dn250 butterfly valve
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DN250 NBR Seat Iron Butterfly Valve
The DN250 wafer butterfly valve have small size and light weight. Easy instllation and mintenance. Itcan be mounted wherever nedded. The NBR seat butterfly valve siple and compact construction, small torque when open and close,quick go degrees on-off operation. This kind of butterfly valve is energy saving and flow curve tending to straight line. Excellent regulation performance and long service life. Standing the test of tens of thousands openingclosing operations.
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