General characteristics
1.Double eccentric structure is adopted, with the sealing function of closer and tighter, and the sealing performance is reliable.
2.The sealing pair material is stainless steel and NBR oil resistant rubber, with long service life.
3.The rubber seal ring can be located on the valve body or the butterfly plate. It can be applied to different media for users to choose.
4.The butterfly plate adopts frame structure with high strength, large flow area and small flow resistance.
5.The whole baking paint can effectively prevent corrosion and can be used in different media as long as the sealing material of sealing valve seat is replaced.
6.The valve has a two-way sealing function, which is not controlled by the flow direction of the medium during installation and is not affected by the space position. It can be installed in any direction.
7.The valve has unique structure, flexible operation, labor saving and convenience.

Marine pneumatic butterfly valve is widely used in ships, ships, cruise ships and Marine engineering pipeline system, due to the limitation of pipeline space and environment on ships and Marine engineering, ordinary butterfly valve operation and environment can not fully meet and adapt to its needs.This product volume small, the occupied space is limited, and can remote control operation, can also remote control operations after and remote control system for connection, such as the ship gas source and there was a loss of source state power, the product can be butterfly valve opening and closing in situ work at the same time, this product is simple resource acquisition (compressed air), butterfly valve opening and closing sensitive (opening and closing speed 1-3 seconds), remote control system is equipped with open/close state signals, fault alarm and low pressure alarm, such as the original, and can also be through the interface connected to the computer remote control operation.Puzou products include remote control box, control buttons, pneumatic drive head, local operation drive mechanism, travel limit switch, valve body, butterfly plate, valve stem, seat ring and other components, products can be provided in accordance with ISO standards, JIS standards and GB standards and various specifications for users to choose.

Marine GB/T3037-1994 double eccentric type pneumatic butterfly valve, the production standard, JIS standard, DIN, ANSI, JIS, GB GB, CB ship mark, nominal diameter (- DN500, nominal pressure PN6 - PN16 flange standard: GB596 GB2501 valve body material: cast iron, nodular cast iron QT450, SUS stainless steel, bronze BZ, valve material: stainless steel SUS, bronze BZ, seat: nitrile butadiene rubber, NBR, EPDM rubber, EPDM, FKM fluorine rubber.