{"title":"Altecnic \u0026 Caleffi","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAltecnic is a trusted leader in hydronic solutions for the plumbing and heating industry. They specialise in designing, manufacturing, and supplying high-quality products that expertly control the flow, temperature, and safety of water, heating, and cooling systems. With a strong commitment to quality and a comprehensive range of industry-certified products, Altecnic ensures reliable and efficient hydronic performance for every application.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eExplore our extensive selection of Altecnic valves, including shut-off drain valves, pressure relief valves, anti-freeze valves, isolation valves, and more — all engineered to deliver optimal system control and protection.\u003c\/span\u003e\u003c\/p\u003e\n\u003c!----\u003e","products":[{"product_id":"reflex-60-litre-de-potable-water-expansion-vessel-7306400","title":"Reflex 60 Litre DE Potable Water Expansion Vessel - 7306400","description":"\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eReflex 60 Litre DE Potable Water Expansion Vessel - 7306400\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eIts primary function is to safely manage the expansion and contraction of water as it heats and cools, preventing pressure build-up that could damage the system. \u003c\/p\u003e","brand":"Altecnic","offers":[{"title":"Default Title","offer_id":49545121497370,"sku":"7306400","price":299.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/5523\/1002\/files\/Screenshot2025-07-17134008.png?v=1752756206"},{"product_id":"altecnic-caleffi-1-1-4-fbsp-x-1-1-2-fbsp-513-large-series-safety-pressure-relief-valve-6-bar-513760","title":"Caleffi 1 1\/4\" FBSP x 1 1\/2\" FBSP 513 Large Series Safety PRV 6 Bar - 513760","description":"\u003cp data-sourcepos=\"7:1-7:71\"\u003e\u003cspan\u003eDesigned to safeguard large domestic hot water and heating systems from excessive pressure.\u003c\/span\u003e\u003cspan\u003e Protects critical components like hot water cylinders and boilers.\u003c\/span\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"15:1-15:17\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-sourcepos=\"17:1-18:54\"\u003e\n\u003cli data-sourcepos=\"17:1-17:57\"\u003e\u003cspan\u003eIdeal for large domestic hot water and heating systems.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-sourcepos=\"18:1-18:54\"\u003e\u003cspan\u003eProtects hot water cylinders and heating components.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-sourcepos=\"19:1-19:22\"\u003e\n\u003cspan\u003eSet pressure:\u003c\/span\u003e\u003cspan\u003e 6 Bar.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-sourcepos=\"20:1-20:54\"\u003e\u003cspan\u003e1 1\/4\" female to 1 1\/2\" female threaded connections.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-sourcepos=\"21:1-21:54\"\u003e\u003cspan\u003eSuitable for air and water (potable or non-potable)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-sourcepos=\"23:1-24:0\"\u003e\u003cspan\u003eWRAS Approved product.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eStainless steel spring.\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli id=\"i7a4y\"\u003eMax. static pressure:\u003cspan\u003e \u003c\/span\u003e\u003cspan id=\"ifupi\"\u003e10 Bar\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-sourcepos=\"9:1-9:17\"\u003e\u003cstrong\u003eHow it Works:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-sourcepos=\"11:1-12:1\"\u003e\n\u003cli data-sourcepos=\"11:1-11:37\"\u003e\u003cspan\u003eSet to a specific pressure (6 Bar).\u003c\/span\u003e\u003c\/li\u003e\n\u003cli data-sourcepos=\"12:1-12:1\"\u003e\n\u003cspan\u003eWhen system pressure rises and reaches the set point,\u003c\/span\u003e\u003cspan\u003e the valve opens,\u003c\/span\u003e\u003cspan\u003e releasing excess pressure to the atmosphere.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-sourcepos=\"13:1-13:74\"\u003e\n\u003cspan\u003ePrevents dangerous pressure levels that could harm the boiler,\u003c\/span\u003e\u003cspan\u003e hot water cylinder,\u003c\/span\u003e\u003cspan\u003e or nearby individuals.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eLead Time Approximately: 2 working days\u003c\/span\u003e\u003c\/p\u003e","brand":"Altecnic","offers":[{"title":"Default Title","offer_id":49571543712026,"sku":"513760","price":210.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/5523\/1002\/files\/Altecnic-Caleffi-Relief-Valve-6-Bar-513760.png?v=1728028804"},{"product_id":"altecnic-311430-female-x-female-safety-valve-3-bar-1-2","title":"Altecnic Female x Female Safety Valve 3 bar 1\/2\" - 311430","description":"\u003cp\u003e\u003cstrong\u003eCaleffi – Pressure Relief Valve 1\/2″ Female 3 Bar 311430\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Altecnic series 311 safety relief valves are used in domestic hot water systems to protect the hot water cylinder and in heating systems to protect boiler and other components.