Copy of `Mira Showers - Glossary of Terms`

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Mira Showers - Glossary of Terms Category: General technical and industrial > Showers Date & country: 15/12/2007, UK Words: 149

R.C.D.
A Residual Current Device measures the electrical current on the outgoing live and return neutral conductors. If any current imbalance exceeds the set trip value it turns off the power supply. Do not confuse with M.C.B.

R.C.D.
A Residual Current Device measures the electrical current on the outgoing live and return neutral conductors. If any current imbalance exceeds the set trip value it turns off the power supply. Do not confuse with M.C.B.

R.A.C.
See Wall Outlet Connector.

R.C.C.B
Residual Current Circuit Breaker. See R.C.D.

R.C.C.B.
Residual Current Circuit Breaker. See R.C.D.

M.C.B.
A Miniature Circuit Breaker is an electrical circuit protection device used as an alternative to rewireable and cartridge typefuses. It trips out when too much current flows in the circuit, typically under fault conditions. Do not confuse with R.C.D.

M.C.B.
A Miniature Circuit Breaker is an electrical circuit protection device used as an alternative to rewireable and cartridge type fuses. It trips out when too much current flows in the circuit, typically under fault conditions. Do not confuse with R.C.D.

E.L.C.B
Earth Leakage Circuit Breaker. See R.C.D.

E.L.C.B.
Earth Leakage Circuit Breaker. See R.C.D.

B-bir
Built-in rigid - A built-in mixer control with a rigid shower head.

B-biv
Built-in variable - A built-in mixer control with an adjustable position shower handset and slidebar.

B.E.A.B.
British Electrotechnical Approvals Board.

B.E.A.B.
British Electrotechnical Approvals Board.

Wrap-over seat
The WC seat is designed with a lid that 'wraps over' the seat ring producing a stylish, easy-to-clean, comfortable design.

Water Jacketed Tube Heater
See thermal storage hot water system.

Water Fittings
Includes pipes, taps, ferrules, valves, cisterns, mixing valves and similar apparatus used in connection with the supply of water within a building.

Wall Outlet Connector
Wall mounted device to enable a flexible shower hose to be connected to concealed pipework.

Warning Pipe
An overflow pipe positioned so that its outlet is in a conspicuous position so that the discharge can be readily seen.

Wall hung
The WC cistern is concealed behind a wall or inside fitted furniture and the pan juts out from the wall, above the floor. Basins and bidets can also be wall hung. This makes for a clean, minimal look, as well as for easy cleaning. This is a European look which is becoming more popular in the UK.

Wall Bracket
Fixed device for holding hand showers.

Wall Elbow
See Wall Outlet Connector.

Vitrification
Indicates the degree of porosity to water of a piece of bathroom sanitaryware.

Wall Bar
A vertical rail assembly to allow height adjustment of a hand shower.

Vent Pipe
An uninterrupted safety pipe which allows air or expansion of water within a hot water system to escape to atmosphere.

Upstream
In the opposite direction to flow towards a given point of reference (Against the flow of water from a given point of reference).

Vanity basin
A fitted basin which is completely surrounded by a counter top.

Twin Pump
A pump with two independent inputs and outputs typically used for boosting both hot and cold supplies to a shower mixer and/or other terminal fittings (Two pumps can be used in place of a twin pump).

Transformer
An Electrical device for converting mains voltage to low voltage.

Twin Ended Pump
See Twin Pump.

Twin Impeller Pump
See Twin Pump.

Three hole mixer taps
Separate hot and cold handles blend water through a central spout.

Thermostatic Mixing Valve
A device which mixes hot and cold water and compensates for variations in the temperature and, or pressure of the incoming water supplies, to maintain a selected blend temperature.

Thermal Storage Hot Water System
A hot water system where cold mains pressure water is heated (instantaneously) as it passes through a heat exchanger surrounded by a stored volume of hot water.

Strainer
A screen to prevent debris from entering a water fitting.

Supply Pipe
A pipe conveying mains cold water around the building.

Supply Stop Valve
A valve used to isolate the mains cold water supply within a building.

Solenoid Valve
An electrically operated valve giving either no flow or full flow.

Standing Pressure
See Static Pressure.

Static Pressure
The water pressure existing at a fitting when no flow is taking place.

Slide Bar
See Wall Bar.

Single Outlet Pump
See Single Pump.

Single Pump
A pump used for drawing water from a mixing valve for delivery to a shower.

Single lever taps
A single monobloc tap with a lever handle controls both water flow and temperature.

Single flow taps
Hot and cold supplies come ready mixed from a single spout.

Showering Station
See Wall Bracket.

Single Ended Pump
See Single Pump.

Single Ended Pump
See Single Pump

Shower Head
Any device designed to produce a spray pattern.

Shower Hose
A flexible pipe that connects between the shower head and the shower control.

