Hydrants And Water Supplies

Front 1

British standards for hydrants

Back 1

.65mm round threat outlet

. minimum water flow 2000 litres per minute at pressure of 1.7 bar

. Opens anti clockwise

Front 2

How do you recognise and interpret information on a hydrant plate?

Back 2

Single , double and directional

Found on walls, gates, sides of buildings and posts.

Number between the arms of the 'H' is size in mm or inches.

Number between legs of 'H' is distance from the hydrant to plate in feet or meters.

Front 3

What equipment makes up hydrant gear?

Back 3

.Double headed standpipe

.Hydrant key

.Hydrant bar

Front 4

How do you set up a hydrant?

Back 4

.Called 'setting in to' or 'shipping in to hydrant'

.always use hydrant bar to lift cover

.always connect standpipe before opening valve. Always close the valve before attempting to remove standpipe.

.when cover is removed, leave in a safe place. Once standpipe and key are connected, lay cover between them over part of the pit opening. If night time, consider illuminating hazard.

.replace cover as soon as possible and never allow it to drop on to the frame,as it could crack.

.all new hydrants are screw down and open anti-clockwise but some older hydrants may open clockwise.

.hydrants should be opened and closed slowly and fully

Front 5

Points about screw on leak detection device

Back 5

.Hydrants should not be tested.

.If hydrant required for operational use device should be shut down, unscrewed and removed.

.Device should not be refitted

.left at bottom of pit

.water office should be informed on return to the ststion

Front 6

Points on magnetic leak detection device

Back 6

.Does not need hydrant valve to be open in order to work.

.Can be removed to allow hydrant to be used.

.can be replaced and reused once hydrant is shut down

Front 7

How often should hydrants be tested

Back 7

.Visual inspection every year.

.tested every four years.

Tests carried out between April and September