803 |
| Mounting Pattern | ISO 4401-03-02-0-05 | Standard subplate mounting configuration |
| Net Weight | 1.44 kg (3.17 lbs) | Compact and lightweight construction |
Applications
▔▔| Application | Description of Role | Why It Benefits the System |
| Remote Pilot Control | Controls larger, pilot-operated pressure valves from a distance. | Allows heavy-duty systems to be adjusted safely from a computer or digital interface. |
| Plastic Injection Molding | Regulates clamping force and injection pressure during molding stages. | Ensures uniform product thickness and prevents structural defects. |
| Hydraulic Power Units (HPUs) | Provides fine-tuned pressure trimming for industrial testing rigs. | Facilitates highly repeatable, automated test procedures. |
| Metal Stamping & Presses | Manages holding pressures smoothly during complex metal forming. | Prevents sudden pressure spikes, protecting expensive dies and tooling. |
Related Models
▔▔| Related Model Code | Part Number | Key Feature Difference |
| DBET-6X/50G24-8K4V | R901170275 | Low-pressure version rated up to 50 bar |
| DBET-6X/100G24-8K4V | R901170276 | Medium-pressure version rated up to 100 bar |
| DBET-6X/315G24-8K4V | R901170279 | High-pressure version rated up to 315 bar |
| DBETE-6X/200G24K31V | R901149452 | Features integrated electronics (OBE) on the valve body |
| DBET-6X/200G24-8K4M | Variant | Features NBR seals instead of FKM seals |
FAQ
▔▔Q1: What does "Proportional" mean in this valve?
A: Traditional relief valves use a mechanical spring that opens at one fixed, manual setting. A "proportional" valve uses an electrical signal (current) to change the setting instantly. As you increase the electrical current, the valve's pressure setting increases smoothly and proportionally.
Q2: Can this valve handle a high flow rate of 100 Liters per minute?
A: No. The R901170278 has a maximum flow rate of 2.0 L/min. It is intentionally designed as a pilot control valve. To handle large flow volumes, this valve is coupled with a larger, pilot-operated main stage valve.
Contact Us
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Request a Quote Today to ensure your hydraulic system performs at its best with genuine components from Yanhui Hydraulic.
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