Structure:

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

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%

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.

Inflatable packer specification :

    Hebei Huayu Special Rubber Co.,Ltd. is located in the west of WenCheng  Industrial Zone, Jing County, Hengshui City, Hebei, China. It covers an area of  26000 square meters and construction area of 6000 square meters, the fixed asset  is 50 million Yuan with 85 working staffs, the factory has a fully complete set of  advanced analysis and detecting devices, such as winding machine, braiding  machine, vulcanizing machine with totally 60 sets of equipment.

 Our main products:

1. API 7K rotary drilling hoses, BOP hoses, cement hoses and mud hoses

2. Fire resistant hoses and choke line hoses

3. Hammer unions, air o unions and mud tank unions

4. 1SN, 2SN, 3SN, 4SP, 4SH hydraulic hoses

5. Concrete pump hoses

6. Mining hoses, inflatable hoses and inflatable packers

   Since established, relying on the advanced science and technology, the firm has  built up long-term cooperative relation with many famous companies. We are the  first level supplier for SANY, ZOOMLION, CNPC inland. Meanwhile, our products  have been exported to USA, Mexico, Canada, Russia, Sweden and Peru many  times. We have a great desire to cooperate with customers from all over the world  on the basis of win win cooperation.