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What are the main categories of mixers?
Mixing valves are mainly divided into underfloor heating mixing valves and automatic thermostatic water-saving mixing valves.
Underfloor heating mixer
Once the primary-side water temperature exceeds the set temperature, the electric valve closes halfway, reducing the inlet water flow by half. The pump then starts circulating, allowing the system’s return water to re-enter the primary side and circulate repeatedly, thereby achieving the function of cooling and mixing the water.
Primarily used in low-temperature underfloor heating systems under centralized urban heating conditions. 
Automatic Thermostatic Water-Saving Mixer
Chengde Longzhida Intelligent Instruments and Meters Technology Co., Ltd. The mixer developed by us boasts first-class quality, intelligent features, and automatic water temperature control, making it convenient for water and energy conservation. It features high reliability, strong anti-interference capability, and a long service life. The temperature-control range is wide with exceptional precision. Its compact size and easy installation help save both raw materials and building space. Equipped with digital display, it offers intuitive and straightforward operation and includes over- and under-temperature alarms. This mixer effectively conserves water resources, achieves temperature-control accuracy as high as 0.5℃, and consumes minimal energy—earning unanimous praise from users.
Longzhida Company Successfully Hosted the Victory Parade Commemorating the War of Resistance.
Longzhida Company Successfully Hosted the Victory Parade Commemorating the War of Resistance.
Today is a day that every Chinese person should solemnly remember—the 80th anniversary of the victory of the Chinese People’s War of Resistance Against Japanese Aggression and the World Anti-Fascist War.
On July 2, Chengde Longzhida Company held a meeting with the Sino-German Institute. After thorough discussions between the two sides, Mr. Bai, General Manager of Longzhida Company, and the faculty team from the Sino-German Institute reached a consensus: Longzhida Company officially entrusted the Sino-German Institute to carry out the design and R&D work for a new type of ultrasonic water meter.
On May 30, Longzhida Company successfully held an exceptionally meaningful event titled “Welcoming the Eighth ‘National Science and Technology Workers’ Day’: Promoting the Spirit of Scientists.”
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Add：No.3, longzhida Road, electronic industrial park, high tech Industrial Development Zone, Chengde City, Hebei Province
Hotline: +86-15930084101
After-sales installation: +86-314-7018122
Product inquiry purchase: +86-314-2078138
After-sales maintenance: +86-314-7018122
E-mail: 310540860@qq.com
Website: www.cdlong.com
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