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Accumulator type hydraulic control slow closing butterfly check valve is  more advanced pipeline control equipment both domestic and abroad, mainly installed in the entrance of hydropower turbines as turbine inlet valve，or installed in the pump outlet of water conservancy, electricity, drainage and others of pumping station to replace the check valve and gate valve. When working, the valve together with piping host play a protective role in the pipeline system security
Features:
1、The valve has a complete hydraulic system and electrical control system, can be operated locally, but also long-distance operations；
2、The valve main seal pair with three eccentric metal seal or rubber seal double eccentric structure, opening and closing torque is small, with good self-closing, self-sealing performance, reliable seal, stable and reliable performance；
3、The valve can be seal compensation adjusted through screw after rubber seal is worn；
4、Using non-lead, non-oil self-lubricating bearings with strong bearing capacity and good wear resistance；