Drayton TRV4 Classic Thermostatic Radiator Valve TRV Body ONLY - no Head

Product Information

A thermostatic radiator valve is that little thing on the side of your radiator, and if you’ve ever wondered what a TRV is and how it works, then rest assured that it’s pretty simple. And of course programmable and actually work in degrees C no silly *123456 so would not fit mechanical heads any more. I have 3 or 4 radiators in my house for which tado don't provide the adaptor, and they're not possible to source elsewhere. Afghanistan, Albania, Algeria, American Samoa, Andorra, Angola, Anguilla, Antigua and Barbuda, Argentina, Armenia, Aruba, Australia, Austria, Azerbaijan Republic, Bahamas, Bahrain, Bangladesh, Barbados, Belarus, Belgium, Belize, Benin, Bermuda, Bhutan, Bolivia, Bosnia and Herzegovina, Botswana, Brazil, British Virgin Islands, Brunei Darussalam, Bulgaria, Burkina Faso, Burundi, Cambodia, Cameroon, Canada, Cape Verde Islands, Cayman Islands, Central African Republic, Chad, Channel Islands, Chile, China, Colombia, Comoros, Cook Islands, Costa Rica, Cyprus, Czech Republic, Côte d'Ivoire (Ivory Coast), Democratic Republic of the Congo, Denmark, Djibouti, Dominica, Dominican Republic, Ecuador, Egypt, El Salvador, Equatorial Guinea, Eritrea, Estonia, Ethiopia, Falkland Islands (Islas Malvinas), Fiji, Finland, France, French Guiana, French Polynesia, Gabon Republic, Gambia, Georgia, Germany, Ghana, Gibraltar, Greece, Greenland, Grenada, Guadeloupe, Guam, Guatemala, Guernsey, Guinea, Guinea-Bissau, Guyana, Haiti, Honduras, Hong Kong, Hungary, Iceland, India, Indonesia, Iraq, Ireland, Isle of Man, Isle of Wight, Israel, Italy, Jamaica, Japan, Jersey, Jordan, Kazakhstan, Kenya, Kiribati, Kuwait, Kyrgyzstan, Laos, Latvia, Lebanon, Lesotho, Liberia, Libya, Liechtenstein, Lithuania, Luxembourg, Macau, Macedonia, Madagascar, Malawi, Malaysia, Maldives, Mali, Malta, Marshall Islands, Martinique, Mauritania, Mauritius, Mayotte, Mexico, Micronesia, Moldova, Monaco, Mongolia, Montenegro, Montserrat, Morocco, Mozambique, Namibia, Nauru, Nepal, Netherlands, Netherlands Antilles, New Caledonia, New Zealand, Nicaragua, Niger, Nigeria, Niue, Northern Ireland, Norway, Oman, Pakistan, Palau, Panama, Papua New Guinea, Paraguay, Peru, Philippines, Poland, Portugal, Puerto Rico, Qatar, Republic of Croatia, Republic of the Congo, Reunion, Romania, Russian Federation, Rwanda, Saint Helena, Saint Kitts-Nevis, Saint Lucia, Saint Pierre and Miquelon, Saint Vincent and the Grenadines, San Marino, Saudi Arabia, Scilly Isles, Scottish Highlands, Scottish Islands, Senegal, Serbia, Seychelles, Sierra Leone, Singapore, Slovakia, Slovenia, Solomon Islands, Somalia, South Africa, South Korea, Spain, Sri Lanka, Suriname, Svalbard and Jan Mayen, Swaziland, Sweden, Switzerland, Taiwan, Tajikistan, Tanzania, Thailand, Togo, Tonga, Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Turks and Caicos Islands, Tuvalu, Uganda, Ukraine, United Arab Emirates, United States, Uruguay, Uzbekistan, Vanuatu, Vatican City State, Venezuela, Vietnam, Virgin Islands (U. If using wiser controlled heads then only a valve body is needed the wiser head being purchased separately.

To avoid damage to the valves and the heating system components, and the formation of scale deposit in the hot water heating system, the system should be flushed and a proprietary inhibitor needed. They’re precise in regulating radiator temperature and can sense the temperatures you set and maintain them. I'd say that all TRVs have a common thread size but because they are calibrated differently, you need to match the manufacturer / model i.Drayton's TRV4s set the standards for design, performance and quality, and are now A-Rating for energy efficiency. What I found most disappointing though, was the absolutely crap service provided by your designated supplier and the fact it took three attempts to get it delivered, in this case, Plumb Centre, Poole.

The valve itself is fine the thermostatic has a seized so it can't be turned, at least not without excessive effort. Going back to the Drayton valve-bodies, I'm surprised to see olde-worlde instructions to set them for an 11°C drop. I've seen a video for a competitor brand, where you just use an App, telling it the radiator size and type and it tells you what to set the valve to. And as the room temperature changes, the valve head expands, adjusting a pin in the valve body so that it opens or closes. I simply took out the worn-out gland seal and replaced it with the new one and it works like a charm.And the second is that you can control your heating right from the palm of your hand with smart TRVs, as they can be managed remotely through a smartphone app. But with so many different controls on the market, it can be confusing to understand exactly what these products do, and which will be the best for your home. As a result and given that you are not supplying direct, its somewhat doubtful that Id use your services again. The first main difference between thermostatic radiator valves and smart radiator valves is that you can select the exact temperature of your room, rather than a range.

With smart radiator valves, you can enjoy all the benefits of thermostatic radiator valves, but with even more functionality. The TRV4 body has a nice table that shows the correct setting for different radiator outputs but the EB has some complicated flow capacity graph that I can make head nor tail of. Essentially, by fitting TRVs to your radiators, you can control the temperature in each room individually. I could see them working, Actually felt the resistance increase, blowing through them, As I walked in from the cold to the warm house.These locations include / but are not restricted to UK Highlands and Islands, UK Non Mainland, Isle of Wight and Northern Ireland. Pwba is an updated version from the original and hopefully will have a longer life than the failed unit (5 years). The 103 third parties who use cookies on this service do so for their purposes of displaying and measuring personalized ads, generating audience insights, and developing and improving products. The only downside was that despite being despatched same day by Team-Supplies, it took Royal Mail 10 days to deliver. Read more about the condition New: A brand-new, unused, unopened and undamaged item in original retail packaging (where packaging is applicable).