Ball Mill Guide Maintenance

2019-5-23a ball valve may be unidirectional, bidirectional, or multi-directional, depending on the number of valve ports and the number of valve seatsherefore, ball valves are referred to as 2-way, 3-way, 4-way, or 5-way multi-port valves 2-way ball valve with a single seat will be unidirectional with the flow direction indicated.

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