More Information on Bath Traps:
The 'bath' trap (sometimes known as a shallow trap) is normally fitted to showers and baths where there's limited space. Where fitted into a tub, a banjo connector is normally fitted over it for the tub overflow.
We supply a wide and comprehensive range of bath traps, including anti-siphon units and universal bath traps, to match applications from toilets to wet rooms and kitchen sinks to washing machines. All water using appliances and fixtures within a house needs a water trap in the waste pipe to offer a water seal into the drains or atmosphere, this prevents smells, bacteria and insects entering the property.
Most modern waste plumbing (besides W.C.s) utilise either 32mm (1.25 inch) (for hand basins) or 40mm (1.5 inch) (for sinks, bathrooms, showers, dishwashers, washing machines) plastic pipe and fittings (such as traps); pipe runs over 2m (6 ft ) can utilise 50mm (2 inch) diameter pipe to prevent siphon effect once the waste is used.
The sizes quoted are the inner pipe measurements (and also the waste outlet from the sink/basin/bath etc), the outer diameter of the pipework does vary between different manufacturers thus pipes and fitting may not be interchangeable.
One of the most important facets of waste water traps is the depth of seal. Typically the waste pipe matches to the trap by a twist coupling (using a compression seal ring) or a push fit 'O' ring coupling - there is not much to pick between the two types.