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Gas Drainage Hole Packer for Coal Seam PRODUCT DESCRIPTION
Structure:

Consists of high pressure expansion hoses, middle steel pipe, sliding sealing coupling and pressure injection coupling.

Gas Drainage Hole Packer for Coal Seam Application:

Water injection at coal seam, gas suction and discharge.

Technical Parameter:

1. Diameter: 60~150mm(can be customized)

2. Working pressure: 1~6Mpa(can be customized)

3. Operating speed of fluid: 5-8 tons per hour, the amount of gas depending on concentration and pressure.

4. Expansion index: 60~100%

Gas Drainage Hole Packer for Coal Seam Functions:

1. Water injects into the coal seam and releases partial gas, effectively reduces the amount of gas at coal seam.

2. Once the effect of water injection is reached, it can reduce over 80% of dust power and improve working atmosphere, protect from dust explosion.

3. It can moist coal seam and protect coal from self-flaming.

4. Once the system of suction and discharge drilling hole is adopted, the amount of gas and drilling cuttings could be obviously increased, effectively releases gas pressure and prevent incidents when exploring.

5. It solves limitation in coal cutting and drilling matters, effectively prevent gas explosion.

Our main products: 

1. API 7K rotary drilling hose, BOP hose, cement hose and mud hose  
2. Concrete pump hose 
3. EN853/ EN856 1SN/2SN/3SN/4SP/4SH hydraulic hose  
4. Fire resistant hose  and choke line hose  
5. Hammer union（Fig50 Hammer Union,Fig100 Hammer Union, Fig200 Hammer Union, Fig206 Hammer Union, Fig207 Hammer Union, Fig400 Hammer Union, Fig602 Hammer Union, Fig1002 Hammer Union, Fig103 Hammer Union, Fig1502 Hammer Union）, air o unions and mud tank union 
6. Mining hose , inflatable hose  and inflatable packer