{"product_id":"bell-gossett-117685lf-tsb-3-4c-temp-setter-thermostatic-balance-valve","title":"Bell \u0026 Gossett 117685LF TSB-3\/4C Temp Setter Thermostatic Balance Valve","description":"\u003cp\u003eMaintain consistent water temperatures throughout your plumbing infrastructure with the Bell \u0026amp; Gossett 117685LF TSB-3\/4C Temp Setter thermostatic balance valve. Designed for efficiency and precision, this unit (model \u003cb\u003eTSB-3\/4C\u003c\/b\u003e, part number \u003cb\u003e117685LF\u003c\/b\u003e) automatically regulates the minimum temperature of recirculating fluids to prevent cold spots and system instability in commercial or residential domestic hot water circuits.\u003c\/p\u003e\u003cp\u003eThe internal thermostatic element acts as a precision sensor that adjusts flow rates based on fluid temperature. By dynamically modulating the return flow, the valve ensures that each branch of the recirculating system receives the required amount of hot water, effectively balancing the heat distribution and minimizing energy waste caused by over-circulation.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThermal Precision:\u003c\/b\u003e Automatically maintains pre-set minimum return temperatures for balanced loop operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEnergy Efficiency:\u003c\/b\u003e Reduces system heat loss and minimizes the load on primary water heaters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEnhanced Comfort:\u003c\/b\u003e Eliminates lag times for hot water delivery at the point of use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDurable Construction:\u003c\/b\u003e Built for long-term reliability in demanding hydronic environments.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for domestic hot water recirculation systems, multi-story commercial buildings, healthcare facilities, and apartment complexes requiring consistent thermal regulation and reduced piping corrosion.\u003c\/p\u003e","brand":"Bell \u0026 Gossett","offers":[{"title":"Default Title","offer_id":43124153319518,"sku":"117685LF","price":349.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/117685LF_image_3cbc9fad-b60c-47b8-9090-acac1546832b.png?v=1786033590","url":"https:\/\/nationalboilersupply.com\/products\/bell-gossett-117685lf-tsb-3-4c-temp-setter-thermostatic-balance-valve","provider":"National Boiler Supply","version":"1.0","type":"link"}