{"product_id":"kartell-k-vit-k-design-thermostatic-radiator-valve-twin-pack-textured-grey","title":"Kartell K-VIT K-Design Thermostatic Radiator Valve Twin Pack – Textured Grey (Angled, Straight or Corner)","description":"\u003ch3\u003e\u003cstrong\u003eKartell K-VIT K-Design Thermostatic Radiator Valve Twin Pack – Textured Grey (Angled, Straight or Corner)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA matching pair of radiator valves from Kartell’s K-Design range in a textured grey finish. One valve is a \u003cstrong\u003ethermostatic radiator valve\u003c\/strong\u003e (often called a TRV) with a numbered head that you turn to choose how warm you want the room. The other is a \u003cstrong\u003elockshield valve\u003c\/strong\u003e, which your plumber sets once to balance the heating system and then leaves alone. Together they give you control of each radiator or towel rail separately, so you only heat the rooms you are using.\u003c\/p\u003e\n\u003cp\u003eThe head is numbered from * to Max (roughly 7°C to 32°C – see the table below) and works by sensing the temperature of the air around it, opening and closing the valve automatically to hold the room at the level you’ve chosen. The valves are made from solid brass and are bi-directional, which simply means they work whichever side the hot water comes in from.\u003c\/p\u003e\n\u003cp\u003eChoose the type that suits your pipework from the dropdown – angled, straight or corner.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eWhich type do I need?\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eLook at where your pipes come from and where they go into the radiator or towel rail:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAngled\u003c\/strong\u003e – the most popular choice. Use it where the pipe comes up out of the floor (or out of the wall) and needs to turn through 90° to go into the side of the radiator or towel rail.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStraight\u003c\/strong\u003e – for pipes that come up through the floor and go straight into a radiator or towel rail whose connections point downwards, with no change of direction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner\u003c\/strong\u003e – for pipes that come straight out of the wall behind the radiator. The valve turns the corner neatly and sits tight to the wall, so there is very little pipe on show.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOrdering the wrong type is an easy mistake to make, so it’s worth a quick look behind the radiator before you buy.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eTypes, codes and barcodes\u003c\/strong\u003e\u003c\/h4\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003cth\u003eCode\u003c\/th\u003e\n\u003cth\u003eFlow rate\u003c\/th\u003e\n\u003cth\u003eWeight\u003c\/th\u003e\n\u003cth\u003eBarcode (EAN)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAngled\u003c\/td\u003e\n\u003ctd\u003eGY-TRV301A\u003c\/td\u003e\n\u003ctd\u003e0.9m³\/h\u003c\/td\u003e\n\u003ctd\u003e0.44kg\u003c\/td\u003e\n\u003ctd\u003e5055681462185\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStraight\u003c\/td\u003e\n\u003ctd\u003eGY-TRV201S\u003c\/td\u003e\n\u003ctd\u003e0.9m³\/h\u003c\/td\u003e\n\u003ctd\u003e0.45kg\u003c\/td\u003e\n\u003ctd\u003e5055681462178\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorner\u003c\/td\u003e\n\u003ctd\u003eGY-TRV101C\u003c\/td\u003e\n\u003ctd\u003e1.17m³\/h\u003c\/td\u003e\n\u003ctd\u003e0.58kg\u003c\/td\u003e\n\u003ctd\u003e5055681462161\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cstrong\u003eTemperature settings\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe numbers on the head match these approximate room temperatures:\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e*\u003c\/th\u003e\n\u003cth\u003e1\u003c\/th\u003e\n\u003cth\u003e2\u003c\/th\u003e\n\u003cth\u003e3\u003c\/th\u003e\n\u003cth\u003e4\u003c\/th\u003e\n\u003cth\u003e5\u003c\/th\u003e\n\u003cth\u003eMax\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e7°C\u003c\/td\u003e\n\u003ctd\u003e12°C\u003c\/td\u003e\n\u003ctd\u003e16°C\u003c\/td\u003e\n\u003ctd\u003e20°C\u003c\/td\u003e\n\u003ctd\u003e24°C\u003c\/td\u003e\n\u003ctd\u003e28°C\u003c\/td\u003e\n\u003ctd\u003e32°C\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eSetting \u003cstrong\u003e3\u003c\/strong\u003e (about 20°C) is a comfortable starting point for most rooms. The \u003cstrong\u003e*\u003c\/strong\u003e setting is frost protection: the valve stays almost closed but will open if the room drops below about 7°C, which helps stop pipes freezing in a room you are not using.