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 designof bibcock
fixed disc
‘O’ ring
washer
backnutPillar tap
circlip
non-risingspindle
Cold water – Taps and Valves
‘O’ ringwasher crutch
headrising spindle packing gland
nutheadgear
jumper body
washer
Packing gland
wedge shaped gatenon-rising spindle
wheel headseating
Fullway gatevalve
‘O’ rings
valve open
valve closed
Cold water – Taps and Valves
StoptapDrain off tap
Service valve
Quarter turn head
Cold water – Taps and Valves
Hot Supply Cold Supply
Bi Flow OutletBi 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
Diaphragm Ball Valve
Equilibrium Ball Valve
Portsmouth Pattern Ball Valve