Plumbing Glossary

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Bonnet: A bonnet is the body that the tap spindle runs through. The oring (or orings) on the spindle seal against the internal of the bonnet to prevent water coming out of the top of the tap handle. A bonnet is also sometimes referred to as a stuffing box.

Breech: The breech is the centre to centre measurement between the two wall water points or two basin taps.

BSP: British Standard Pipe threads and sizes are the mainstay measurements for the majority of global plumbing systems. We've created a page dedicated to more information on this here: What are BSP thread sizes?

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Cross Handle: A typical question when narrowing down a selection is whether you would prefer a cross handle or a lever handle. A cross handle as its name implies has four spokes, Roulette, Heritage, Bellevue and Torrens Capstan styles are all examples of cross handles.

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Hob Mounted:Tapware is mounted off the kitchen bench, sink top or off the basin with water inlet points under the bench.

Hydroseal: A premium quality brass jumper valve that has an o-ring on the bottom face that creates a seal with the tap seat when the tap is closed. They are standard on all of our Rapid Action tapware and now also standard on all of our jumper valve tapware.

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Rapid Action: Rapid Action is our 1/4 Turn Spindle. Full information about this mechanism is available with our Rapid Action FAQ.

Reach: The reach is the centre to centre measurement of a spout or outlet from the wall to the centre of the aerator. Or the centre of the outlet base to the centre of the aerator.

S

SKU: Stock Keeping Unit.

Stuffing Box: please see Bonnet.

T

Top Assembly (or Top Half): A tap has a top section and a bottom section. The top section generally comprises of the handle, spindle, stuffing box (also called a bonnet), flange (depending on the tap style) and the jumper valve. The bottom section is the stop body. The stop body has the water inlets and outlets, as well as the tap seat. The tap seat is the surface inside the stop body that the jumper valve seals against when the tap is turned off. The Top Assembly (or Top Half) is the top section.

Trouble Ring: Some plumbing situations such as deep seats or irregular wall depths can leave a gap between the tap flange and the wall. Trouble rings are pieces that fill the gap. Some standard ones are available for selection here but more often than not are made to order to solve the particular gap size.

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