Structural composition
- Upper and lower stainless steel metal end caps: machined stainless steel substrate, positioned installation, with threaded holes at both ends for assembly and positioning inside the valve body;
- O-type rubber sealing ring: Multiple sealing rubber rings are used to achieve radial sealing between components and valve holes, preventing medium short circuit bypass;
- Punching metal skeleton: The cylindrical porous punching support skeleton has high strength and can withstand high-pressure impact of emulsion, protecting the internal filter layer;
- Multi layer metal woven mesh filter layer: metal sintered/woven filter screen, intercepting solid particle pollutants, resistant to emulsion corrosion;
- Positioning step flange: The lower positioning step achieves axial limit of the filter element inside the unloading valve body.
Core advantages
- All stainless steel material, resistant to emulsion corrosion, high pressure impact, suitable for wet underground working conditions
- Multi layer metal mesh filter structure, withstand pressure difference impact, not easily deformed or damaged, long service life
- Comes with multiple O-ring seals to prevent unfiltered media from short circuiting directly
- Precise positioning of steps and installation holes, good assembly interchangeability, compatible with corresponding models of unloading valves
- Intercept solid impurities, protect the unloading valve core, avoid valve core jamming, pressure misalignment, and false unloading faults
- Compact size, compatible with the valve body cavity, easy to disassemble and replace
Working Principle
The emulsion enters the unloading valve, and the medium must pass through the metal filter screen of the filter element component. Impurities such as coal shavings and metal particles inside the medium are intercepted and filtered by the filter screen, and the clean emulsion enters the unloading valve core component; Effectively block impurities from entering the valve mating pair, prevent valve core jamming, and ensure the normal pressure regulation and unloading function of the unloading valve. Replace the entire component directly after the filter element is clogged.
Application fields
Internal filtration of unloading valve for hydraulic support in coal mine comprehensive mining
Working conditions of mining emulsion medium
Hydraulic support valve assembly for underground working face
Optional configuration
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Filtering accuracy |
Different metal mesh filtering accuracies can be customized |
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Material |
304/316L stainless steel optional |
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Size specifications |
Customized processing according to the size of the unloading valve body to ensure interchangeability |
Shipping
FAQ
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: What is a backflush filter?
A: A backflushing filter is a type of filter that removes impurities or contaminants from low viscosity liquids like lubrication oils and fuel oil.
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.
Q: Consequences of Malfunctions in the Control Valve Spool?
A: 1.External leakage of the valve body.
2.Loud fluid flow noise when the handle is in the working position, and slow movement of the upright column or jack.
3.Slow movement of the hydraulic support upright column and jack, accompanied by pressure blocking.
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