... have strong ability to adapt to the market, blue water automatic control valves in this aspect have the ability of prominent, serve ... in hot water systemBLUEWATER control valves (6600, 6800, 7800, 8600, 8,800) are optional as hot water system (temperature ≤65 °C, 150 ... effluent pipeline, do not let without handle hard water system, the BLUEWATER control valves, all can choose no hard water bypass.6 ...