DR.DP Series Direct Operated Pressure Reducing Hydraulic Valve

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DR.DP Series Direct Operated Pressure Reducing Hydraulic Valve

The DR.DP series direct-operated pressure-reducing hydraulic valve is a high-performance component designed to provide precise and efficient pressure control in hydraulic systems. With its direct-operated mechanism and exceptional functionality, this valve ensures accurate pressure reduction to match specific system requirements.

The DR.DP series direct-operated pressure-reducing hydraulic valve is a high-performance solution for precise pressure control in hydraulic systems. With its direct-operated design, precise pressure control, wide pressure range, and excellent flow capacity, this valve ensures efficient and accurate pressure reduction while protecting system components. Following the recommended usage methods and maintenance practices, the DR.DP series valve delivers reliable performance, extending the lifespan of hydraulic systems. Upgrade your hydraulic system with the DR.DP series direct-operated pressure-reducing hydraulic valve and experience optimal pressure control for enhanced system efficiency and productivity.

DR.DP Series Direct Operated Pressure Reducing Hydraulic Valve Key Characteristics:

  • Direct-Operated Design:
    • The DR.DP series valve features a direct-operated design, allowing it to provide accurate pressure reduction in hydraulic systems.
    • It directly controls the flow of hydraulic fluid to regulate and stabilize the downstream pressure.
  • Precise Pressure Control:
    • This valve offers exceptional precision in pressure control, ensuring the hydraulic system operates within desired pressure limits.
    • It maintains consistent pressure levels, preventing over-pressurization and protecting sensitive system components.
  • Wide Pressure Range:
    • The DR.DP series valve is available in various pressure ranges, making it suitable for various hydraulic applications.
    • It allows customization to match specific system requirements and optimize performance.
  • Flow Capacity:
    • This valve exhibits excellent flow capacity, allowing it to handle high flow rates without compromising pressure control accuracy.
    • It ensures efficient fluid regulation and uninterrupted system operation.

DR.DP Series Direct Operated Pressure Reducing Hydraulic Valve Parameter:

ZDB

SpecificationsNG6NG10NG16NG22
FluidMineral oil suitable for NBR and FKM seal
Phosphate ester for FKM seal
Fluid temperature range℃-30 to +80 (NBR seals )
-20 to +80 (FKM seals )
Viscosity rangemm2/s10 to 800
Degree of contaminationMaximum permissible degree of fluid contamination: Class 9. NAS 1638 or 20/18/15, ISO4406
Max. operating  pressurebarto  315
Max.adjustable pressurebar50; 100; 200; 315
Max. flow-rateL/min60100200400
WeightkgZDB6Z2DB10ZDB10Z2DB10ZDB16Z2DB16ZDB22Z2DB22
about 1.2about 1.9about 2.7about 3.1about 9.4about 11.8about 9.2about 10.3

ZDBD

FluidMineral oil suitable for NBR and FKM seal
Phosphate ester for FKM seal
Fluid temperature range℃-30 to +80 (NBR seals )
-20 to +80 (FKM seals )
Viscosity rangemm2/s10 to 800
Degree of contaminationMaximum permissible degree of fluid contamination: Class 9. NAS 1638 or 20/18/15, ISO4406
Max. operating  pressurebarto  315
Max.adjustable pressurebar50; 100; 200; 315
Size /610162232
Max. flow-rateL/min3080160250
WeightRelief functionkgABCDABCDABCDABCDABCD
23446913161225322947555753

DR.DP Series Direct Operated Pressure Reducing Hydraulic Valve Advantages:

NG5
• Direct structure
• Installation face follows DIN 24340 A and ISO 4401
• Five pressure ranges
• Two adjustment types: knob, adjustment screw with protection cap
• Optional one-directional valve
NG6
• Direct structure
• Installation face follows DIN 24340 A and ISO 4401
• Five pressure ranges
• Two adjustment types: knob, adjustment screw with protection cap
• With pressure gauge interface
• Optional one-directional valve
NG10
• Direct structure
• Installation face follows DIN 24340 A and ISO 4401
• Four pressure ranges
• Two adjustment types: knob, adjustment screw with protection cap
• With pressure gauge interface
• Optional one-directional valve

Usage Method Of DR.DP Series Direct Operated Pressure Reducing Hydraulic Valve:

  1. System Analysis:
    • Conduct a comprehensive hydraulic system analysis to determine the specific pressure control requirements.
    • Consider maximum operating pressure, desired pressure range, and flow rates.
  2. Valve Selection:
    • Select the appropriate DR.DP series hydraulic valve variant based on the system’s pressure control specifications.
    • Consider pressure rating, flow capacity, and compatibility with other system components.
  3. Installation:
    • Follow the manufacturer’s instructions to correctly install the DR.DP series direct-operated pressure-reducing valve in the hydraulic system.
    • Ensure proper alignment and secure connection to prevent leaks and optimize performance.
  4. Pressure Adjustment:
    • Adjust the valve to set the desired downstream pressure.
    • Refer to the valve’s technical documentation for guidance on accurately adjusting the pressure control mechanism.

