Rexroth ZDR Pilot Operated Pressure Reducing Valve
The Rexroth ZDR Pilot Operated Pressure Reducing Valve is a precision-engineered component designed to maintain a consistent output pressure, regardless of fluctuations in the input pressure. This ensures reliable and safe operation in a variety of hydraulic systems, making it an essential element for applications requiring precise pressure control.
Crafted with high-quality materials, the ZDR valve is built to withstand demanding conditions, offering longevity and dependable performance. Its compact design allows for easy integration into existing systems, making it a versatile choice for engineers and technicians alike.
Rexroth ZDR Features
- Sandwich Plate Design: The ZDR valve is designed as a sandwich plate, making it easy to integrate into hydraulic systems where space and modularity are critical.
- Multiple Pressure Stages: The valve offers four distinct pressure stages, providing flexibility in maintaining precise pressure control across various applications.
- Versatile Porting Patterns: It features porting patterns conforming to DIN 24 340 Form A without a locating pin hole (standard) and ISO 4401 with a locating pin hole, enhancing compatibility with different systems.
- Variety of Adjustment Elements: The valve is equipped with four types of adjustment elements, including a rotary knob, a sleeve with a hexagon and protective cap, a lockable rotary knob with a scale, and a rotary knob with a scale, catering to different operational needs.
- Pressure Reduction in Multiple Ports: The ZDR valve can reduce pressure in ports A, B, or P, making it adaptable for various hydraulic circuit requirements.
- Optional Check Valve: For specific versions, the valve includes an optional check valve, allowing free flow in ports A2 to A1, adding an extra layer of functionality.
- High Operating Pressure: The valve supports a maximum operating pressure of 315 bar at the inlet and secondary pressures ranging from 25 to 210 bar, ensuring robust performance under high-pressure conditions.
Rexroth ZDR Specifications
| Specification | Details |
| Valve Type | ZDR 6 D |
| Nominal Size | 6 |
| Series | 4X |
| Maximum Operating Pressure | 315 bar |
| Maximum Flow Rate | 50 L/min |
| Pressure Stages | 25 bar, 75 bar, 150 bar, 210 bar |
| Adjustment Elements | Rotary knob, Sleeve with hexagon and protective cap, Lockable rotary knob with scale, Rotary knob with scale |
| Pressure Reduction Ports | A, B, P |
| Check Valve Option | Available only for pressure reduction in port A2 |
| Installation | Optional |
| Pressure Fluid | Mineral oil (HL, HLP) to DIN 51 524, Fast bio-degradable pressure fluids to VDMA 24 568 |
| Pressure Fluid Temperature Range | -30°C to +80°C (NBR seals), -20°C to +80°C (FKM seals) |
| Viscosity Range | 10 – 800 mm²/s |
| Secondary Pressure (Output) | 25 bar, 75 bar, 150 bar, 210 bar |
| Back Pressure Port T(Y) | 160 bar |
| Weight | Approx. 1.2 kg |
| Cleanliness Class | ISO 4406 (C) class 20/18/15 |
Rexroth ZDR Catalogue
| Model Number | DBE Pilot Operated Pressure Reducing Valve Price | Stock Status |
|---|---|---|
| ZDR6DP1-4X/75YM | $243 - $325 | Limited Stock |
| ZDR6DP2-4X/25YM | $350 - $498 | Limited Stock |
| ZDR6DP1-4X/25Y | $425 - $575 | Limited Stock |
| ZDR6DP2-4X/25Y | $600 - $795 | Limited Stock |
| ZDR 6 DP1-4X/150YM | $825 - $1011 | Limited Stock |
For ZDR for sale and stock availability, please contact our business manager for pricing information.
Rexroth ZDR Electromagnetic Directional Valve Manual PDF
The Rexroth ZDR Series Pilot Operated Pressure Reducing Valve manual is an essential guide for professionals seeking to maximise the performance and longevity of their hydraulic systems. This comprehensive manual offers detailed instructions on installation, operation, and maintenance, ensuring that users can achieve optimal functionality and reliability. With clear illustrations and step-by-step procedures, it simplifies the understanding of complex hydraulic operations. Whether you are a seasoned engineer or new to hydraulic systems, this manual is a valuable resource, designed to support the effective use of Rexroth ZDR valves in a variety of industrial applications.
Rexroth ZDR Valve Manual PDF Free Download
ZDR Electromagnetic Directional Valve Applications
- Hydraulic Systems in Manufacturing: The ZDR valve is extensively used in industrial hydraulic systems to maintain consistent pressure levels, ensuring smooth and safe operation of machinery in manufacturing environments.
- Automotive Industry: This valve is crucial in automotive assembly lines, where precise pressure control is necessary for the operation of robotic arms and other automated systems.
- Aerospace Engineering: In aerospace applications, the ZDR valve helps in controlling hydraulic pressure in various flight control systems, contributing to the overall safety and efficiency of aircraft.
- Renewable Energy Sector: The ZDR valve is employed in hydraulic systems within renewable energy installations, such as wind turbines, to regulate pressure and ensure optimal performance of hydraulic actuators.
- Heavy Machinery: It is used in heavy machinery and construction equipment to control the hydraulic pressure in lifting systems, ensuring safe and efficient operation under varying load conditions.
- Marine Applications: The ZDR valve is applied in marine hydraulic systems, particularly in controlling pressure for steering gear and other onboard equipment, providing reliability and safety in harsh marine environments.
- Oil and Gas Industry: This valve is critical in hydraulic systems used in the oil and gas sector, where maintaining consistent pressure is vital for drilling operations and other high-pressure applications.
Rexroth ZDR FAQ
The Rexroth ZDR 6 is a direct-operated, 3-way pressure reducing valve designed for applications requiring precise pressure control in hydraulic systems. It is typically used in circuits where a lower pressure needs to be maintained or adjusted.
The ZDR 6 valve comes with four pressure stages: 25 bar, 75 bar, 150 bar, and 210 bar, allowing it to accommodate a wide range of hydraulic pressure requirements.
The ZDR 6 valve offers four adjustment options:
- Rotary knob
- Sleeve with hexagon and protective cap
- Lockable rotary knob with scale
- Rotary knob with scale
The ZDR 6 valve is compatible with mineral oils (HL, HLP) as per DIN 51524, biodegradable pressure fluids like HETG (rape seed oil), HEPG (polyglycols), and HEES (synthetic esters). The fluid's viscosity should be within 10 to 800 mm²/s.
The maximum flow capacity of the ZDR 6 valve is 50 L/min, making it suitable for a variety of medium-flow hydraulic applications.
The operating temperature range depends on the type of seals used:
- NBR seals: -30°C to +80°C
- FKM seals: -20°C to +80°C
The ZDR 6 valve features a sandwich plate design, allowing it to be mounted between other hydraulic components. It follows the ISO 4401 and CETOP-RP 121 H porting patterns, which standardize its installation and integration into hydraulic systems.
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