{"product_id":"salamander-hws-tmv-thermostatic-mixing-valve-22mm-compression","title":"Salamander HWS TMV Thermostatic Mixing Valve 22mm Compression","description":"\u003c!-- SEO Product Name: Salamander Temperature Protection Blending Valve 22mm | HWSTMV --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; color:#1f2933; line-height:1.6; font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;\"\u003e\n\u003cp style=\"margin:0 0 14px 0; font-size:16px; line-height:1.65;\"\u003eThe \u003cstrong\u003eSalamander Temperature Protection Blending Valve\u003c\/strong\u003e is a \u003cstrong\u003ethermostatic mixing valve (TMV)\u003c\/strong\u003e designed to \u003cstrong\u003eprotect booster pumps\u003c\/strong\u003e fitted to systems where the stored domestic hot water temperature is uncontrolled, such as \u003cstrong\u003eAGA cookers, solid fuel appliances\u003c\/strong\u003e or automatic boilers very crudely controlled by the boiler thermostat.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px 0; font-size:16px; line-height:1.65;\"\u003eBy automatically \u003cstrong\u003eblending hot and cold water\u003c\/strong\u003e, the valve holds the temperature reaching the pump below the pump's limit even when the hot supply fluctuates. It arrives \u003cstrong\u003epre-set at 55 °C\u003c\/strong\u003e and comes \u003cstrong\u003ecomplete with connectors for 22 mm compression\u003c\/strong\u003e, so it can be fitted without sourcing extra fittings. Manufacturer product code: \u003cstrong\u003eACCHWSTMV\u003c\/strong\u003e (trade code \u003cstrong\u003eHWSTMV\u003c\/strong\u003e).\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:22px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 8px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:800; line-height:1.2;\"\u003e55 °C\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; margin-top:4px; line-height:1.35;\"\u003eFactory pre-set\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 8px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:800; line-height:1.2;\"\u003e22 mm\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; margin-top:4px; line-height:1.35;\"\u003eCompression connectors supplied\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 8px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:800; line-height:1.2;\"\u003e60 °C\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; margin-top:4px; line-height:1.35;\"\u003eMax water temp, CT range pumps\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 8px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:800; line-height:1.2;\"\u003eThermostatic\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; margin-top:4px; line-height:1.35;\"\u003eBlends hot and cold\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 8px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:800; line-height:1.2;\"\u003eHWSTMV\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; margin-top:4px; line-height:1.35;\"\u003eTrade \/ list code\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 8px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:22px; font-weight:800; line-height:1.2;\"\u003ePump safe\u003c\/div\u003e\n\u003cdiv style=\"font-size:13px; margin-top:4px; line-height:1.35;\"\u003eProtects booster pumps\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left:6px solid #b3261e; background:#fdf1f0; border-radius:6px; padding:14px 16px; margin:14px 0;\"\u003e\n\u003cdiv style=\"font-weight:800; color:#b3261e; margin-bottom:4px;\"\u003ePump temperature limit and installation regulations\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; line-height:1.6;\"\u003eWater passing through Salamander CT Xtra, CT Bathroom and CT Force pumps must not exceed \u003cstrong\u003e60 °C\u003c\/strong\u003e. Stored hot water must be controlled by an approved method such as a cylinder thermostat or thermostatic valve. Installation must comply with the Water Supply (Water Fittings) Regulations 1999, and incorrect installation invalidates the pump warranty.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left:6px solid #008377CF; background:#eef7f6; border-radius:6px; padding:14px 16px; margin:14px 0;\"\u003e\n\u003cdiv style=\"font-weight:800; color:#008377CF; margin-bottom:4px;\"\u003eWhen you need one\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; line-height:1.6;\"\u003eThe manufacturer's installation guide requires an approved HWS TMV where stored hot water temperature cannot be efficiently controlled, for example \u003cstrong\u003eAga or solid fuel appliances, solar panels, air source heat pumps\u003c\/strong\u003e or temperature controlled very crudely by the boiler thermostat.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left:6px solid #b26a00; background:#fff7e6; border-radius:6px; padding:14px 16px; margin:14px 0;\"\u003e\n\u003cdiv style=\"font-weight:800; color:#b26a00; margin-bottom:4px;\"\u003ePump protection, not a point-of-use anti-scald valve\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; line-height:1.6;\"\u003eThis valve is specified by the manufacturer to protect pumps from uncontrolled stored hot water. No TMV2 or TMV3 approval is stated, so it does \u003cstrong\u003enot replace\u003c\/strong\u003e a thermostatic shower mixer or point-of-use TMV where one is required.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left:6px solid #b26a00; background:#fff7e6; border-radius:6px; padding:14px 16px; margin:14px 0;\"\u003e\n\u003cdiv style=\"font-weight:800; color:#b26a00; margin-bottom:4px;\"\u003ePre-set temperature\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; line-height:1.6;\"\u003eThe product page states the valve is pre-set at \u003cstrong\u003e55 °C\u003c\/strong\u003e. The pump installation guide labels its blending valve controller diagram as factory set at 55 to 60 °C. Check the valve outlet temperature at commissioning.