Servicing Valve
A valve for shutting off the flow of water in a pipe connected to a water fitting to facilitate the maintenance or servicing of that fitting.

Running Pressure
See Dynamic Pressure

Semi-recessed basin
A fitted basin which is 'semi-recessed' into a vanity unit or a range of units. May be more comfortable to bend over than a fully recessed vanity basin.

Right Angle Connector
See Wall Outlet Connector.

Riser Rail
See Wall Bar.

Running Pressure
See Dynamic Pressure.

Quarter turn taps
Taps which can be turned on full by rotating the handle just 90 degrees.

Recessed
See Built-in.

Pump Hose
A flexible pipe that connects the pump to rigid pipework.

Pressure Relief Device
Safety device fitted to prevent excessive pressure building up within an electric shower heater.

Pressure Relief Valve
Spring loaded relief valve fitted to cold supply on unvented systems to relieve excess pressure safely to atmosphere.

Pressure Compensating
See Pressure Balancing Mixing Valve.

Pressure Balancing Mixing Valve
A pressure balancing compensatory shower mixer valve designed to maintain a constant shower temperature under variable inlet pressures but maintained inlet temperatures.

Pressure Accumulator
A vessel which contains a device either to accommodate thermal expansion of water or to absorb the pressure shock waves of water hammer.

Pressure Accumulator
A pressure vessel inside which is fitted a bladder to accommodate thermal expansion of water or alternatively to absorb the pressure shock waves of water hammer.

Power Shower
A power shower features a pump and integrated shower control and requires a low pressure cistern fed supply of stored hot and cold water.

Porcelain enamelled steel bath
The ultimate in durability and rigidity - and guaranteed for 25 years. (UK and Ireland) Choose from standard or heavy gauge.

Outlet Pump
See single pump.

Parking Bracket
See Wall Bracket.

Open Outlet Flow Rate
Maximum potential flow rate from mixing valve without shower fittings attached.

Non-Return Valve
See Check Valve.

Offset corner bath
A design with one side longer than the other. Useful when a standard corner bath would be too large for the space available.

Negative Head
If the cistern is below the level of the shower head a gravity flow of water will not occur. A pump with special switching can be used to obtain a flow of water.

Multi Point
An instantaneous water heater which can supply water to more than one outlet, but not usually simultaneously.

Monobloc taps
Hot and cold water are mixed and delivered through a single spout.

Mixer Shower
A mixer shower works by mixing together hot and cold water to the desired temperature - ideal for homes with an ample supply of hot water.

Maintained Pressure
See Dynamic Pressure.

Manual Mixing Valve
A device which mixes hot and cold water but does not compensate for variations in the temperature or pressure of the incoming water supplies and needs to be adjusted manually.

Low level - High level WC
The cistern and WC pan are separated by a flush pipe and the cistern is fixed either high on the wall or (relatively) low.

Integrated Power Showers
See All-in-One Power Showers.

Integral Power Shower
An integral power shower features a pump and integrated shower control and requires a low pressure cistern fed supply of stored hot and cold water.

Insulation Resistance
The effectiveness of the electrical insulation between current carrying conductors and earth.

Instantaneous Gas Water Heater
An appliance which heats water on demand whilst the water is passing through it.

Instantaneous Electric Shower
A shower that electrically heats the water whilst the water is passing through it.

Inlet Pump
See Twin Pump.

Instantaneous Electric Shower
An instantaneous electric shower draws water directly from a cold water supply and heats it as it is used, so you don't need to have a stored hot water supply.

Impeller
The internal part of the pump that is driven by the motor, and is used to move the water.

Hot Water Cylinder
Means a cylindrical closed vessel capable of containing water under pressure greater than atmospheric.

Hose Restrainer
A device which restrains a shower hose to prevent immersion of the handshower.

Hose Retaining Ring
See Hose Restrainer.

Handset Holder
See Wall Bracket.

Header Tank
See Cold Water Storage Cistern.

Hand Shower
A showerhead attached to a flexible shower hose also termed a shower handset.

Handset
See Hand Shower.

Fused Spur
A branch off an electrical ring main to a double pole switched connection box fitted with a fuse to enable the connection of a fixed electrical appliance.

Free Outlet Flow Rate
See Open Outlet Flow Rate.

Flow Switch
Electro mechanical device that senses a small flow of water and energises an electrical contact.

Flush Fit
See Built-in.

Flow Restrictor
A device with no moving parts which restricts flow. Unlike a flow regulator it does not keep a constant flow when the supply pressure varies.

Flow Regulator
A device with moving parts which responds to variable inlet pressures to control flow at a reasonably constant rate. These are subdivided into two types: a) Fixed â€` manufactured in a range of predetermined flow rate settings. b) Variable â€` manually adjustable to provide different flow rate settings.

Flow Limiter
See Flow Regulator.