Structural composition
- The main body is machined with brass, with an external threaded structure and a top shaped inner hole, suitable for disassembly and assembly with specialized tools;
- The filter element is a stainless steel folding metal filter, which has a larger filtering area under the same volume;
- Double layered red O-ring seals are installed at both ends to achieve end face sealing and prevent medium bypass;
- Split compression structure, stable pressure bearing, suitable for narrow pilot valve chambers.

Core advantages
- Folding filter design, with a large effective filtering area, strong dirt holding capacity, and longer service life
- Brass shell is rust resistant and wear-resistant, suitable for wet working conditions underground
- Multiple sealing rings are used to prevent short circuits in unfiltered media, ensuring stable filtration accuracy
- Precision thread size, universal interchangeability of mainstream electro-hydraulic control bracket pilot valves
- All metal filter material, resistant to emulsion corrosion, washable and reusable

Technical Specifications
|
Upper shell |
Brass |
|
Filter material |
Stainless steel folding sintered filter screen |
|
Sealing element |
Emulsion resistant rubber O-ring |
|
Applicable medium |
Coal mine hydraulic support emulsion |
|
Installation form |
Threaded screw in valve chamber built-in installation |
Application fields
The electric hydraulic control hydraulic support, pilot control valve, and electromagnetic pilot valve in the coal mine comprehensive mining face are equipped with precision filters.






Customer feedback



FAQ
Q: How long is your delivery time?
A: Generally it is 3--5 days if the goods are in stock, or it is 10--15 days if the goods are not in stock, also according to the quantity you need.
Q: How does a backwash filter work?
A: The backwash is an operation in which water passes backward through the filter at a rapid rate. It enters the tank at the bottom via the riser tube, then passes upward through the filter medium, exiting at the top, via the control valve.
Q: What is the backwash filter on a ship?
A: Auto Back wash filter: An auto backwashing filter is a self-cleaning filtration system that automatically reverses the flow of water or fluid through the filter media to remove accumulated debris and maintain its efficiency.
Q: Why Choose us?
A: Quality: 100% leakage, material, and functionality test in process and before shipping.
Variety: Highly customizable flexibility.
Reliability:15 years of manufacturing experience.
Efficiency: Quick& Effective response.
Utility: Direct link from Manufacturer.
Flexibility: OEM/ODM are provided.
Authentication: Real-time plant audit provided.
Competitiveness: Price is negotiable on large volumes.
Authentication: Real-time plant audit provided.
Competitiveness: Price is negotiable on large volumes.
Q: Spool Application Position?
A: The spool of the hydraulic support control valve is installed in the hole at the center of the control valve sleeve.
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