Avonflow Baiyilun TRV Co.,ltd (Wenzhou Baiyilun Hardware Products Co., Ltd.) specializes in constant temperature control valves used in pressure temperature regulators of city heating and hot water systems. Our valves are automatic constant temperature control valves which don't need exterior energy while automatically controlling indoor temperature. Our products can not only save energy but also protect environment and create a suitable indoor temperature for you.



Our thermostatic valves are manufactured and tested according to GB/T13927-92 and EN215-1 standards. Our...