1）Novel structural design, small overall size and light weight; 2）The butterfly plate and valve body adopt the center symmetrical structure, the sealing is reliable, and the two-way full pressure and zero leakage are realized; 3）The valve stem can be opened and closed by 90° rotation, and the flow can be adjusted arbitrarily within the range of 0°~90°; 4）In addition to the handle worm gear drive, it can also realize electric, pneumatic, hydraulic and electric and hydraulic linkage; 5）The flow characteristics tend to be proportional to the characteristics, and the adjustment performance is good. 6）Small flow resistance and small pressure loss. 7）The valve seat is lined, which can prevent the medium from corroding the valve passage. 8）The operation mode is a worm gear reducer, which is easy to operate and labor-saving.
Product introduction
The handle/worm gear midline soft seal wafer butterfly valve is a valve designed completely based on the principle of symmetry, with axial midline symmetry, radial center symmetry, bidirectional full pressure seal, the connection method is wafer connection, and the actuator is a worm gear box. It can be used in pipelines of metallurgy, chemical industry, electric power, municipal engineering and water supply and drainage system. The medium is water, oil, air, etc., which can cut off and adjust the flow of the medium.
Mainly based on the standard
1) Design and manufacture standard: GB/T12238-2008
2) Connection flange standard: GB/T9113-2010, GB/T17241.6-2010 (iron)
3) Structure length standard: GB/T12221-2005
4) Pressure test standard: GB/T13927-2008
Main performance specifications
|
Nominal pressure PN (MPa) |
Test pressure MPa |
Working temperature (℃) |
Applicable medium |
|
|
strength |
seal |
|||
|
1.0 |
1.5 |
1.1 |
≤80℃ |
water, air, oil, etc. |
|
1.6 |
2.4 |
1.76 |
||
Material of main parts
|
Part Name |
Body |
Butterfly plate |
Valve seat |
Stem |
|
Material |
Ductile Iron Stainless steel carbon steel |
Ductile Iron Stainless steel carbon steel |
EPDM NBR |
Stainless steel carbon steel |
Structure diagram
