Presentation on theme: "Presentation on Taps & Valves Used in Cold Water Systems PLUMBING."— Presentation transcript:
Presentation on Taps & Valves Used in Cold Water Systems PLUMBING
Quarter turn ceramic disc pillar tap Cold water – Taps and Valves Screwdown bibtap
Automatic closing device washer Supatap design of bibcock fixed disc ‘O’ ring washer backnut Pillar tap circlip non-rising spindle Cold water – Taps and Valves
‘O’ ring washer crutch head rising spindle packing gland nut headgear jumper body washer Packing gland wedge shaped gate non-rising spindle wheel head seating Fullway gatevalve ‘O’ rings valve open valve closed Cold water – Taps and Valves Stoptap Drain off tap Service valve Quarter turn head
Cold water – Taps and Valves Hot SupplyCold Supply Bi Flow Outlet Bi Flow Outlet Sections This type of tap is suitable for unbalanced pressure between the hot and cold water supply.
A single check valve must be fitted to the cold water inlet if the supply is taken of the main. This type of mixing tap should only be used when BOTH supplies are at equal pressure Cold SupplyHot Supply Mixed Outlet Outlet in section Cold water – Taps and Valves
Float Operated Valves Used in Cold Water Systems
Cold water – Storage cistern requirements – Installation of cistern Cistern control valves The water regulations require that a pipe supplying water to a storage cistern must be fitted with an effective adjustable shut off device. What device do you think they are referring to ? …. The device used on most domestic applications is called a float operated valve and we shall look at the various types now.
Cold water – Storage cistern requirements – Installation of cistern