Expansion rubber hose for coal mine

I. Structure
Expansion rubber hose for coal mine is composed of inner rubber layer, reinforcement layer, middle rubber layer and outer rubber layer.

II. Function

When the packer is subject to internal positive pressure, the hose length becomes shorter while diameter is enlarged to expansion state, to realize packing effect.

III.Use
Expansion rubber hose for coal mine is applicable to water injection and dedusting to coal seam, engineering construction,and underground leakproof construction.

IV. Performance indicators

Specifications of expansion rubber hose for coal mine are in compliance with: Q/HOY08-2011.

Specifications of expansion rubber hose for coal mine are in compliance with: Q/HOY06-2011.