Chrome Bathroom Concealed Valve WRAS 1 /2 / 3 WAY Round Square Cross Thermostati Thermostatic Solid Brass, WRAS Approved, TMV2 Approved

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Seller: Top-Rated Seller cheeky_bathrooms ✉️ (14,812) 97.6%, Location: Wrexham , GB, Ships to: GB, Item: 174498117728 Chrome Bathroom Concealed Valve WRAS 1 /2 / 3 WAY Round Square Cross Thermostati.

Chrome Bathroom Concealed Valve WRAS 1 /2 / 3 WAY Round Square Cross Thermostatic

A shower valve performs two basic functions, it controls the temperature and the flow of the water in your shower.

It controls the temperature by mixing hot and cold water from your hot and cold-water supplies in different proportions and generally has a single control to do this with.

It controls the flow by controlling the overall rate of flow of the water and directing that water to one or more outlets using flow controls and/or diverters. A flow control supplies water to a single outlet and can finely control the rate of flow from full off to full on. A 2-way diverter supplies water to two separate outlets by allowing switching between the two, only one can be on at a time.

Each outlet from the valve supplies water to each part of your shower that needs it. Shower valves usually have 1, 2 or 3 outlets. So, with a 1 outlet shower valve you could operate, for example, an overhead shower. With a two-outlet valve you could add, for example, a shower slide rail as well. and with a 3-outlet valve you could operate an overhead shower a slide rail shower and body jets.

The Four Main Kinds of Shower Valve

Twin Shower Valves - One Way

Twin shower valves have two controls. Twin one-way valves can supply a single shower function, for example an overhead shower or a small shower on a slide rail but not both. One of the two controls is a temperature control the other controls the rate of flow from full on to full off.

Twin Shower Valves - Two Way

A twin two-way shower valve also has two controls. Twin two way valves can supply two different shower functions but not at the same time, that is, it enables you to switch the water from one outlet to another, for example from the overhead shower to a smaller shower on a slide rail. The valve has a temperature control just like the twin one-way valve but instead of a flow control it has a diverter which switches the water between one outlet and the other. The diverter can switch between shower functions, but it can't finely control the rate of flow, each outlet is either full on or full off.

Triple Shower Valves - Two Way

A triple two-way outlet supplies two shower functions/outlets. Unlike the twin two-way shower however both outlets are controlled independently so both shower functions can be on at the same time. Triple valves have three controls. On the triple two-way valve one control is a temperature control and the others are both flow controls one controlling the flow of water to one outlet and the other to the other outlet.

Triple Shower Valves - Three Way

A triple three-way outlet supplies three shower functions/outlets. Again, it has a single temperature control. Of the other controls one is a two way diverter which switches water flow between one of two outlets (or it can be set so that both are off) and the second is a flow control which independently controls the flow from full off to full on of another third outlet. Typically you might use such a valve for controlling a shower set up which has an overhead drencher (large shower head), a detachable hand held smaller shower head on a slide rail and a set of body jets (the body jets all being supplied via a single outlet from the valve). If body jets were plumbed into the flow control outlet on the valve and the overhead shower and slide rail into the diverter then you could have either the drencher or the slide rail shower on and you could have the body jets on at the same time, but you couldn't have the drencher and the slide rail shower on at the same time.

Concealed and Exposed Shower Valves

Concealed shower valves are ones where when the valve is fitted only the controls are on the outside of the wall but all the water outlets and pipes that connect to them are concealed inside the wall. Exposed shower valves have the outlet(s) and associated pipes (in this case usually chrome-plated) visible on the outside of the wall.

Thermostatic and Manual Shower Valves

A thermostatic shower valve is one that incorporates an anti-scalding feature which shuts off the supply of water if its temperature exceeds a factory pre-set value. The idea is to shut closed the valve before the water coming out of the shower reaches a temperature that could injure a human being. This means if someone in another part of the house turns the cold water on causing the cold water pressure to the shower valve to be reduced and the mixed water coming out of the shower to get hotter, then anyone in the shower is protected from being caused injury by the water getting too hot.

