The handle butterfly valve has the advantages of simple structure, small volume and light weight. It is only composed of a few parts. Moreover, it can be opened and closed quickly by rotating 90 °, which is simple to operate. At the same time, the valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body. Therefore, the pressure drop generated through the valve is very small, so it has good flow control characteristics
Body/ Bonnet | Cast Iron |
Disc | Stainless Steel |
Stem | Stainless Steel |
Seat Ring | EPDM, / NBR |
DN | L | Zxфd | D0 |
50 | 43 | 2xф19 | 120 |
65 | 46 | 2xф19 | 140 |
80 | 46 | 2xф19 | 150 |
100 | 52 | 2xф19 | 175 |
125 | 56 | 2xф23 | 210 |
150 | 56 | 2xф23 | 240 |
200 | 60 | 2xф23 | 290 |
250 | 68 | 2xф25 | 355 |
300 | 78 | 2xф25 | 400 |
350 | 78 | 2xф25 | 445 |