Hydraulic Control Valve Manufacturers - CSIequipt
We offer various valves and system solutions required in hydraulic systems. Changsong Industrial Equipment Shandong Ltd. (CSIequipt) is committed to providing industrial equipment for global high-quality industrial enterprises, including complete sets of equipment and parts, fluid equipment manufacturing, centralized procurement of mechanical equipment, instruments, and meters for large enterprises, and global procurement.
Hydraulic Valve
A hydraulic valve is a mechanical device designed to control the direction of a fluid (usually oil) through a hydraulic circuit. the system regulates the motor's speed and the cylinder's movement. Commonly used in clamping, control, lubrication, and other oil circuits. There are direct-acting types and pilot types, mostly using the pilot type.
The hydraulic transmission is used to control the liquid pressure, flow, and direction of the components. Which control the pressure is called pressure control valve, control flow is called flow control valve, control through, break and flow direction is called direction control valve.
Advantages
(1) flexible action, reliable role, small shock and vibration, low noise, and long service life.
(2) fluid through the hydraulic valve, the pressure loss is small; valve mouth closed, good sealing performance, small internal leakage, no external leakage.
(3) The controlled parameters (pressure or flow) are stable, and the amount of change is small when subject to external interference.
(4）Compact structure, easy installation, commissioning, use, and maintenance, good versatility.
Hydraulic System Valves Application
Hydraulic valves are used in hydraulic power loads to direct fluid into as well as out of cylindrical piping. Hydraulic valves can be used to control the direction and amount of fluid power in a circuit.
Therefore, these valves will certainly do so by managing the pressure and the circulation rate in the different areas of the circuit. The system pressure can be controlled by hydraulic valves.
By using hydraulic valves, the problem of pump pressure or oil temperature levels before the oil flows into the hydraulic circuit can be reduced.
For more information on the application and maintenance of hydraulic valves, please click here.
For more information on how to repair hydraulic valves, please click here.
Hydraulic system valve classification
According to the control method classification: manual, electric control, hydraulic control.
Classification by function: flow valve (throttle valve, speed control valve, flow diversion valve), pressure valve (relief valve, pressure reducing valve, sequence valve, unloading valve), directional valve (solenoid valve, manual reversing valve, check valve, liquid-controlled check valve).
According to the installation method: plate valve, tube valve, stacked valve, threaded cartridge valve, cover valve.
According to the manipulation method: manual valve, motorized valve, electric valve, hydraulic valve, electro-hydraulic valve, etc.
Direction Controlling Valves
Directional control valves allow the circulation in a hydraulic system to follow a specific indicated direction. They can abandon or start the flow of fluid. Directional control valves can likewise rub to the movement of fluid in a hydraulic circuit. The various lateral control valves used to maintain adequate fluid movement within the equipment are inspection valves, pre-fill valves, spool valves, etc.
Check valves are inspection valves as well as pre-filled shut-off valves. The inspection shut-off valve impedes the passage and friction of gas in both directions. Meanwhile, the pre-fill pump delivers fluid directly to the hydraulic cylinder and tank. The spool valve regulates the fluid movement inside the tool.
Bidirectional directional control valves are the most basic indicator control valves with two inlet and outlet ports. This device is found in faucets, so fluid movement can both proceed and end. Three-way directional control valves have three ports, called inlet, electrical outlet, and vent. These are found in a single activation tube, blocking all ports through a 3rd functional tube.
In addition, four-way stop valves and five-way stop valves are explicitly used for double-acting actuators and air circuits.
Pressure Controlling Hydraulic Valve
Hydraulic pressure-reducing valves help take care of leaks and bursts in the pipeline. Pressure control valves keep the focus on excess fluid pressure through the pipeline. These valves maintain the focus that the operator gets with his hands.
Various designs are available in hydraulic pressure relief valves, series valves, balancing valves, and pressure-reducing valves. Balancing valves produce a complex device as well as series valves that pick up intense pressure.
One of the important kinds of pressure safety valves is to establish a pressure ceiling by moving the excess back to the tank.
Hydraulic Flow Control Valve
The flow control valves are utilized to keep track of and readjust the fluid or gas flow with the system. Those valves can optimize the effectiveness of the hydraulic system. The flow control valves are used to track as well as regulate system pressure fluctuations. It avoids flow to unfunded components of the network.
Examples of flow control valves consist of the throttle valve and rate control valve. Manifold placed circulation valve, etc. A flow divider is one more form of the flow control valve. This valve takes input liquid from one resource and also reroutes it to two or more sources.
Structure and Sort of Hydraulic System Valves
Many globe valves have the very same construction, especially the body, the spool, and the parts that drive the movement of the spool. There are three types of hydraulic valves, the threaded port type, the baseplate mounted type, and the cartridge type.
Threaded Port Type
These shut-off valves have threaded ports as the name implies, while it is connected by piping. The piping will require space. This layout can be considered an old-style layout so it has many disadvantages such as they are prone to leaks and taking more time to deal with.
Baseplate Mounted Type
This type of valve is a commercial valve that matches the threaded type, the only difference can be seen in the installation. These valves have oil ports that are also visible on the horizontal surface of the valve. These oil ports are bolted to the manifold in this flat area. The oil ports will match the holes in the manifold and are stopped from leaking by the use of an O-ring at each port.
Cartridge type
This type is built and constructed differently from the above types, and the concept and idea are different. Cartridge shut-off valves have better flow and action than the other types. Cartridge-type shut-off valves are also economical.
You need to pay attention Called for the performance of hydraulic valves!
1. Little stress is the optimum working pressure allowed by long-term reliable work of hydraulic control valve and is also limited by the valve strength.
Particular factors additionally influence the optimum allowable working pressure as well as the reversing integrity of the reversing valve, as well as the pressure law of the stress valve. The nominal diameter is one more variable, and better flow capacity is accomplished by a suitable diameter, so optimal circulation could be achieved. Valves that have the very same size would have different nominal flows due to their functions.
2. The hydraulic valves have to satisfy specific efficiency demands.
Also, they are highly sensitive and reliable, and also it has not have increased noise or high resonance throughout the operation. The securing needs to be better if the valve port is closed, and if the valve port is open after that, the direction valve must have much better core stability. High precision is needed during the operation, and it has not to be affected by outdoor interference. These valves must remain in tiny dimensions as well as should be able to mount correctly.
