More Information on Straight Through Traps:
If your waste pipe is located directly below your pedestal bowl, at the floor, then this high quality trap is the perfect option. Suitable for domestic or professional use, this straight-through trap features a 76mm snare and 32mm seal, plus universal compression fittings which satisfy criteria BS 1451 and BS 1455. This product is fast and simple to fit, as it will not needing solvent welding. Made from tough, hard wearing plastics, it is a highly durable component that will help keep your bathroom working properly.
We supply a wide and extensive array of waste traps, such as anti-siphon units and universal flexible wastes, to fit programs from toilets to wet rooms and kitchen sinks to washing machines. All water using appliances and fixtures within a house needs a water trap at the waste pipe to give a water seal into the drains or atmosphere, this prevents smells, bacteria and insects entering the property. Most modern waste plumbing (apart from 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 utilised.
The dimensions quoted are the internal pipe dimensions (and also the waste outlet in the sink/basin/bath etc), the outer diameter of the pipework does vary between different manufacturers thus pipes and fitting may not be interchangeable. Among the most important aspects of waste water traps is the thickness of seal. Typically the waste pipe matches to the trap with a twist coupling (with a compression seal ring) or a push fit'O' ring coupling - there isn't much to pick between the two types.