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Help CenterRexroth 4WRAE Proportional Directional Hydraulic Valve
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Product Introduction
Proportional valve is a new type of hydraulic control device. In the ordinary pressure valve, flow valve and directional valve, the proportion of electromagnet instead of the original control part, according to the input electrical signal continuously, in proportion to the flow of oil pressure, flow or direction for long-distance control. Proportional valves are generally pressure compensated, and the output pressure and flow can be unaffected by load changes.
|
Pressure adjustment |
315bar |
|
Material |
Cast and carbon steel |
|
Color |
Blue or black |
|
Maximum flow |
170/460/870/1600L/min |
|
Weight |
7.4/12.7/17.5/41.8/7.8/13.4/18.2/42.2KG |
|
Maximum switching frequency |
15000 |
|
Service |
OEM |
|
Viscosity range |
2.8 … 500 [35 … 2320] mm 2 /s [SUS] |
|
Hydraulic fluid temperature range |
-30 to +80(-22to+176)(NBR seals) –15 … +80(–4 … +176)(FKM seals) |
Woring principle
With the solenoids (4) de-energised, the control spool (2) is held in the central position by compression springs (3). Direct actuation of the control spool (2) by energising a proportional solenoid.E.g. controlling of solenoid "b" (4).The control spool (2) is moved to the left in proportion to the electrical input signal.Connection form P to A and B to T via orifice-like cross sections with progressive flow characteristics. De-energisation of the solenoid (4).The control spool (2) is returned to the central position by compression spring (3).
Packaging
1 >Standard export packaging
2 >We will use standard export package if no special requirments , but it is availible to provide colourful package according to your design or we make design for your brand if required.
Our Services
1.High quality and competitive price ;
2.Standard packing and timely delivery ;
3.We supply original product ;
4.Experienced supplier for more than 10 years;
5.Warranty half year;
6.Free and professional technical support for 24 hours.
Company Information
Chengdu YiYu Technology Company combines the design, manufacture, installation,debugging and maintenance.The products are mainly all kinds of hydraulic system,hydraulic cylinder and lubrication system, such as : hydraulic system,lubrication system, electronic control system, hydraulic cylinder,pump,valve,oil cylinder,motor,joint,pipe,sensor,power units,relay,seal rings etc.The high professional team worker, high quality products,advanced management and the consummation post-sale service to make us on the top of the business.
FAQ
Q: Are you trading company or manufacturer ?
A: We are trading company.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you have any guarantee on the quality of your valves?
A: As long as the valves are from Chengdu Yiyu technology company, we promise that the minimum period quality assurance is one year. If the products have any problem on quality within this period, we all provide exchange service. If they have been installed, inconvenient to be exchanged, we will provide technical personnel to help solve the problem.
Q:If we have a large quantity of valves, can you give us a discount?
A: We provide unified wholesale price to customers. No matter you buy one or hundreds of valves, we try our best to give you benefit, because we want to establish long-term cooperation relationship with you.
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