Throttling Type Butterfly Valve
The throttle butterfly valve has the characteristics of lightweight, compact structure, small flow resistance, large rated flow coefficient, simple use, convenient maintenance and low price. Its action needs to be equipped with a pneumatic or electric actuator to drive, DN600～2000 throttle butterfly valve can adopt pneumatic adjusting butterfly valve body part. There is some feature:
1.The butterfly plate sealing ring is a soft and hard laminated metal sheet, which has the dual advantages of metal sealing and elastic sealing. It has excellent sealing performance regardless of low temperature and high temperature.
2.Using a three-dimensional eccentric structure, the valve seat and the butterfly plate have no friction and have a tighter sealing function.
3.The sealing surface of the valve body is made of surfacing cobalt-based cemented carbide, the sealing surface is wear-resistant and has a long service life.
4.Unique structure, flexible operation, labour-saving and convenient, not affected by the high and bottom pressure of the force medium, reliable sealing performance and long service life.
Product characteristic of throttling item butterfly valve:
Size: DN100-DN500
Nominal pressure:0.1 MPa
Applicable temperature: normal temperature -20 ~ 250℃ medium temperature -40 ~ 450℃
Body material: cast iron
Applicable temperature:-20 ~ 200℃
Applicable medium: air, smoke, etc
Rated stroke: 90°
Leakage rate: 2%
Standard of throttling with butterfly valve:
Size chart of butterfly valves be used for throttling:
| DN | 100 | 125 | 150 | 175 | 200 | 225 | 250 | 300 | 350 | 405 | 500 | |
| D1 | 170 | 200 | 225 | 255 | 280 | 305 | 335 | 395 | 445 | 495 | 550 | 600 |
| n-Φd | 4-Φ18 | 8-Φ18 | 8-Φ23 | 12-Φ23 | 16-Φ23 | |||||||
| Β | 56 | 70 | ||||||||||
| L | 330 | 356 | 375 | 405 | 425 | 450 | 480 | 570 | 578 | 668 | 735 | 775 |
| L1 | 130 | 143 | 150 | 167 | 175 | 187 | 205 | 248 | 231 | 296 | 321 | 336 |
| Η | 110 | 120 | 135 | 146 | 130 | 145 | 158 | 185 | 210 | 235 | 262 | 288 |
| A | 27 | 27 | 27 | 27 | 88 | 100 | 118 | 140 | 150 | 160 | 225 | 240 |
| C | 54 | 54 | 54 | 54 | 45 | 45 | 45 | 60 | 65 | 60 | 65 | 65 |
| weight(kg) | 10 | 11 | 12 | 13 | 14 | 18 | 22 | 30 | 37 | 40 | 50 | 60 |
Certifications
FAQ
1/We have many experiences with OEM work.
2/We can customize special hardware as customer demand.
3/Technical service for assembling.
4/Variety types for selection, prompt deliver.
5/Well-equipped with an extensive sales network.
6/Advanced Production equipment and production technique.
7/Competitive Price (Factory direct price) with our good service.
8/Different designs are available according to customer requests.
9/Excellent quality testing equipment, 100% inspection on critical.
Other Valves
