Presentation on theme: "Presentation on Taps & Valves Used in Cold Water Systems"— Presentation transcript:
1 Presentation on Taps & Valves Used in Cold Water Systems PLUMBINGPresentation on Taps & Valves Used in Cold Water Systems
2 Cold water – Taps and Valves Quarter turn ceramic disc pillar tap Screwdown bibtapQuarter turn ceramic disc pillar tap
3 Cold water – Taps and Valves ‘O’ ringwasherbacknutPillar tapcirclipnon-risingspindleAutomatic closing devicewasherSupatap designof bibcockfixed disc
4 Cold water – Taps and Valves ‘O’ ringwashercrutch headrising spindlepacking gland nutheadgearjumperbodywasherPacking glandDrain off tapStoptapwedge shaped gatenon-rising spindlewheel headseatingQuarterturnheadvalve openvalve closed‘O’ ringsService valveFullway gatevalve
5 Cold water – Taps and Valves Bi Flow Outlet SectionsBi Flow OutletHot SupplyCold SupplyThis type of tap is suitable for unbalanced pressure between the hot and cold water supply.
6 Cold water – Taps and Valves Mixed OutletOutletinsectionHot SupplyCold SupplyA 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
7 Used in Cold Water Systems Float Operated ValvesUsed in Cold Water Systems
8 Cold water – Storage cistern requirements – Installation of cistern Cistern control valvesThe 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.
9 Cold water – Storage cistern requirements – Installation of cistern 9