AIR HOSE, PNEUMATIC HOSE, ROCK DRILL HOSE
SPECIFICATIONS
IS : 446/1980 (Amalgamated revision of IS : 446/ 1968 covering both textile woven and braided construction) or IS 911.
IS 446/87 - TYPE I II & III
CONSTRUCTION
Air Hose, Pneumatic Hose Lining : Rubber lining shall be porosity, air-blisters and any other visible defects
Rock Drill Hose Lining : Rubber lining shall be free from resistant to oil mist.
Reinforcement : Shall be either woven fabric well rubberized on both sides or braided textile reinforcement with yarn, natural or synthetic or combination of both
Cover : The outer cover shall be of high tensile abrasion resistant compound
-
Availability of Sizes & Reinforcement Recommedation
- I.D. mm
- Type I
- Type II
- Type III
- Wov.
- Br.
- Wov.
- Br.
- Wov.
- Br.
- 5.0
- 2 Ply
- 1 Br.
- 2 Ply
- 1 Br.
- 3 Ply
- 1 Br.
- 6.3
- 2
- 1
- 2
- 1
- 3
- 1
- 8.0
- 2
- 1
- 3
- 1
- 3
- 1
- 10.0
- 2
- 1
- 3
- 1
- 4
- 1
- 12.5
- 2
- 1
- 3
- 2
- 4
- 2
- 16.0
- 2
- 1
- 3
- 2
- 4
- 2
- 20.0
- 3
- 1
- 4
- 2
- 5
- 2
- 25.0
- 4
- 2
- 5
- 2
- 6
- 3
- 31.5
- 4
- 2
- 5
- 3
- 6
- 3
- 38.0
- 4
- 2
- 5
- 3
- 7
- 3
- 50.0
- -
- -
- 6
- 3
- -
- -
50 mm & above sizes in Type I, II, III are supplied as per request.
Types
There are 3 types of hoses
TYPE I : Air hose for a working pressure 7 Kgf/cm2
TYPE II : Pneumatic hose for a working pressure 10 Kgf/cm2
TYPE III : Rock Drill hose for a working pressure of 14 Kgf/cm2
Test
The hoses will undergo hydraulic test as per following,
TYPE I : Air Hose, Minimum bursting pressure 28 Kgf/cm2
TYPE II : Pnuematic Tool Hose : Minimum bursting pressure 40 Kgf/cm2
TYPE III : Rock Drill Hose : Minimum bursting pressure of 56 Kgf/cm2
Applications
These hoses are used for various applications like general construction work, road building, tunneling, in construction jobs used with chipping, grinding and riveting appliances; in Service type inflation, for rock drilling applications in mine, and quaries etc.