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size:21px; font-weight:700; color:#008377CF; margin:30px 0 14px 0; padding-bottom:8px; border-bottom:3px solid #008377CF;\"\u003eKey features\u003c\/h3\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:12px; margin:14px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:5px solid #008377CF; border-radius:8px; padding:14px 16px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:800; color:#008377CF; font-size:17px; margin-bottom:6px;\"\u003eProtects booster pumps\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; line-height:1.6;\"\u003eDesigned to \u003cstrong\u003eprotect pumps\u003c\/strong\u003e where stored domestic hot water temperature is uncontrolled, helping to keep the supply within the pump's 60 °C limit.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:5px solid #008377CF; border-radius:8px; padding:14px 16px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:800; color:#008377CF; font-size:17px; margin-bottom:6px;\"\u003eThermostatic blending\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; line-height:1.6;\"\u003e\n\u003cstrong\u003eAutomatically blends hot and cold water\u003c\/strong\u003e to maintain a steady outlet temperature regardless of fluctuations in the hot supply.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:5px solid #008377CF; border-radius:8px; padding:14px 16px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:800; color:#008377CF; font-size:17px; margin-bottom:6px;\"\u003ePre-set at 55 °C\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; line-height:1.6;\"\u003eSupplied \u003cstrong\u003efactory pre-set at 55 °C\u003c\/strong\u003e and ready to fit.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:5px solid #008377CF; border-radius:8px; padding:14px 16px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:800; color:#008377CF; font-size:17px; margin-bottom:6px;\"\u003e22 mm compression connectors\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; line-height:1.6;\"\u003e\n\u003cstrong\u003eComplete with connectors for 22 mm compression\u003c\/strong\u003e pipework, included in the box.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:5px solid #008377CF; border-radius:8px; padding:14px 16px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:800; color:#008377CF; font-size:17px; margin-bottom:6px;\"\u003eSuits uncontrolled heat sources\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; line-height:1.6;\"\u003eSpecified for \u003cstrong\u003eAGA, solid fuel appliances\u003c\/strong\u003e and boilers crudely controlled by the boiler thermostat, and required by the installation guide for solar and air source heat pump hot water where temperature cannot be controlled.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:5px solid #008377CF; border-radius:8px; padding:14px 16px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:800; color:#008377CF; font-size:17px; margin-bottom:6px;\"\u003eSalamander approved\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; line-height:1.6;\"\u003eThe \u003cstrong\u003eapproved HWS blending valve controller\u003c\/strong\u003e shown in the CT pump installation guide, backed by the manufacturer's PumpWise technical helpline.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size:21px; font-weight:700; color:#008377CF; margin:30px 0 14px 0; padding-bottom:8px; border-bottom:3px solid #008377CF;\"\u003eTechnical specification\u003c\/h3\u003e\n\u003cdiv style=\"border:1px solid #008377CF; border-radius:8px; overflow:hidden; margin:0 0 16px 0;\"\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:800; padding:10px 14px; font-size:16px;\"\u003eGeneral\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:6px 16px; padding:9px 14px; background:#eef7f6; font-size:15px;\"\u003e\n\u003cdiv style=\"flex:0 0 220px; max-width:100%; font-weight:700; color:#008377CF;\"\u003eBrand\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 220px;\"\u003eSalamander Pumps\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:6px 16px; padding:9px 14px; background:#ffffff; font-size:15px;\"\u003e\n\u003cdiv style=\"flex:0 0 220px; max-width:100%; font-weight:700; color:#008377CF;\"\u003eManufacturer product code\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 220px;\"\u003eACCHWSTMV\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:6px 16px; padding:9px 14px; background:#eef7f6; font-size:15px;\"\u003e\n\u003cdiv style=\"flex:0 0 220px; max-width:100%; font-weight:700; color:#008377CF;\"\u003eTrade \/ list code\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 220px;\"\u003eHWS TMV (HWSTMV)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:6px 16px; padding:9px 14px; background:#ffffff; font-size:15px;\"\u003e\n\u003cdiv style=\"flex:0 0 220px; max-width:100%; font-weight:700; color:#008377CF;\"\u003eType\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 220px;\"\u003eThermostatic mixing (blending) valve, temperature protection\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:6px 16px; padding:9px 14px; background:#eef7f6; font-size:15px;\"\u003e\n\u003cdiv style=\"flex:0 0 220px; max-width:100%; font-weight:700; color:#008377CF;\"\u003eApplication\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 220px;\"\u003eProtecting booster pumps on systems with uncontrolled stored hot water\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #008377CF; border-radius:8px; overflow:hidden; margin:0 0 16px 0;\"\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:800; padding:10px 14px; font-size:16px;\"\u003ePerformance