{"product_id":"belimo-tr24-3us-characterized-control-valve-24-vac-18-in-lb-nema-1","title":"Belimo TR24-3US Characterized Control Valve 24 VAC 18 in-lb NEMA 1","description":"\u003cdiv\u003e\u003cp\u003eBelimo TR24-3 US Characterized Control Valve (CCV) with a 24 V AC non-fail-safe actuator delivers 18 in-lb of torque to directly operate a 1\/2\" (DN 15) or 3\/4\" (DN 20) ball valve. This 2‑way CCV uses On\/Off, floating-point control and 90° rotation, designed for direct mounting on the valve with a single mounting screw for straightforward integration in HVAC piping. The actuator is housed in a NEMA 1\/IP40 enclosure and ships with a plenum-rated 18 AWG control cable, typically 3 m long, to simplify wiring to a building automation system. Electrical characteristics specify a 24 VAC nominal input (range 19.2–28.8 VAC) with about 1 W of power draw, and it operates in ambient temperatures from -30°C to 50°C (-22°F to 122°F) with 5–95% non-condensing humidity. The device is non‑spring return (non‑fail-safe), meaning it does not automatically return to a fail-safe position when power is removed. Valve sizing details show Cv values of roughly 0.8 for the 1\/2\" DN15 variant and about 4.7 for the 3\/4\" DN20 variant, reflecting the different flow capacities of the valve bodies it couples with. In practice, this TR24-3 US configuration appears in Belimo’s CCV family as B217+TR24-3 US variants and is compatible with typical 24 V, On\/Off control schemes used in modern HVAC controls. \u003c\/p\u003e\u003c\/div\u003e","brand":"Belimo","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51676861628718,"sku":null,"price":46.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_46659ac6-f995-4d5e-8fba-c9684a6f1834.jpg?v=1769554451","url":"https:\/\/plgautomation.com\/products\/belimo-tr24-3us-characterized-control-valve-24-vac-18-in-lb-nema-1","provider":"PLG Automation ","version":"1.0","type":"link"}