How Does A Hydraulic Proportional Valve Work?

A hydraulic proportional valve is a key component in hydraulic systems that enables precise control of fluid flow or pressure. It operates based on the principle of varying the valve opening proportionally to an electrical input signal. This allows for accurate and continuous adjustment of flow rates or pressure levels. Let’s delve into the working principles of a hydraulic proportional valve:

  1. Valve Construction:
    • A hydraulic proportional valve consists of a valve body, a spool, and an electromagnetic coil.
    • The valve body contains fluid ports for inlet and outlet connections.
  2. Electrical Control:
    • The proportional valve is controlled by an electrical signal, typically a voltage or current input.
    • The input signal is usually generated by a control system or a proportional control amplifier.
  3. Spool Positioning:
    • The electromagnetic coil is connected to the spool inside the valve body.
    • When an electrical signal is applied to the coil, it generates a magnetic field that moves the spool.
  4. Valve Opening:
    • The spool’s movement controls the opening of fluid passages within the valve.
    • As the spool shifts position, it alters the size of the orifice through which the hydraulic fluid flows.
  5. Proportional Flow or Pressure Control:
    • By adjusting the spool position, the valve regulates the flow rate or pressure of the hydraulic fluid.
    • The degree of spool movement is proportional to the applied electrical signal, allowing precise control.
  6. Feedback Mechanism:
    • Proportional valves often incorporate a feedback mechanism to provide accurate control and closed-loop operation.
    • This feedback mechanism consists of position sensors that monitor the spool’s actual position.
  7. Input Signal Conversion:
    • The electrical input signal is converted into a corresponding spool position by the control system or proportional control amplifier.
    • The conversion ensures that the valve responds accurately to changes in the input signal.
  8. Dynamic Response:
    • Hydraulic proportional valves are known for their fast response times and high dynamic performance.
    • They can quickly adjust the fluid flow or pressure in real-time, enabling precise control even in dynamic applications.

Capacidad de la fábrica:

(1) Montaje

We have a first-class independent research and development assembly platform. The hydraulic cylinder production workshop has four semi-automatic lifting cylinder assembly lines and one automatic tilt cylinder assembly line, with a designed annual production capacity of 1 million pieces. The special cylinder workshop is equipped with various specifications of a semi-automatic cleaning assembly system with a designed annual production capacity of 200,000 and equipped with famous CNC machining equipment, a machining center, a high-precision cylinder processing special equipment, a robot welding machine, an automatic cleaning machine, automatic cylinder assembly machine, and automatic painting production line. Existing critical equipment of more than 300 sets (sets). The optimal allocation and efficient use of equipment resources ensure the accuracy requirements of products and meet the high-quality needs of products.

(2) Mecanizado

El taller de mecanizado está equipado con un centro de torneado de carril inclinado personalizado, un centro de mecanizado, una máquina de bruñido de alta velocidad, un robot de soldadura y otros equipos relacionados, que pueden procesar tubos cilíndricos con un diámetro interior máximo de 400 mm y una longitud máxima de 6 metros.

(3) Soldadura

(4) Pintura y revestimiento

Con pequeñas y medianas líneas de cilindros automáticos de recubrimiento de pintura a base de agua, para lograr la carga y descarga automática de robots y pulverización automática, la capacidad de diseño de 4000 piezas por turno;
También disponemos de una línea semiautomática de producción de pintura para grandes cilindros accionada por cadena, con una capacidad de diseño de 60 cajas por turno.

(5) Pruebas

Disponemos de instalaciones de inspección y bancos de pruebas de primera clase para garantizar que el rendimiento del cilindro cumple los requisitos.

 

 

We are one of the best hydraulic cylinder manufacturers. We can offer comprehensive hydraulic cylinders. We also provide corresponding cajas de cambios agrícolas. We have exported our products to clients worldwide and earned a good reputation because of our superior product quality and after-sales service. We welcome customers at home and abroad to contact us to negotiate business, exchange information, and colabore con nosotros!

 

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