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTechnical\u003c\/strong\u003e\u003c\/span\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMedium: water and air\u003c\/li\u003e\n\u003cli\u003eTemperature range: 5 to 110°C\u003c\/li\u003e\n\u003cli\u003eSet pressure: 3 bar\u003c\/li\u003e\n\u003cli\u003eMax. static pressure: 10 bar\u003c\/li\u003e\n\u003cli\u003ePED category: IV\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Altecnic","offers":[{"title":"Default Title","offer_id":49743628304666,"sku":"311430","price":8.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/5523\/1002\/files\/Altecnic-311430.png?v=1728032629"},{"product_id":"311501-caleffi-6-bar-pressure-relief-valve-3-4-loose-nut-to-1-2-bsp","title":"Caleffi – 6 Bar Pressure Relief Valve 3\/4″ Loose Nut to 1\/2″ BSP - 311501","description":"\u003cp\u003e\u003cstrong\u003eCaleffi – \u003cspan\u003e6 Bar Pressure Relief Valve 3\/4″ Loose Nut to 1\/2″ BSP 311501\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Caleffi range of safety relief valves are WRAS approved and are designed to protect hot water cylinders and boilers in domestic hot water and heating systems. Valves are set to a certain pressure (bar g) and when the system reaches this pressure the valve is designed to open to release the pressure ensuring the system does not exceed its maximum safety limits\u003c\/span\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTechnical\u003c\/strong\u003e\u003c\/span\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSet pressure: 6 bar\u003c\/li\u003e\n\u003cli\u003eDischarge Pressure:\u003cspan\u003e 7.2 Bar\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003eMax. static pressure: 10 bar\u003c\/li\u003e\n\u003cli\u003e1\/2\" F x Loose Nut\u003c\/li\u003e\n\u003cli\u003eH: 72mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"product_title entry-title\"\u003eAlternative to: Joules 311501\u003c\/p\u003e","brand":"Altecnic","offers":[{"title":"Default Title","offer_id":49743632466202,"sku":"311501","price":26.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/5523\/1002\/files\/Caleffi-_-6-Bar-Pressure-Relief-Valve-3-4-Loose-Nut-to-1-2-BSP-311501.png?v=1728034528"},{"product_id":"pva34l","title":"Altecnic PVA34W Shut Off Drain Valve","description":"\u003cp\u003e\u003cstrong\u003eAltecnic PVA34W Lockable Shut Off Drain Valve\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe PVA34W has be specifically designed to allow for the expansion vessel to be fitted easily and conveniently to the system.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTechnical\u003c\/strong\u003e\u003c\/span\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMax. working pressure: 10 Bar\u003c\/li\u003e\n\u003cli\u003e A union connection for easy fitting\u003c\/li\u003e\n\u003cli\u003eMax. operating temperature: 120˚C\u003c\/li\u003e\n\u003cli\u003eConnection threads: BE EN ISO 228\u003c\/li\u003e\n\u003cli\u003eBody material: Brass \u003c\/li\u003e\n\u003cli\u003eBS EN 12420 CW617N\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Altecnic","offers":[{"title":"Default Title","offer_id":49743782674714,"sku":"PVA34W","price":17.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/5523\/1002\/files\/Altecnic-PVA34W-Shut-Off-Drain-Valve.png?v=1728035599"},{"product_id":"a314437cst-altecnic-safety-pressure-relief-valve-with-gauge-port-3-bar","title":"Altecnic 1\/2\" M x 15mm Safety Pressure Relief Valve with Gauge Port 3 Bar A314437 CST","description":"\u003cp data-sourcepos=\"7:1-7:71\"\u003e\u003cstrong\u003eA314437CST\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"7:1-7:71\"\u003e\u003cspan\u003eThe Altecnic series 314 safety relief valves are used in domestic hot water systems to protect the hot water cylinder and in heating systems to protect the boiler and other components. The valve is selected for the required set pressure. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"15:1-15:17\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-sourcepos=\"17:1-18:54\"\u003e\n\u003cli\u003ePressure rating: 3 Bar\u003c\/li\u003e\n\u003cli id=\"isahk\"\u003eTemperature range: 5 to 110°C\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli id=\"is50h\"\u003eComplete with: Gauge Port\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eWRAS Approved\u003c\/li\u003e\n\u003cli\u003e1\/2\" male threaded to 15mm connections\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli id=\"iz6rb\"\u003eMax. Static Pressure: 10 Bar\u003c\/li\u003e\n\u003cli id=\"icgmv\"\u003ePED Category: IV\u003c\/li\u003e\n\u003cli\u003eSuitable for water (potable or not) and air\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Altecnic","offers":[{"title":"Default Title","offer_id":49743852044570,"sku":"A314437CST","price":15.