1) Novel structure 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.
Introduction
The centerline soft sealing flange butterfly valve is a flanged connection valve designed completely according to the principle of symmetry, with axial centerline symmetry, radial center symmetry, and bidirectional full pressure seal. It can be used in metallurgical, chemical, electric power, municipal engineering and water supply and drainage systems and other pipelines. The medium is water, oil, air, etc. It plays the role of cutting off and regulating the flow of the medium.
Implement the standard
1) Design and manufacture standard: CJ/T261-2015
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 (Mpa) |
Shell test pressure MPa |
Seal test pressure MPa |
Working temperature (℃) |
Applicable medium |
|
1.0 |
1.1 |
1.5 |
≤80℃ |
water, oil, etc. |
|
1.6 |
1.76 |
2.4 |
Parts material
|
Part Name |
Body, Butterfly plate |
Stem |
Valve seat |
Filler |
|
Material |
Ductile Iron Cast steel, stainless steel |
Medium carbon steel, stainless steel |
Nitrile rubber EPDM |
Nitrile rubber EPDM |
Structure diagram
