Multi-directional valve
Product Description
Multi-way reversing valve is a combination of more than two valve blocks to manipulate the movement of multiple actuators. According to the requirements of different hydraulic systems, it can combine safety valves, overload valves, make-up valves, diverter valves, brake valves, one-way valves, etc., so it has compact structure, simple pipelines, low pressure loss, and The installation is simple, so it is widely used in construction machinery, hoisting and transporting machinery and other mobile machinery that requires the movement of multiple actuators.
Two basic control strategies of double-spool multi-way directional valve. Due to the flexibility of the multi-way reversing valve double spool reversing two oil ports, the two oil ports can adopt flow control, pressure control or flow pressure control respectively.
(1) The load direction of the multi-way directional valve remains unchanged during the entire working process
We know that for truck cranes, excavators, loaders, etc., the load direction of the hydraulic cylinder remains unchanged during the entire working process. Let's take the crane luffing hydraulic cylinder as an example to discuss the control strategy of the double spool.
During the working process of the crane luffing cylinder, its force and load direction always remain unchanged. Therefore, we can adopt a control strategy of pressure control for the rod cavity of the hydraulic cylinder and flow control for the rodless cavity. The rodless cavity flow control is to detect the pressure difference between the front and rear sides of the valve connected to the rodless cavity, and then calculate the size of the valve core opening according to the required inflow or outflow; the rod cavity side adopts pressure control to make the Maintain a low pressure on the side, making it more energy-saving and efficient. Since we use flow control in the rodless chamber, the balance valve used in the original control system can be replaced by a hydraulically controlled one-way valve. This can eliminate the instability of the system caused by the balance valve, thereby improving the stability of the system.
(2) The load direction of the multi-way reversing valve changes during the working process. In this case, adopt "pressure control on the oil inlet side and flow control on the oil outlet side", and use pressure control on the rod cavity side of the hydraulic cylinder, without rod There is flow control on the cavity side. If the load direction is unchanged, because the flow control is adopted on the oil outlet side, we can replace the two-way balance valve with a hydraulically controlled one-way valve to improve the stability of the system. The pressure controller on the oil inlet side maintains a lower reference pressure, which improves the efficiency of the system on the one hand, and prevents cavitation in the system on the other hand.
Specification
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| Applicable Industries |
Construction works |
| Marketing Type |
New Product 2020 |
| Place of Origin |
China Shandong |
| Part name |
Multi-directional valve |
| Part number |
DF25/32.2C |
| Port |
Tianjin, Qingdao, Shanghai, Ningbo, Guangzhou |
| Application |
Wheel Loader |
| Quality |
High Guarantee |
Packing & Delivery
Before packaging, we generally evaluate the fragility of the goods and the value of the goods, and then select the appropriate inner packaging materials. Secondly, we consider that various situations may occur during transportation, and we have requirements for the compression, shock and water resistance of the outer packaging of the goods.
About the shipping method, Cabin usually use sea shipping methods, and the port can be specified by the customers.
Company Profile
Shandong Tianfu International Trade Co., Ltd. was founded in 2001,We are engaged in chinese brand wheel loader spare parts wholesale and export business,We have own brand spare parts ,2,000 square meters of warehouse can ensure enough inventory,Products are exported to Europe, the Middle East, Central Asia, South Asia and other countries. Spare parts of each system including:Power system,Torque Converter and Transmission system,Power train, Hydraulic system,Brake system,Sheet metal system,Cab and accessorie,Conditioner system,Electrical system,Oil product, etc. Wheel Loader Multi-function Auxiliaries : Wood grabber, pipe grabber, cotton grabber, grass grabber, sweeper, marble fork, snow shovel, snow thrower, ditch opener, etc. In addition, we are also engaged in parts of engine. High quality products,enough stock,19 years export experience,we can offer professional service and competitive prices for you . Shandong Tianfu looking forward to cooperation with you !
Certifications
FAQ
1. who are we?
We are based in Shandong, China, start from 2019,sell to Africa(20.00%),Mid East(20.00%),Northern Europe(20.00%),Southeast Asia(10.00%),Eastern Asia(10.00%),Western Europe(10.00%),South Asia(10.00%). There are total about 11-50 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
Loader parts,Engine parts,loader torque converter,loader transmission,Torque converter transmission assembly
4. why should you buy from us not from other suppliers?
Shandong Tianfu International Trade Co., Ltd was engaged in chinese brand wheel loader and engine spare parts wholesale and export business. High quality products,enough stock,rich export experience,we can offer professional service and competitive price.
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW;
Accepted Payment Currency:null;
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