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Download Catalogue 906 Loose Jumper
Download Catalogue 511 Globe Valve
Download Catalogue 213 Gate Valve
Gate Valves
Application
Gate Valves function is to isolate or sectionalise any piece of equipment or length of pipeline in water or sewage systems.
It is normal practice, therefore, to use them on a suction and delivery branches of pumps at regular intervals along a pipeline, at branches underneath air valves, on bye-passes, on drains or washouts etc.
They have a low head loss coefficient, hence are ideal on pump installations to maximise system efficiency.
| Valve Bore mm | Handwheel Dia mm | Unbalanced Head in Metres | ||
|---|---|---|---|---|
| Handwheel Operation | Tee Key Operation | |||
| 80 | 200 | 140 | 160 | 160 |
| 100 | 250 | 105 | 160 | 160 |
| 150 | 250 | 50 | 160 | 160 |
| 200 | 300 | 40 | 73 | 140 |
| 250 | 400 | 40 | 50 | 93 |
| 300 | 400 | 30 | 35 | 65 |
| 350 | 533 | 12 | 17 | |
| 400 | 610 | 10 | 13 | |
| 450 | 686 | 8 | 10 | |
| 500 | 686 | 7 | 8 | |
| 600 | 762 | 3 | 3 | |
1. Max input effort is 50kg ( 25kg Push/Pull )
2. Tee Key has 0.7m arm (0.6m effective length )
3. For greater unbalanced head it is necessary to use a bypass or fit totally enclosed units having integral ball bearing collar.
