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Gas Drainage Hole Packer - China

price: contact company for price

Gas drainage hole packer has all the functions of water injection hole

packer, such as water injection, reducing gas content, improving coal

humidity and preventing explosion accident. Besides, it can let out the

gas. It is composed of four parts: high pressure inflation rubber hose,

steel tube, sliding seal joint and pressure injection joint. And it can

be used repeatedly for 30 - 50 times.

A gas drainage hole packer is on the floor.

Gas drainage hole packer.

Gas drainage hole packer with two holes.

Gas drainage hole packer has two holes, making it can inject water into coal bed and discharge gas.

Many gas drainage hole packers are on the floor.

Gas drainage hole packer products.

The function of gas drainage hole packer:

It can inject water into the coal bed which can release some gas. So it can reduce the gas content effectively.

The dust can be reduced by 80% if the water- flooding effect is good. So it can improve the workers' operation conditions greatly and prevent the dust explosion accident effectively.

The water can humidify the coal bed, which can prevent the auto- ignition of the coal.

It has good outburst prevention effect, and it can release stress and gas stress. So it can prevent unexpected accidents in coal cutting effectively.

It solves the gas overrun in the coal cutting and outburst prevention drilling process, which can prevent the outburst and explosion of coal and gas effectively.

The details of gas drainage hole packer:

Structure: gas drainage hole packer is composed of four parts: high pressure inflation rubber hose, steel tube, sliding seal joint and pressure injection joint. And the high pressure inflation rubber hose is made from high quality NR synthetic rubber, which is resistant to abrasion, weather, ozone and high pressure.

Sealing hole diameter: 25 mm - 155 mm.

Working pressure: 1 MPa - 6 MPa.

Safety value opening pressure: 0.4 MPa - 0.5 MPa.

Working flow: it can inject water 5 t - 8 t per hour, and the gas drainage volume depends on the concentration and pressure.

Sealing hole depth: 0.5 m - 3 m.

Hose inflation coefficient: 60% - 100% .

Inflatable area: 24 mm - 160 mm.

Inner diameter: 10 mm - 102 mm.

Outside diameter: 24 mm - 128 mm.

Test pressure: 6 MPa - 30 MPa.

Burst pressure: 12 MPa - 40 MPa.

The specification of gas drainage hole packer

Hose code specification ID OD Sealing aperture Inflatable area Max pressure Test pressure Burst pressure

MPa MPa MPa

GDHP- 01 φ10 - 2 10 ± 0.5 24 ± 1.5 25 - 35 24 - 45 10 18 36

GDHP- 02 φ16 - 2 16 ± 0.5 30 ± 1.5 35 - 45 30 - 50 8 16 32

GDHP- 03 φ16 - 4 16 ± 0.5 36 ± 1.5 35 - 45 36 - 50 20 30 40

GDHP- 04 φ19 - 2 19 ± 0.5 36 ± 1.5 40 - 50 36 - 60 8 16 32

GDHP- 05 φ19 - 4 19 ± 0.5 40 ± 2.0 40 - 50 40 - 60 20 30 40

GDHP- 06 φ22 - 2 22 ± 0.5 39 ± 2.0 45 - 55 39 - 80 6 12 24

GDHP- 07 φ22 - 4 22 ± 0.5 45 ± 2.0 45 - 55 45 - 80 20 30 40

GDHP- 08 φ25 - 2 25 ± 0.5 33 ± 2.0 50 - 60 33 - 85 6 12 24

GDHP- 09 φ25 - 4 25 ± 0.5 48 ± 2.0 50 - 60 48 - 85 16 30 40

GDHP- 10 φ32 - 2 32 ± 0.5 50 ± 2.0 55 - 65 50 - 90 6 12 24

GDHP- 11 φ32 - 4 32 ± 0.5 50 ± 2.0 55 - 65 50 - 90 16 24 32

GDHP- 12 φ38 - 2 38 ± 0.5 55 ± 2.0 60 - 70 55 - 95 5 10 20

GDHP- 13 φ38 - 4 38 ± 0.5 60 ± 2.0 60 - 70 60 - 95 16 24 32

GDHP- 14 φ45 - 2 45 ± 0.5 63 ± 2.0 70 - 80 63 - 100 4 8 16

GDHP- 15 φ45 - 4 45 ± 0.5 69 ± 2.0 70 - 80 69 - 100 16 24 32

GDHP- 16 φ51 - 2 51 ± 0.5 69 ± 2.0 85 - 95 69 - 110 4 8 16

GDHP- 17 φ51 - 4 51 ± 0.5 75 ± 2.0 85 - 95 75 - 110 16 24 32

GDHP- 18 φ64 - 2 64 ± 0.5 84 ± 2.0 95 - 105 84 - 120 3 6 12

GDHP- 19 φ64 - 4 64 ± 0.5 90 ± 2.0 95 - 105 90 - 120 8 12 16

GDHP- 20 φ76 - 2 76 ± 0.5 94 ± 2.0 105 - 115 94 - 130 3 6 12

GDHP- 21 φ76 - 4 76 ± 0.5 99 ± 2.0 105 - 115 99 - 130 8 12 16

GDHP- 22 φ89 - 2 89 ± 0.5 109 ± 2.0 125 - 135 109 - 140 3 6 12

GDHP- 23 φ89 - 4 89 ± 0.5 115 ± 2.0 125 - 135 115 - 140 8 10 18

GDHP- 24 φ102 - 2 102 ± 0.5 122 ± 2.0 145 - 155 122 - 160 3 6 12

GDHP- 25 φ102 - 4 102 ± 0.5 128 ± 2.0 145 - 155 128 - 160 6 10 16

We can manufacture gas drainage hole packers according to customers' requirements.

Application of gas drainage hole packer:

Gas drainage hole packer is used to inject water into coal bed, which can reduce the gas content and dust.

It is used to let out gas.


Company Contact:


  • Phone: 863185106165

  • Address: Jing County, Hengshui City, Hebei Province, China., hengshui, China

  • Email: Email


Published date: January 12, 2016 -

  • Business Description: Hebei Huayu Special Rubber Co., Ltd. is the professional manufacturer of inflatable packer products in China. We pay special attention to research and development, which can help us manufacture high quality and advanced products. And it also helps us win high reputation among our customers. This is why we have established long-term cooperation relationship with many large companies.

    Our inflatable packer products have four kinds: consolidation coal hole packer, water injection hole packer, gas drainage hole packer and water use of bottom hole circulation grouting plug. The first three are mainly used in mine construction and production. And the last one is mainly used in water conservancy projects.If there is any need please contact us via sales@inflatablepackers.org

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