{"product_id":"mechanical-blending-valve","title":"Mechanical Blending Valve","description":"\u003ch1\u003eMechanical Blending Valve for Industrial Water Softeners (DN25, DN32 \u0026amp; DN50)\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eMechanical Blending Valve\u003c\/strong\u003e is a fully automatic mixing valve designed for use with commercial and industrial water softeners to produce a controlled level of \u003cstrong\u003epartially softened water\u003c\/strong\u003e. Suitable for \u003cstrong\u003eDN25 (1\"), DN32 (1¼\") and DN50 (2\")\u003c\/strong\u003e pipework, the valve maintains a consistent residual hardness across a wide range of flow rates without the need for electrical power or continual adjustment.\u003c\/p\u003e\n\u003cp\u003eSpecifically developed for \u003cstrong\u003elarge-scale water softening installations\u003c\/strong\u003e, the valve automatically blends a controlled proportion of untreated raw water with softened water leaving the softener. Once the desired residual hardness has been set during commissioning, the valve continuously compensates for changing flow rates and pressure variations, ensuring a stable blended water quality under varying demand conditions.\u003c\/p\u003e\n\u003cp\u003eUnlike simple manual bypass arrangements, the Mechanical Blending Valve incorporates both a \u003cstrong\u003emain blending valve\u003c\/strong\u003e and an independent \u003cstrong\u003ebypass valve\u003c\/strong\u003e. During periods of low demand, the bypass valve meters a precise quantity of raw water into the softened water stream. As water consumption increases and differential pressure develops across the softener, the main valve progressively opens to maintain the required blending ratio automatically. This hydraulic balancing principle provides accurate residual hardness control throughout the operating range.\u003c\/p\u003e\n\u003cp\u003eThe valve is installed within the bypass line of the water softener, with water flowing in the indicated direction. For installations requiring both blended water and fully softened (0 °dH) water, a dedicated shut-off valve with sampling point should be installed to allow accurate hardness testing during commissioning and maintenance.\u003c\/p\u003e\n\u003cp\u003eManufactured for industrial applications, the valve is suitable for \u003cstrong\u003edomestic, commercial and industrial water treatment systems\u003c\/strong\u003e, operating at pressures up to \u003cstrong\u003ePN10\u003c\/strong\u003e and temperatures up to \u003cstrong\u003e90°C\u003c\/strong\u003e. Its purely mechanical operation eliminates the need for electrical controls, making it a reliable solution for maintaining consistent water hardness in demanding installations.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specification\u003c\/h2\u003e\n\u003ch3\u003eAvailable Sizes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eDN25 – 1\" Female BSP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDN32 – 1¼\" Female BSP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDN50 – 2\" Female BSP\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOperating Conditions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eMaximum working pressure: \u003cstrong\u003ePN10 (10 bar)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaximum operating temperature: \u003cstrong\u003e90°C\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFully automatic hydraulic operation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNo electrical power required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for household, commercial and industrial applications\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFunction\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eAutomatically blends softened water with untreated raw water\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaintains constant residual hardness\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAutomatically compensates for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eVariable flow rates\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePressure fluctuations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eChanging water demand\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSingle commissioning adjustment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eInstallation orientation independent\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eOperating Principle\u003c\/h2\u003e\n\u003cp\u003eThe blending valve continuously regulates the quantity of untreated water entering the softened water stream.\u003c\/p\u003e\n\u003cp\u003eAt \u003cstrong\u003elow water demand\u003c\/strong\u003e, blending is achieved via the bypass valve alone.\u003c\/p\u003e\n\u003cp\u003eAs flow increases, pressure loss across the water softener creates a differential pressure that progressively opens the main valve, allowing additional raw water to enter the mixed water stream. This automatic modulation maintains a stable residual hardness regardless of fluctuations in system demand.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eInstallation\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eInstalled in the water softener bypass line\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eObserve flow direction arrow during installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for any installation orientation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRecommended to install a sampling valve where accurate hardness testing is required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eResidual hardness should be verified using a water hardness test kit during commissioning\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf incoming raw water hardness changes significantly, the blending valve should be re-adjusted to maintain the desired outlet hardness.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eAutomatic residual hardness control\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHydraulic operation with no electrical components\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eDesigned for commercial and industrial softeners\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaintains consistent blended water quality\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAutomatically compensates for pressure and flow changes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSuitable for high-temperature applications up to 90°C\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaximum operating pressure PN10\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAvailable in DN25, DN32 and DN50 sizes\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRobust brass construction\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSimple commissioning with one-time adjustment\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMinimal maintenance requirements\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eTypical Applications\u003c\/h2\u003e\n\u003cp\u003eIdeal for systems where complete softening is not desirable, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eCommercial water softeners\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eIndustrial water treatment systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBoiler feed water conditioning\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHeating systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProcess water\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eManufacturing plants\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHotels\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHospitals\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFood processing\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCommercial laundries\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eBreweries\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eLarge residential developments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy Choose a Mechanical Blending Valve?\u003c\/h2\u003e\n\u003cp\u003eMany commercial installations require a controlled level of residual hardness rather than completely softened water. This Mechanical Blending Valve provides a reliable hydraulic solution that automatically maintains the selected hardness without electronic controls or frequent adjustment. By responding directly to system flow and pressure conditions, it delivers consistent blended water quality across varying operating conditions while simplifying commissioning and long-term maintenance.\u003c\/p\u003e","brand":"GAPS Water Treatment Ltd","offers":[{"title":"1\" (DN 25)","offer_id":57723519500670,"sku":"11299000064 | 1900000078","price":432.9,"currency_code":"GBP","in_stock":true},{"title":"1 1\/4\" (DN 32)","offer_id":57723519533438,"sku":"11299000062 | 1900000076","price":524.55,"currency_code":"GBP","in_stock":true},{"title":"2\" (DN 50)","offer_id":57723519566206,"sku":"11299000063 |  1900000077","price":670.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0648\/3227\/4627\/files\/mechanaicalblendingvalve.png?v=1784805547","url":"https:\/\/www.gapswater.co.uk\/products\/mechanical-blending-valve","provider":"GAPS Water Treatment Ltd","version":"1.0","type":"link"}