Sensitivity - FAQs | Sink & Top Water Shut-Off Plumbing Valves Manufacturer | Geann

Sensitivity test is the accuracy of controlling temperature, and how to design the ceramic disc is the key to sensitivity. Although the temperature would be affected with the length of handle, in the stage of design, we put the water back flow and sealing area into consideration to ensure the high sensitivity. Especially between 34°C and 42°C, we have the best sensitivity than any other manufacturer in the world. SENSITIVITY REQUIREMENT FOR EUROPEAN MARKET According to the standard of EN817, which is most followed by European market, the test range of temperature is from 34°C to 42°C. This range is most frequently adopted by users. Except for the temperature, the water supply pressure is 0.3±0.02Mpa (3±0.2bar) and operate the handle by 0.5 degree per second, we record the variety details. When the temperature control device reaches the end of its movement, return the device to its starting position, and turn these records into the sensitivity curve. From 34°C to 42°C，The minimum amplitude movement of basin/sink control device is 10mm; shower/bath control device is 12mm. Geann’s Single Level Cartridge provides 20° operational angle at 34°C to 42°C temperature range. Our Single Level Cartridge offers wide range for users to adjust temperature between 34°C to 42°C. It means users could fine-tuning the temperature they want by using Geann High Sensitivity Cartridge. Geann is a high-quality Two Handle Faucet Ceramic Cartridge, Plumbing Valve, Single Lever Mixing Cartridge, Diverter Valve, Thermostatic Mixing Valve, Anti-Scald Cartridge manufacturer from Taiwan since 1979. Geann Industrial Co., Ltd. with more than 40 years of experience on Ceramic Valve Cartridge, Plumbing valve and OEM / ODM precision parts to provide high quality products, flexible service and competitive prices to our customers.