Product Details

Use: Coal injection, dust-fall, coal pressure reduction, coal-crack, methane drainage, etc.

Structure: It is made of high pressure expansion hose, safety valve, and rapid-acting coupling.

Hole-sealing diameter: 30~120mm(also can be processed according to customers' needs )

Working pressure: 1-8MP(processed according to the customers' needs)

Working flow: 4-4.5 tons of water per hour

Depth of hole-sealing: 1m-8m

Type Specification	ID (mm)	OD (mm)	Hole Radius(mm)	Explosion range under the normal condition(mm)	Work Pressure(Mpa)	Test Pressure(Mpa)	Burst Pressure(Mpa)
φ10-2	10±0.5	24±1.5	30	45	10	18	36
φ16-2	16±0.5	30±1.5	40	50	8	16	32
φ16-4	16±0.5	36±1.5	40	50	20	30	40
φ19-2	19±0.5	36±1.5	45	60	8	16	32
φ19-4	19±0.5	40±2.0	45	60	20	30	40
φ22-2	22±0.5	39±2.0	50	80	6	12	24
φ22-4	22±0.5	45±2.0	50	80	20	30	40
φ25-2	25±0.5	33±2.0	55	85	6	12	24
φ25-4	25±0.5	48±2.0	55	85	16	30	40
φ32-2	32±0.5	50±2.0	60	90	6	12	24
φ32-4	32±0.5	50±2.0	60	90	16	24	32
φ38-2	38±0.5	55±2.0	65	95	5	10	20
φ38-4	38±0.5	60±2.0	65	95	16	24	32
φ45-2	45±0.5	63±2.0	75	100	4	8	16
φ45-4	45±0.5	69±2.0	75	100	16	24	32
φ51-2	51±0.5	69±2.0	90	110	4	8	16
φ51-4	51±0.5	75±2.0	90	110	16	24	32
φ64-2	64±0.5	84±2.0	100	120	3	6	12
φ64-4	64±0.5	90±2.0	100	120	8	12	16
φ76-2	76±0.5	94±2.0	110	130	3	6	12
φ76-4	76±0.5	99±2.0	110	130	8	12	16
φ89-2	89±0.5	109±2.0	130	140	3	6	12
φ89-4	89±0.5	115±2.0	130	140	8	10	18
φ102-2	102±0.5	122±2.0	150	160	3	6	12
φ102-4	102±0.5	128±2.0	150	160	6	10	16