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFitting\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eThe valves have 15mm compression x ½” BSPT connections, so they suit standard UK 15mm copper pipe and the standard ½” connections found on most radiators and towel rails. Fitting means draining down or isolating the heating system, so we recommend using a plumber or heating engineer.\u003c\/p\u003e\n\u003cp\u003eThe manufacturer recommends fitting the thermostatic valve on the \u003cstrong\u003eflow\u003c\/strong\u003e pipe (the one the hot water comes in on) rather than the return. Because the valve is bi-directional it can go on either pipe where the heating system has an automatic bypass valve – a building regulations requirement on new installations and boiler upgrades, and needed for bi-directional valves to work properly without noisy ‘hammering’ in the pipes. Your heating engineer will know whether your system has one.\u003c\/p\u003e\n\u003cp\u003eProtect the finish while fitting – the manufacturer suggests at least two layers of paper between the nuts and the spanner – and don’t over-tighten the joints. The manufacturer notes the guarantee may be void if the valves are not fitted by a suitably qualified heating engineer.\u003c\/p\u003e\n\u003cp\u003eMake sure the thermostatic head can ‘feel’ the air in the room – if it is hidden behind a long curtain or boxed in, it will read the trapped warm air and switch off too early.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eLooking after the finish\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003eWipe with a soft, damp cloth and dry. Avoid abrasive pads, bleach and strong cleaning sprays, which can damage the textured grey finish.\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRange:\u003c\/strong\u003e Kartell K-Design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn the pack:\u003c\/strong\u003e 1 thermostatic radiator valve and 1 lockshield valve\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypes:\u003c\/strong\u003e Angled, Straight or Corner\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Textured Grey\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Textured grey\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Brass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnections:\u003c\/strong\u003e 15mm compression x ½” BSPT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e 7°C to 32°C (settings * and 1–5 to Max)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum operating pressure:\u003c\/strong\u003e 10 bar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum differential pressure:\u003c\/strong\u003e 1 bar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum water temperature:\u003c\/strong\u003e 120°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlow rate:\u003c\/strong\u003e 0.9m³\/h (angled and straight), 1.17m³\/h (corner)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermostatic valve size:\u003c\/strong\u003e head 39mm across; angled 125mm tall and 65mm wide including the radiator connector; straight 114mm tall and 80mm long including the radiator connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBi-directional:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuarantee:\u003c\/strong\u003e 5 years\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eDownloads\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/kartelluk-my.sharepoint.com\/:b:\/g\/personal\/erp_kartelluk_onmicrosoft_com\/IQBVM_f51n2XQIGcujM7Tvh9AaedeZ1uJJYH5qPntCtG59g?download=1\" target=\"_blank\" rel=\"noopener\"\u003eKartell data sheet – Angled (GY-TRV301A)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/kartelluk-my.sharepoint.com\/:b:\/g\/personal\/erp_kartelluk_onmicrosoft_com\/IQDX84CatHuZTYcx8-_Re9PDATJGB_DN0wKeyp_sk0Ac9wQ?download=1\" target=\"_blank\" rel=\"noopener\"\u003eKartell data sheet – Straight (GY-TRV201S)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n","brand":"Kartell","offers":[{"title":"Angled","offer_id":57532114829638,"sku":"GY-TRV301A","price":42.0,"currency_code":"GBP","in_stock":true},{"title":"Straight","offer_id":57532114862406,"sku":"GY-TRV201S","price":44.5,"currency_code":"GBP","in_stock":true},{"title":"Corner","offer_id":57532114895174,"sku":"GY-TRV101C","price":47.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0961\/7273\/6838\/files\/Screenshot2026-10-06154120.png?v=1791301585","url":"https:\/\/www.keywestbathrooms.co.uk\/products\/kartell-k-vit-k-design-thermostatic-radiator-valve-twin-pack-textured-grey","provider":"Key West Bathrooms","version":"1.0","type":"link"}