9.1 Valves

Devices used to control the flow of water, regulate pressures, release air, prevent back flow etc

(a)Sluice or gate or cutoff valve

(b) Reflux or check or non-return valve

(c) Safety or pressure relief valve

(d) Air valve or air relief valve

(e) Drain or scour or blow off valve : Ordinary sluice valve to remove silt deposit

(f) Butterfly valve and globe valve

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FIRE HYDRANT:

Devices used for tapping water from mains for the fire extinguishing, street washing,watering gardens, flushing sewer lines etc.

Provided at all road junctions & every 100 – 300 m apart.

For tapping water, the hose is connected to the hydrant and if necessary the engine isused to increase head.

It should be cheap, easily connectable & detachable to the hose pipe and able to givesufficient water. It may be of post type or flush type.

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Fittings

Manesh Malla

Manesh Malla

Manesh Malla

Manesh Malla

Manesh Malla

Manesh Malla

Manesh Malla

Manesh Malla