Tonheflow motorized valve manufacturer
Tonhe mainly produces motorized shut off ball valve from 1/4" to 2",
Some valves approved NSF61-G, CE, ROHS and other international certification.
News and Technical
3 wire one control CR303 and 3 wire two control CR301 motorized ball valve difference
Three-wire two control and three-wire one control are three-wire system electric valve wiring mode, are three-wire control electric valve switch, the difference is that they control electric valve switch mode is different. Three-wire two control is actually three-wire (valve opening, valve closing, zero line), when the valve is opened when the valve line and zero line are connected, when the valve is closed when the valve line and zero line are connected, whether the valve is opened or closed in place is power off. Three-wire control relies on a single line to control the opening and closing valves. From the point of production cost, the three-wire two control is a little higher, because the three-wire two control internal use two-way synchronous motor, rather than one-way motor, said simply equivalent to two single-phase motors
Three wire two control means that one of the three lines is the valve opening line, one is the valve closing line, and the other is the zero line; Three-wire one-control means that one of the three lines is the valve line, and the other two are connected with zero and fire lines.
Taizhou Tonhe Flow Control Co.,Ltd
Add: Xincheng Road 1012, Huangyan, Taizhou, Zhejiang, China
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