D71J clamp type rubber lined butterfly valve/D671J pneumatic rubber lined butterfly valve/D971J electric rubber lined butterfly valve has a compact structure,easy 90°rotary switch,reliable sealing,and long service life.It is widely used in water plants,power plants,steel mills,papermaking,chemical,catering and other systems for water supply and discharge,as well as for regulating and shut-off purposes.
Characteristics of clamp type rubber lined butterfly valve products
1.This valve adopts a double eccentric structure,which has a sealing function that becomes tighter as it is closed,and the sealing performance is reliable.
2.The sealing auxiliary material is paired with stainless steel and nitrile oil resistant rubber,which has a long service life.
3.The rubber sealing ring can be located on the valve body or on the butterfly plate,and can be suitable for different characteristics of media for users to choose from.
4.The butterfly plate adopts a frame structure,with high strength,large overcurrent area,and low flow resistance.
5.The overall baking paint can effectively prevent rust and can be used in different media as long as the sealing material of the valve seat is replaced.
6.This valve has a bidirectional sealing function and is not controlled by the flow direction of the medium or the spatial position during installation.It can be installed in any direction.
7.The rubber lined butterfly valve has a unique structure,flexible operation,labor-saving,and convenience.
Scope of application of sealing materials for clamp type rubber lined butterfly valves

Main component materials of clamp type rubber lined butterfly valve

test
Lining layer: Electric spark detection
Testing and inspection shall be conducted in accordance with GB/T13927 standard
Nominal pressure: PN (MPa)
Valve body: PN × 1.5
Sealing: PN × 1.1
Basic model of clamp type rubber lined butterfly valve

Design standard for clamp type rubber lined butterfly valve
Design and Manufacturing: GB12238
Structural length: GB12238
Flange connection size: GB4216

Parts list: 1. Valve body 2. Valve seat 3. Butterfly plate 4. Valve stem 5. Worm gear device
Main external dimensions of clamp type rubber lined butterfly valve