HYDAC Hedeker relief valve DB4E-012-250V made in Germany silver color used for sany zoomlion concrete pump truck

Product Description/Features:

The working principle of the relief valve mainly involves pressure control and flow regulation.

The relief valve controls the pressure of the hydraulic system by setting a spool that regulates the pressure. When the pressure in the hydraulic system exceeds the set value, the relief valve will flow the hydraulic oil back to the tank to ensure that the pressure of the system will never exceed the set value. The effect is similar to that of a voltage regulator in a circuit.

The structure of the relief valve mainly has two kinds: direct acting type and pilot type. The direct-acting relief valve is mainly composed of regulating nut, regulating spring and spool. When the inlet pressure is greater than the set pressure, the valve will open and overflow from the outlet. When the inlet pressure drops to less than the set pressure, the outlet will stop the overflow.

The pilot relief valve is mainly composed of pilot valve and main valve, the pilot valve controls the pressure, the main valve controls the flow.

In general, the relief valve controls the flow of hydraulic oil through the movement of the spool, so as to achieve effective control of the pressure and flow of the hydraulic system.

ABOUT COMPANY:

Changsha HuaYi Technology Co., LTD.,

Changsha HuaYi Technology Co., LTD., specialized in the sale of construction machinery parts.
Our company mainly business in various brands of pump trucks, excavators, cranes, wet spray machines and other accessories, as remote controls, Rexroth oil pump, transfer boxes, double pump pipes, lubrication pump, Harvey/Eaton/Parker/Kawasaki valves.
our company specializes in the offline and online trading of used construction vehicles in China, so the concrete pump trucks displayed on the website may have been sold offline.Our database provides a large number of fresh used concrete pump trucks, used excavator used mixer trucks and other construction vehicles, please contact our sales directly to provide you with more accurate services.Thank you for your patience to browse!​​

             Changsha Huayi Technology Co., Ltd. is located in Changsha, Hunan Province, China, the beautiful capital of construction machinery. We have been specialized in construction machinery for more than 15 years, mainly specializing in concrete pumps and parts of construction machinery equipment, including Sany Heavy Industry, Zoomlion, Putzmeister, Xugong and other well-known brands.
Our company mainly engaged in Sany heavy industry pump parts, Zoomlion pump parts, used mechanical equipment, excavators, cranes, wet spray machine and other accessories, such as remote control, Rexrow oil pump, conveyor box, double concrete pump pipe, lubrication pump, Harvey/Eaton/Parker/Kawasaki /SUN valve well-known brand hydraulic valves.
Our technical backbone has been engaged in the construction machinery industry for 15 years. The company has strong technical service experience, support OEM/ODM services, and strive to provide overseas customers with a one-stop procurement and service platform.
We have been adhering to the faith of integrity to provide our customers with quality products and excellent service, the company has been committed to the concept of technology and service innovation, welcome to work with Huayi, win-win cooperation, and Tonghang hand in hand to create a better future.
Warmly welcome the majority of international friends to Changsha Huayi Technology to discuss cooperation, a cooperation, a lifetime of friends