Gravel Rubber Flanged Hoses

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Product Description

Sand & Gravel Rubber Flanged Hoses

Application
The hose is heavy duty robust in construction and used for suction and discharge of sand and water at a high pressures. The rubber inner lining is abrasion resistance of sand & gravel with woven fabric / nylon reinforcement and shall incorporate one or two galvanised wire helix embedded in layers of rubber compound.

Length

For hoses having 100 mm nominal bore the maximum length shall be 15 metres.
Above 100 mm nominal bore to 200 mm nominal bore the maximum length shall be 7.5 metres.
Above 200 mm to 300 mm nominal bore hoses maximum length shall be 6.0 metres.
The tolerance on the hose length shall be ±2%.

Working Pressure
Sand and Gravel Suction and Discharge hose suitable for maximum working pressure of 7, 10 and 15 Kg/Cm². The proof pressur test being 1.5 times of working pressure.

Construction

Lining: Soft inner rubber lining resistance to abrasion of sand and small sharp gravels.
Reinforcement: Shall consist of rubberised fabric / synthetic / nylon and will be strengthened with one/two G. I. wire helix embedded in layers of rubber compound. Embedded wire helix be closely spiralled over the nipples in case of builtin fittings.
Cover: Shall consist of a suitable rubber compound resistance to abrasion and ageing. Smooth or corrugated fabric wrapped finish.

End Connection
Plain / Enlarged / Builtin type coupling / Builtin rubber flanges.

Technical Specification

Nominal Bore Size		Bend Radius
NB Size (mm)	Tolerance Bore Size	Max W.P. 0.7 Mpa (mtr)	Max W.P. 1.0 Mpa (mtr)
100	±3	1.00	1.00
150	±3	1.40	1.60
200	±3	1.85	2.15
250	±3	2.30	2.70
300	±3	2.75	3.30