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/5523\/1002\/files\/Altecnic_Caleffi_314_Series_Pressure_Relief_Valve_with_Gauge_Port_1_2_M_x_15mm_3_Bar_-_A314437CST.png?v=1774002152"},{"product_id":"af-ahs077796","title":"Altecnic 9.6 Litre Solar Safety Valve Fluid Recovery Container AF-AHS077796","description":"\u003cp data-sourcepos=\"7:1-7:71\"\u003e\u003cspan\u003eWith the installation of the Altecnic safety valve fluid recovery container, glycol can be piped directly from the safety valve discharge outlet to the recovery container. Any solar glycol collected in the recovery container is clearly visible through the opaque plastic and is easily drained through the integral drain valve during regular maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"15:1-15:17\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-sourcepos=\"17:1-18:54\"\u003e\n\u003cli\u003e\u003cspan\u003e9.6 Litre - Solar Safety Valve Fluid Recovery Container\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eContainer Temperature for Short Term Discharge: 160°C\u003c\/li\u003e\n\u003cli\u003eContainer Material - Plastic PE (Polyethylene-Lupolen 5021D White)\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"block lg:flex items-center mx-auto w-full lg:w-4\/5 redback1-override lg:mb-0 mb-4\"\u003e\n\u003cdiv class=\"w-full lg:w-1\/2 self-start\"\u003e\n\u003cp\u003eClearance: 440mm High Including Wall Fixing Brackets and Drain Valve Assembly\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Altecnic","offers":[{"title":"Default Title","offer_id":49743934914842,"sku":"AHS077796","price":155.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/5523\/1002\/files\/Solar-Safety-Valve-Fluid-Recovery-Container.png?v=1728026870"},{"product_id":"caleffi-3-4-pressure-temperature-relief-valve-set-at-90-c-7-bar-309575-cst","title":"Caleffi 3\/4\" Pressure \u0026 Temperature Relief Valve Set at 90°C 7 Bar 309575 CST","description":"\u003ch3 class=\"text-gray-900 mt-4 lg:mt-0 mb-4\"\u003eCaleffi 3\/4\" Series 309 Pressure \u0026amp; Temperature Relief Valve Set at 90°C 7 Bar 309575CST\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe Altecnic 309 temperature and pressure relief valves are used to control and limit the temperature and pressure of hot water contained in a domestic storage cylinder, preventing the water from reaching 100°C. When the set conditions are reached, the valve discharges a sufficient amount of water to allow the temperature or pressure to return within the system's operating limits. The valves have been designed for use on unvented hot water systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTechnical\u003c\/strong\u003e\u003c\/span\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMedium: water\u003c\/li\u003e\n\u003cli\u003eTemperature setting: 90°C\u003c\/li\u003e\n\u003cli\u003eSet pressure: 7 bar\u003c\/li\u003e\n\u003cli\u003eMax. static pressure: 10 bar\u003c\/li\u003e\n\u003cli\u003ePED category: IV\u003c\/li\u003e\n\u003cli\u003eProbe length: 203mm\u003c\/li\u003e\n\u003cli\u003eWRAS Approved Product\u003c\/li\u003e\n\u003cli id=\"icllc\"\u003e\n\u003cstrong\u003eDischarge rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e25kW\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Altecnic","offers":[{"title":"Default Title","offer_id":49743940485402,"sku":"309575","price":72.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/5523\/1002\/files\/Altecnic_Caleffi_309575_CST.png?v=1774002894"},{"product_id":"altecnic-pva10l-1-inch-lockable-isolation-valve","title":"Altecnic PVA10L 1 inch Lockable Isolation Valve","description":"\u003cp\u003e\u003cstrong\u003eAltecnic PVA10L \u003cspan\u003e1\" Lockable Isolation Valve\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1 inch Reflex Lockshield Valve 1\" x 1\".\u003c\/p\u003e\n\u003cp\u003eFor diaphragm expansion vessels in sealed heating and cooling systems.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTechnical\u003c\/strong\u003e\u003c\/span\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMax. working pressure: 10 Bar\u003c\/li\u003e\n\u003cli\u003e Body material: Brass \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eConnection: R 1 inch\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Altecnic","offers":[{"title":"Default Title","offer_id":54828029411704,"sku":"7613100","price":78.