The Metropolitan (Thames) valve key designed to operate hydrant valves can be supplied in three socket sizes. These are listed below:
Standard Socket 35mm square socket (Designed to fit valves on pipe sizes of 2” – 12”)
Jumbo Socket 42mm square socket (Designed to fit valves on pipe sizes of 14” – 20”)
Euro Socket 48/50mm square socket (Designed to fit valves on pipe sizes of 27” – 48”)
The deep socket valve keys are manufactured from EN8 material. The deep reach socket suits new and old valve spindles. Similar valve keys may not provide the facility of being able to fit both new and old valve spindles due to their design differences.
The different valve keys can be referenced in the table below:
Please note: Depending upon valve manufacture there can be an overlap between Jumbo and Euro fitments. Therefore it is beneficial that sizes are checked prior to order. This is best achieved by measuring the top of the valve spindle.
Description |
Length |
Socket Size |
Pipe Size |
Part No. |
Standard 35mm Socket Sizes |
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Heavy Duty Valve Key (Short Socket) |
30” |
Standard 35mm (Short Socket) |
2"-12" |
11731 |
Heavy Duty Valve Key (Deep Socket) - EN8 material |
30” |
Standard 35mm (Deep Socket) |
2"-12" |
11731EN8 |
Heavy Duty Valve Key (Deep Socket) - EN8 material |
60” |
Standard 35mm (Deep Socket) |
2"-12" |
11731EN85 |
Heavy Duty Valve Key (Deep Socket) - EN8 material |
72” |
Standard 35mm (Deep Socket) |
2"-12" |
11731EN86 |
Jumbo 42mm Socket Sizes |
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Heavy Duty Valve Key (Short Socket) |
30” |
Jumbo 42mm (Short Socket) |
14” – 24” |
11732 |
Heavy Duty Valve Key (Deep Socket) - EN8 material |
30” |
Jumbo 42mm (Deep Socket) |
14” – 24” |
11732EN835 |
Heavy Duty Valve Key (Deep Socket) EN8 material |
35” |
Jumbo 42mm (Deep Socket) |
14” – 24” |
11732EN8 |
Heavy Duty Valve Key (Deep Socket) - EN8 material |
60” |
Jumbo 42mm (Deep Socket) |
14” – 24” |
11732EN85 |
Euro 48/50mm Socket Sizes |
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Heavy Duty Valve Key (Short Socket) |
30” |
Euro 48/50mm (Short Socket) |
27” – 48” |
11733 |
Heavy Duty Valve Key (Deep Socket) - EN8 material |
35” |
Euro 48/50mm (Deep Socket) |
27” – 48” |
11733EN8 |
Heavy Duty Valve Key (Deep Socket) - EN8 material |
60” |
Euro 48/50mm (Deep Socket) |
27” – 48” |
11733EN85 |