Zdb/Z2dB...V...L3X Type Hydraulic Modular Relief Valve for Marine Construction Machinery

• Customization: Available
• Function: Pressure Regulating
• Installation: Superposition
• Model NO.: ZDB/Z2DB...V...L3X
• Drive: Hydraulic
• Type: Directly Operated Type
• Pressure: Depending on Model
• Structure: Depending on Model
• Dimension(L*W*H): Depending on Model
• Maximum Pressure: 315 Bar
• Maximum Flow Rate: 200/400 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 16/22
• Trademark: Dingan
• Origin: China Hebei Xingtai Ningjin
• HS Code: 8481901000
• Production Capacity: 60000 Piece/Pieces Per Month
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 10.000kg

Product Description

Product Features
- Stacked structure
- Mounting surface complies with DIN 24340 Type A and ISO4401
-For threaded connection, for baseplate installation
-4 pressure ranges
- 5 optional effective flow directions
- With one or two plug-in pressure relief valves
-1 adjustment form
Adjusting bolt with protective cover

The ZDB and Z2DB valves are pilot-operated relief valves of stacked construction for limiting system pressure. They consist of a valve body (7) and one or two plug-in relief valves (4). The system pressure is set by the plug-in relief valves (4).
In the static position, the valve is closed, and the pressure at port A acts on the valve core (1). At the same time, the pressure acts on the spring side of the valve core (1) through the orifice (2) and acts on the pilot valve core (6) through the orifice (3). If the pressure at port A rises above the setting value of the spring (5), the valve core (6) overcomes the spring force and opens. The oil can flow into the inlet from the orifice (3) and the passage (8) on the spring-loaded side of the valve core (1). A pressure drop is then generated in the valve core (1), which causes the oil port A to T to communicate, so that the system pressure is maintained at the setting value of the spring (5), and the control oil is returned to the outside through the oil port from the two spring chambers.

 

Working medium temperature range		ºC	-30 ~+80 (NBR seals)
			-20 ~+80 (Fluorine Rubber Seal)
Nominal pressure		bar	315
Maximum flow rate		L/min	200/400
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	9.4 9.2 11.8 10.3

 

    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.