TRAPS AND ITS TYPES USED IN A BUILDING

TRAPS AND ITS TYPES USED IN A BUILDING

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  WELCOME FROM: BISHAL KHANAL YAMINISHARMA PRAGYA GUPTA PRIYAM GOYAL ANAMIKA GUPTA
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  PLUMBING
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  WHAT IS PLUMBING •Plumbing is the system of pipes, drains fittings, valves, valve assemblies, and devices installed in a building for the distribution of water for drinking, heating and washing and the removal of waterborne wastes Water supply • Rain water • Rivers • Dams
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  TRAPS • A trapis a device which is used to prevent sewer gases from entering the buildings. Common Gases that Are Produced in a Sewage System oMethane oHydrogen Sulfide oNitrogen oCarbon Monoxide
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  A TRAP HASFOLLOWING FEATURES .Traps are an integral part of a modern sanitary system, •The traps should be of a self-cleansing pattern. • Traps for use in domestic waste should be convenient for cleaning. • A good trap should maintain an efficient water seal under all conditions of flow.
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  REQUIREMENTS OF GOOD TRAP: 1.IT SHOULD BE CAPABLE OF BEING EASILY CLEANED. 2. IT SHOULD BE EASILY FIXED WITH THE DRAIN. 3. IT SHOULD BE OF SIMPLE CONSTRUCTION. 4. IT SHOULD POSSESS SELF-CLEANSING PROPERTY. 5. THE INTERNAL AND EXTERNAL SURFACES SHOULD BE OF SMOOTH FINISH.
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  •Depending upon theshapes the traps are classified as: •P-Trap •Q-Trap •S-Trap •Some other kind of traps are: •NAHNI-Trap/FLOOR-Trap •GULLY-Trap •INTERCEPTING-Trap •GREASE-Trap •BOTTLE-Trap CLASSIFICATION OF TRAPS
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  P Trap • Thistrap is used with Indian water closet. • The traps are made from cast iron or UPV sheet. • This trap also has water seal and prevents entry of foul gases to the house.
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  S Trap • Thistrap is similar to P. trap and is used for fixing water closets in toilets. • The only difference between P trap and S trap is that P trap is used for outlet through the wall whereas S trap is used for outlet through the floor.
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  Q Trap • Thistrap is used in toilet under water closet. • It is almost similar to S trap and is used in upper storey other than ground floor.
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  FLOOR TRAP OR NAHINITRAP • This trap is provided in the floor to collect waste water from washbasin, shower, sink and bathroom etc. • These are available in cast iron or UPVC material and have removable grating (JALI) on the top of the trap. • The minimum depth of water seal should be 50 mm.
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  GULLY TRAP • Thesetraps are constructed outside the building to carry waste water discharge from washbasin, sinks, bathroom etc. and are connected to the nearest building drain/sewer so that foul gases from sewer do not come to the house.
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  INTERCEPTING TRAP • Thistrap is provided at the last main hole of building sewerage toprevent entry of foul gases from public sewer to building sewer. • It has a deep-water seal of 100 mm.
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  GREASE TRAP • Thistrap is a device to collect the grease contents of waste and can be cleaned from the surface. • This is generally used in food processing unit.
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  Bottle Trap • Thistrap is used below washbasin and sinks to prevent entry of foul gases.
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  LOSS OF TRAPSEALS caused • Evaporation • Capillary action • Momentum • Leakage • Wavering out • Compression or back pressure • Induced siphonage
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  EVAPORATION OCCUR WHENTRAP NOT BEING USED CAPILLARY ATTRACTION
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  WAVERING OUT
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  INDUCED SIPHONAGE SELF SIPHONAGE