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/5523\/1002\/files\/Altecnic_PVA10L_1_inch_Lockable_Isolation_Valve.png?v=1773833508"},{"product_id":"108301-altecnic-28mm-anti-freeze-valve","title":"108301 – Altecnic 28mm Anti-Freeze Valve","description":"\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eProtect your investment with the Altecnic Anti-Freeze Valve.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Altecnic Anti-Freeze Valve is designed to protect critical heating system components, such as heat pumps, valves, and pipes, from freezing. When the temperature of the circuit medium drops to an average of  3˚C, the valve automatically activates, allowing the system to drain safely. This prevents ice from forming, which can otherwise cause costly damage and disrupt system operation. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eEasy to install and highly reliable, the valve is compatible with a wide range of pipe sizes and fittings, making it suitable for almost any heating system, domestic or commercial. It provides a practical solution to prevent freeze-related damage, maintain system efficiency, and reduce the risk of expensive repairs, even in the coldest conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003e\u003cspan\u003eMax. Working Pressure: 10 bar\u003c\/span\u003e\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003eWorking Temperature Range: 0 to 65˚C\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003eAmbient Temperature Range: -30 to 60˚C\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003eMedium Temperature: Opening: 3˚C\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003eMedium Temperature: Closing: 4˚C\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003eAccuracy: ±1˚C\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003eConnection: Compression: BS EN 1254\u003c\/li\u003e\n\u003cli role=\"presentation\" dir=\"ltr\"\u003eConnection Threads: BS EN ISO 228-1\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb id=\"docs-internal-guid-4958378c-7fff-c0c5-6f30-473df1447507\"\u003e\u003c\/b\u003e\u003c\/p\u003e","brand":"Altecnic","offers":[{"title":"Default Title","offer_id":54828608455032,"sku":"108301","price":84.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/5523\/1002\/files\/atecnic_anitfreeze_valve_108301.jpg?v=1732723861"},{"product_id":"22mm-solar-drain-flush-valve-3-4","title":"22mm Solar Drain \/ Flush Valve (3\/4\")","description":"\u003cp\u003e\u003cstrong\u003e20994\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e22mm Solar Drain \/ Flush Valve (3\/4\")\u003c\/p\u003e","brand":"Altecnic","offers":[{"title":"Default Title","offer_id":55208389640568,"sku":"419890","price":92.19,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/5523\/1002\/files\/Screenshot2025-07-17161204.png?v=1752765182"},{"product_id":"altecnic-caleffi-3-4-3-bar-safety-relief-valve-female-connections-311530","title":"Altecnic - Caleffi 3\/4″ 3 Bar Safety Relief Valve (Female) - 311530","description":"\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eAltecnic - Caleffi 3\/4″ 3 Bar Safety Relief Valve (Female Connections) - 311530\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Altecnic series 311 and 312 safety relief valves are used in domestic hot water systems to protect the hot water cylinder and in heating systems to protect boiler and other components.\u003c\/p\u003e\n\u003cp\u003eThe valve is selected for the required set pressure. As the pressure rises, when the discharge pressure is reached the valve opens and discharges to atmosphere, preventing the pressure within the system reaching levels which would be dangerous for the boiler, hot water storage cylinder and any personnel in the adjacent vicinity\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTechnical\u003c\/strong\u003e\u003c\/span\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTemperature range: 5 to 110°C\u003c\/li\u003e\n\u003cli\u003eSet pressure: 3 Bar\u003c\/li\u003e\n\u003cli\u003eMax. static pressure: 10 Bar\u003c\/li\u003e\n\u003cli\u003ePED category: IV\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Altecnic","offers":[{"title":"Default Title","offer_id":55212341330296,"sku":"311530","price":12.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/5523\/1002\/files\/Altecnic_-_Caleffi_3_4_3_Bar_Safety_Relief_Valve_Female_Connections_-_311530.jpg?v=1753109872"},{"product_id":"caleffi-robocal-auto-air-vent-with-check-valve-502530","title":"Caleffi ROBOCAL - Auto air vent. with check valve - 502530","description":"\u003cp\u003e\u003cspan\u003eAltecnic Caleffi - ROBOCAL - Automatic air vent. 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This prevents ice formation, protecting critical components like heat pumps, valves, and pipes from potential damage. Versatile and easy to install, these valves are compatible with a wide range of fittings and pipes.