“P” Floor Trap
This is a receptacle used to remove liquid effluent from building interior floor areas. It provides a receptacle for spills, wash down, and effluent to be collected and routed directly into the sanitary drainage piping system. A fixture trap (P shape section) in general must be self cleaning. The requirements for minimum seal for drain traps, minimum open area of grates and strainers, and mandatory inclusion of certain individual components for drains should be provided according to the standards (BS 5572:1978).
Dimension of P trap
References
BS 5572:1978 Code of practice for sanitary pipework.
ASTM A74: 1998 Standard Specification for Cast Iron Soil Pipe and Fittings.
ASTM A888-98e1 Standard Specification for Hubless Cast Iron Soil Pipe and Fittings for Sanitary and Storm Drain, Waste, and Vent Piping Applications