1) The grooved structure has novel 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 clip connection, the installation is quick and convenient.
Introduction
The midline soft sealing wafer signal butterfly valve is a kind of wafer connection valve which is completely designed according to the principle of symmetry. It is symmetrical to the axial centerline, radial centerline, two-way full pressure seal, with a signal device, which can give the valve action. It is mainly used in various pipelines of water supply and drainage, building fire protection and other systems, especially in fire protection pipelines, to cut off and adjust the flow of the medium.
Implement the standard
1) Design and manufacture standard: GB/T5135.6-2003
2) Connection size: GB/T5135.6-2003
3) Structure length standard: GB/T12221-2005
4) Pressure test standard: GB/T13927-2008
Main technical parameters
|
Nominal pressure (Mpa) |
Shell test pressure MPa |
Sealing test pressure MPa |
Applicable temperature (℃) |
Applicable medium |
|
1.6 |
2.4 |
1.76 |
≤80℃ |
water, oil, etc. |
Material of main parts
|
Part Name |
Body,Butterfly |
Stem |
Valve seat |
Filler |
|
Material |
Ductile Iron |
Stainless steel |
EPDM |
EPDM |
Structure