Minimum Water Pressure

Each valve will have a pressure rating indicating the minimum pressure that is required for optimum performance of the valve. For most valves this minimum pressure will be low, usually 0.1 to 0.5bar, however for some valves especially those with diverters this may be higher, in some cases as high as 2 bar. If you do not have sufficient water pressure to drive the shower set up, you want you may have to install a water pump. If in doubt check with your plumber

Balanced Water Pressure

The water pressure to each of the hot and cold inlets to the valve must be approximately equal. If they are not, then your plumber may have to fit a pressure reducing valve to one of the inlets in order to equalise the pressure between them.

Non-Return Valves

All valves should be fitted with non-return valves.  If you need these your plumber can supply them, they are very low-cost items.

What can go wrong with a Shower Valve

The short answer is 'not a lot' and what can go wrong is easily fixed

Faulty Cartridge

The cartridge is the only part if the valve that does anything - if it leaks or otherwise fails to work then it can be easily replaced

Cartridge needs Calibrating

If the valve does not allow the water to become hot enough then you need to adjust the cartridge setting. This does not affect the thermostatic part of the valve; it just adjusts the temperature range that the hot/cold handle on the valve controls.

 

What is Tmv2 Approved?

 

Many of you will have seen the TMV2 logo on shower valves and thermostatically control water valves but what is TMV2? What does it mean? How will affect me as a consumer? 

TMV2 Is Independent Safety Certification

TMV2 is an independent testing scheme for thermostatic mixers, including shower valves, run by BuildCert to ensure that national and international standards are met (BS EN 1111 and 1287).  These standards specify exacting requirements that a thermostatic valve must comply with. TMV2 approval means high standards of thermostatic protection and suitability for use in the home.

TMV2 Is Protection

There is a risk to all members of a household from scalding, especially for the young and elderly.  In recent years, this issue has been raised by organisations such as the Child Accident Prevention Trust (CAPT) and social housing groups.

TMV2 approved thermostatic valves provide protection against scalding by automatically controlling the water temperature and cutting the flow of water if the temperature rises too high. This has been so successful that the NHS has reported a significant drop in scalding incidents where TMV approved valves are used.

TMV2 Is Confidence

TMV2 approval confirms that the valve complies with the required standards, and that the manufacturer and distributor have in place a suitable quality control system.

All valves complying with the TMV scheme are permanently and legibly marked with the manufacturers name or identification mark, or a unique model reference, making it easy to be sure the valve is compliant. Any valve that cannot be identified as such should not be regarded as a TMV approved valve.

TMV approval also requires that approved valves must include with the valve an installation and maintenance document. This document will give details of the operating conditions of the valve, its temperature differential, installation requirements, method of adjusting the mixed outlet temperature, commissioning procedure and test procedure.

What is WRAS Approved?

What does WRAS stand for?

WRAS is the abbreviation of Water Regulations Advisory Scheme, a standard laid out by UK water regulations and bylaws.

Every WRAS approved product comes with a “WRAS approved” logo, and products as well as businesses use the WRAS certificate to prove the standard of their equipment.

WRAS certification requires significant testing by independent labs and water suppliers and is of course accepted by every UK water supplier.

WRAS UK regulations are not going anywhere so it’s best we get to know them. Contractors and traders among us will be inclined to delve deeper into WRAS regulatory specifics (we’ll delve deeper ourselves into this a little later), yet all homeowners would benefit from learning exactly what WRAS means.

 

  • Condition: New
  • Type Required Please Choose: Square 1 Way 2 Dials
  • Colour: Chrome
  • Valves: Built in non return valves
  • UK standard size fitting: Yes
  • Thermostatically controlled: Yes
  • 38 deg C safety button: Yes
  • Operating range: 20 - 50 deg C
  • Material: Manufactured from highly durable brass, Chrome
  • Temperature Control: Thermostatic
  • Shower Head Shape: Round, Square & Cross
  • Installation: Concealed
  • Type: Concealed Shower Valve
  • Shower Head Included: No
  • MPN: CVP
  • Finish: Polished
  • Room: Bathroom
  • Number of Tap Handles: 2
  • Brand: Cheeky Bathrooms
  • Manufacturer Warranty: 2 years
  • Suitable For: Shower
  • Handle Type: Cross
  • Labels & Certifications: WRAS Approved, TMV2 Scheme Approved

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