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTechnical\u003c\/strong\u003e\u003c\/span\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMax. working pressure: 10 bar\u003c\/li\u003e\n\u003cli\u003eWorking temperature range: 0 to 65˚C\u003c\/li\u003e\n\u003cli\u003eAmbient temperature range: -30 to 60˚C\u003c\/li\u003e\n\u003cli\u003eMedium temperature – opening: 3˚C\u003c\/li\u003e\n\u003cli\u003eMedium temperature – closing: 4˚C\u003c\/li\u003e\n\u003cli\u003eAccuracy: ±1˚C\u003c\/li\u003e\n\u003cli\u003eConnection: G 1\" A (ISO 228-1) M\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Altecnic","offers":[{"title":"Default Title","offer_id":55270084346232,"sku":"108601","price":89.79,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/5523\/1002\/files\/108601_Caleffi_iStop_Anti-Freeze_Valve_-_G_1_A_ISO_228-1_M.png?v=1770734163"},{"product_id":"altecnic-caleffi-22mm-series-533-pressure-reducing-valve-with-pressure-gauge-533851h","title":"Altecnic Caleffi 22mm Series 533 Pressure Reducing Valve with Pressure Gauge - 533851H","description":"\u003cp data-sourcepos=\"7:1-7:71\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003ePressure Reducing Valve with Pressure Gauge - 533851H\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-sourcepos=\"7:1-7:71\"\u003eThe 533 series is specially designed for hot and cold services in houses or apartments to equalise the hot or cold water supplies or both and prevent excessive pressure at outlets such as taps and showers. They have a specially shaped diaphragm to give accurate pressure regulation in response to changes in downstream pressure. The larger outlet chamber creates a low exit velocity which is effective in reducing water noise. The control stem housing of the cartridge is made from a plastic material with a low co-efficient of adhesion, which reduces the probability of scale deposits forming, the main cause of pressure reducing valve malfunction.\u003c\/p\u003e\n\u003cp data-sourcepos=\"15:1-15:17\"\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-sourcepos=\"17:1-18:54\"\u003e\n\u003cli\u003e22mm Compression Prescal Series 533 Pressure Reducing Valve\u003c\/li\u003e\n\u003cli\u003ePressure reducing valve designed for domestic and semi-commercial applications\u003c\/li\u003e\n\u003cli\u003eSuitable for hot and cold services\u003c\/li\u003e\n\u003cli\u003ePressure setting range: 1 to 6 Bar\u003c\/li\u003e\n\u003cli\u003eAccurate pressure regulation\u003c\/li\u003e\n\u003cli\u003eLow exit velocity reduces water noise\u003c\/li\u003e\n\u003cli\u003eFeatures reduced scale formations\u003c\/li\u003e\n\u003cli\u003eCartridge and strainer can be easily removed to be cleaned\u003c\/li\u003e\n\u003cli\u003e22mm copper compression connections\u003c\/li\u003e\n\u003cli\u003eChrome plated brass body \u003c\/li\u003e\n\u003cli\u003eWRAS Approved\u003c\/li\u003e\n\u003cli\u003eIncludes gauge port and gauge\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Altecnic","offers":[{"title":"Default Title","offer_id":55358219387256,"sku":"533851H","price":54.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/5523\/1002\/files\/Altecnic_Caleffi_22mm_Series_533_Pressure_Reducing_Valve_with_Pressure_Gauge_-_533851H.png?v=1763040653"},{"product_id":"caleffi-caleffi-1-2-f-x-3-4-f-253-solar-series-pressure-relief-valve-6-bar-253046","title":"Caleffi 1\/2\" F x 3\/4\" F 253 Solar Series Pressure Relief Valve 6 Bar - 253046","description":"\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eCaleffi 1\/2\" F x 3\/4\" F 253 Solar Series Pressure Relief Valve 6 Bar - 253046\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe Altecnic series 253 safety relief valves are used to control pressure in the primary circuits of solar heating systems. The valve is selected for the required set pressure. As the pressure rises, when the discharge pressure is reached the valve opens and discharges to atmosphere, preventing the pressure within the system reaching levels which might damage the solar collectors and other equipment installed in the system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eSize - ½″ Inlet x ¾″ Outlet\u003c\/p\u003e\n\u003cp\u003e6.0 Bar\u003c\/p\u003e\n\u003cp\u003eConnection - F X F BSP\u003c\/p\u003e","brand":"Altecnic","offers":[{"title":"Default Title","offer_id":55383572447608,"sku":"253046","price":31.94,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0799\/5523\/1002\/files\/Caleffi_1_2_F_x_3_4_F_253_Solar_Series_Pressure_Relief_Valve_6_Bar_-_253046.png?v=1773757863"},{"product_id":"altecnic-caleffi-3-6-bar-22mm-multibloc-inlet-control-valve-2-piece","title":"Altecnic Caleffi 3\/6 Bar 22mm Multibloc Inlet Control Valve 2 Piece 535000CST","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"font-size: 12.0pt; 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