Dingan Zdr10d...L5X Type Modular Pressure Reducing Valve Hydraulic Valve

• Customization: Available
• Function: Pressure Regulating
• Installation: Superposition
• Model NO.: ZDR10D...L5X
• Type: Directly Operated Type
• Pressure: Depending on Model
• Structure: Depending on Model
• Dimension(L*W*H): Depending on Model
• Maximum Pressure: 210 Bar
• Maximum Flow Rate: 80 L/Min
• Material: Rubber Cast Iron
• Color: Blue
• Temperature of Media: Room Temperature
• Power: Hydraulic
• Standard or Nonstandard: Standard
• After-Sales Service Provided: Online Support
• Transport Package: Strong Wooden Carton
• Specification: NG 10
• Trademark: Dingan
• Origin: China Hebei Xingtai Ningjin
• HS Code: 8481901000
• Production Capacity: 60000 Piece/Pieces Per Month

Product Description

Product Features
- Stacked structure
- Mounting surface complies with DIN24340 Type A and ISO4401
-4 pressure ranges
-2 types of adjustment
    Knob
    Adjusting bolt with protective cover
- With pressure gauge interface
- Optional non-return valve (Type "A")
- Pressure relief at ports A, B or P

ZDR type superimposed three-way structure direct-acting pressure reducing valve. It has the function of reducing pressure on the secondary circuit and is used for reducing pressure in hydraulic systems.
The valve comprises a valve body (1), a control valve core (2), a pressure regulating spring (3), a pressure regulating mechanism (4) and an optional non-return valve. The secondary pressure is set by the pressure regulating mechanism (4).
Model "DA":
In the initial position, it is open. Hydraulic oil can flow unrestricted from the working port A1 to the working port A2. Through the pilot line (5), the pressure in port A2 is simultaneously applied to the valve core surface against the compression spring (3). If the pressure in port A2 rises above the value set at the compression spring (3), the control valve core (2) will move against the compression spring (3) to the control position and thus keep the set pressure in port A2 constant. The control signal and pilot oil are supplied from the inside of port A2 via the control line (5). If the pressure in port A2 continues to increase due to external forces acting on the actuator, the control valve core (2) will continue to move against the compression spring (3). Therefore, port A2 is connected to the tank (port TB) via the control edge (6) at the control valve core (2) and the valve body (1). Hydraulic oil continues to flow to the tank until the pressure no longer increases. The leakage oil from the spring chamber (7) always returns to the tank through port TA. The pressure gauge port (8) is used to detect the secondary pressure of the control valve.
For version "DA", the non-return valve can be used for free return flow from port A2 to A1.
Models "DP" and "DB":
For version "DP", the pressure in port P1 is reduced and the control signal and pilot oil are provided internally via port P1. For version "DB", the pressure in port P1 is reduced, however, the pilot oil is obtained from port B.

Working medium temperature range		ºC	-30 ~+80 (NBR seals)
			-20 ~+80 (Fluorine Rubber Seal)
Nominal pressure		bar	315
Maximum flow rate		L/min	80
Working medium			Mineral oil; phosphate ester
Viscosity range		mm^2/s	10~800
Oil contamination degree			Maximum oil contamination according to NAS 1638 Class 9 and ISO 4406 Class 20/18/15
Weight		kg	2.8

    Hebei Ding'an Hydraulic Machinery Co., Ltd. is a professional company integrating the research, production and sales of hydraulic valves. It is an ISO9001:2000 quality management system certified enterprise. The company currently has fixed assets of more than 10 million yuan, covers an area of 16,000 square meters, has strong technical force, and has more than ten years of experience in the development and production of hydraulic valves. It can quickly and high-quality develop various mining and engineering machinery hydraulic valves according to customer requirements.