and connections\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:6px 16px; padding:9px 14px; background:#eef7f6; font-size:15px;\"\u003e\n\u003cdiv style=\"flex:0 0 220px; max-width:100%; font-weight:700; color:#008377CF;\"\u003eFactory pre-set temperature\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 220px;\"\u003e55 °C\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:6px 16px; padding:9px 14px; background:#ffffff; font-size:15px;\"\u003e\n\u003cdiv style=\"flex:0 0 220px; max-width:100%; font-weight:700; color:#008377CF;\"\u003eConnections\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 220px;\"\u003e22 mm compression\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:6px 16px; padding:9px 14px; background:#eef7f6; font-size:15px;\"\u003e\n\u003cdiv style=\"flex:0 0 220px; max-width:100%; font-weight:700; color:#008377CF;\"\u003eConnectors\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 220px;\"\u003e22 mm compression connectors supplied with the valve\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:6px 16px; padding:9px 14px; background:#ffffff; font-size:15px;\"\u003e\n\u003cdiv style=\"flex:0 0 220px; max-width:100%; font-weight:700; color:#008377CF;\"\u003eMaximum water temperature to CT range pumps\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 220px;\"\u003e60 °C\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size:21px; font-weight:700; color:#008377CF; margin:30px 0 14px 0; padding-bottom:8px; border-bottom:3px solid #008377CF;\"\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cdetails style=\"border:1px solid #008377CF; border-radius:8px; margin:0 0 10px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; padding:12px 16px; font-weight:700; cursor:pointer; font-size:16px;\"\u003eWhat does the Salamander temperature protection blending valve do?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:15px; line-height:1.65; background:#ffffff;\"\u003eIt is a thermostatic mixing valve that blends cold water into the stored hot supply so the temperature reaching the pump stays controlled. It is also described by the manufacturer as a valve to protect pumps fitted to systems where hot water temperature is uncontrolled.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #008377CF; border-radius:8px; margin:0 0 10px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; padding:12px 16px; font-weight:700; cursor:pointer; font-size:16px;\"\u003eWhich systems need it?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:15px; line-height:1.65; background:#ffffff;\"\u003eSystems where stored hot water temperature cannot be efficiently controlled: \u003cstrong\u003eAga or solid fuel appliances\u003c\/strong\u003e, \u003cstrong\u003esolar panels\u003c\/strong\u003e, \u003cstrong\u003eair source heat pumps\u003c\/strong\u003e or boilers controlled only crudely by the boiler thermostat. In these cases the manufacturer's guide says an approved HWS TMV must be used.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #008377CF; border-radius:8px; margin:0 0 10px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; padding:12px 16px; font-weight:700; cursor:pointer; font-size:16px;\"\u003eWhat temperature is it set to?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:15px; line-height:1.65; background:#ffffff;\"\u003eIt is supplied pre-set at \u003cstrong\u003e55 °C\u003c\/strong\u003e. CT Xtra, CT Bathroom and CT Force pumps have a maximum water temperature of \u003cstrong\u003e60 °C\u003c\/strong\u003e.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #008377CF; border-radius:8px; margin:0 0 10px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; padding:12px 16px; font-weight:700; cursor:pointer; font-size:16px;\"\u003eIs it an anti-scald valve for taps and showers?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:15px; line-height:1.65; background:#ffffff;\"\u003eNo. It is specified to protect pumps, not as a point-of-use anti-scald device, and no TMV2 or TMV3 approval is stated. Use a suitably approved thermostatic mixer or TMV at the outlet where required.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #008377CF; border-radius:8px; margin:0 0 10px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; padding:12px 16px; font-weight:700; cursor:pointer; font-size:16px;\"\u003eWhat connections does it have?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:15px; line-height:1.65; background:#ffffff;\"\u003eIt comes complete with connectors for \u003cstrong\u003e22 mm compression\u003c\/strong\u003e pipework.\u003c\/div\u003e\u003c\/details\u003e\n\u003cdetails style=\"border:1px solid #008377CF; border-radius:8px; margin:0 0 10px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; padding:12px 16px; font-weight:700; cursor:pointer; font-size:16px;\"\u003eWhere can I get installation advice?\u003c\/summary\u003e\u003cdiv style=\"padding:14px 16px; font-size:15px; line-height:1.65; background:#ffffff;\"\u003eFollow the manufacturer's CT pump installation and warranty guide, which includes the HWS blending valve controller arrangement, and note the guide recommends usable cold water storage of at least 50 gallons per bathroom. The PumpWise technical helpline is available on 0191 516 2002.\u003c\/div\u003e\u003c\/details\u003e\n\n\u003c\/div\u003e","brand":"Salamander","offers":[{"title":"Default Title","offer_id":65601019085149,"sku":"HWSTMV","price":153.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SalamanderHWSTMVThermostaticMixingValve22mmCompression.jpg?v=1791452654","url":"https:\/\/qualityheating.co.uk\/products\/salamander-hws-tmv-thermostatic-mixing-valve-22mm-compression","provider":"AIZO Quality Heating","version":"1.0","type":"link"}