Water Injection Hole Packer

Water injection hole packer is used to inject water to coal, which can reduce the gas content and dust. As a result, it can improve the safety coefficient of mine construction and production greatly. It is composed of high pressure inflation rubber hose, safety value and rapid-acting coupling. And it can be used repeatedly for 30 - 50 times.

The function of water injection 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.

· The water is injected in high pressure, which can crush the coal. So it can lessen initiating explosive devices, lower the cost and increase

the workers' sense of safety.

· Breaking coal with water injection hole packer can prevent the explosion of coal and gas effectively.

The details of water injection hole packer:

· Structure: water injection hole packer is composed of high pressure inflation hose, safety value and rapid-acting coupling. And high pressure inflation 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 (changeable according to customers' requirements).

· Working pressure: 1 MPa - 8 MPa (changeable according to customers' requirements).

· Safety value opening pressure: 0.4 MPa - 0.5 MPa.

· Working flow: it can inject water 4 t - 5 t per hour.

· Sealing hole depth: 1 m - 8 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.

specification	ID	OD	Sealing aperture	Inflatable area	Max pressure	Test pressure	Burst pressure
	mm	mm	mm	mm	Mpa	Mpa	Mpa
φ10 - 2	10 ± 0.5	24 ± 1.5	25-35	25-48	10	18	36
φ16 - 2	16 ± 0.5	30 ± 1.5	35-45	30-50	8	16	32
φ16 - 4	16 ± 0.5	36 ± 1.5	35-45	36-50	20	30	40
φ19 - 2	19 ± 0.5	36 ± 1.5	40-50	36-60	8	16	32
φ19 - 4	19 ± 0.5	40 ± 2.0	40-50	40-60	20	30	40
φ22 - 2	22 ± 0.5	39 ± 2.0	45-55	39-80	6	12	24
φ22 - 4	22 ± 0.5	45 ± 2.0	45-55	45-80	20	30	40
φ25 - 2	25 ± 0.5	33 ± 2.0	50 - 60	33-85	6	12	24
φ25 - 4	25 ± 0.5	48 ± 2.0	50-60	48-85	16	30	40
φ32 - 2	32 ± 0.5	50 ± 2.0	55-65	50-90	6	12	24
φ32 - 4	32 ± 0.5	50 ± 2.0	55-65	50-90	16	24	32
φ38 - 2	38 ± 0.5	55 ± 2.0	60 - 70	55 - 95	5	10	20
φ38 - 4	38 ± 0.5	60 ± 2.0	60 - 70	60-95	16	24	32
φ45 - 2	45 ± 0.5	63 ± 2.0	70 - 80	63-100	4	8	16
φ45 - 4	45 ± 0.5	69 ± 2.0	70 - 80	69-100	16	24	32
φ51 - 2	51 ± 0.5	69 ± 2.0	85 - 95	69-110	4	8	16
φ51 - 4	51 ± 0.5	75 ± 2.0	85 - 95	75-110	16	24	32
φ64 - 2	64 ± 0.5	84 ± 2.0	95 - 105	84-120	3	6	12
φ64 - 4	64 ± 0.5	90 ± 2.0	95 - 105	90-120	8	12	16
φ76 - 2	76 ± 0.5	94 ± 2.0	105 - 115	90-130	3	6	12
φ76 - 4	76 ± 0.5	99 ± 2.0	105 - 115	94-130	3	6	12
φ89 - 2	89 ± 0.5	109 ± 2.0	125 - 135	109-140	8	12	16
φ89 - 4	89 ± 0.5	115 ± 2.0	125 - 135	115-140	8	10	18
φ102 - 2	102 ± 0.5	122 ± 2.0	145 - 155	122-160	3	6	12
φ102 - 4	102 ± 0.5	128 ± 2.0	145 - 155	128-160	6	10	16

Application of water injection hole packer:

· Water injection hole packer is used to inject water into coal bed, which can reduce gas content and dust.

· It can prevent the coal auto-ignition.

· It can lower the cost and increase workers' sense of safety.

· It can prevent explosion accident effectively.

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