The groove type signal butterfly valve is a kind of valve that opens, closes or regulates the medium flow by rotating the disc opening and closing part about 90°. The butterfly valve is not only simple in structure, small in size, light in weight, low in material cost, small in installation size, small in driving torque, simple and quick in operation, but also has good flow regulation function and closing sealing characteristics. Butterfly valves are widely used. Its variety and quantity continue to expand, and to high temperature, high pressure, large caliber, high sealing, long life, excellent regulating characteristics and a valve multi-function development change. Its reliability and other performance indicators have reached a high level.
The butterfly valve is suitable for the bidirectional opening and closing and adjustment of the ventilation and dust removal pipeline, and is widely used in the gas pipelines and waterways of metallurgy, light industry, electric power and petrochemical systems.
| model | Nominal diameter | Ordinary taper pin | nut | Hexagon Head Bolts(1) | Hexagon head bolts (2) | Half round key | C | |
| mm | BxC | quantity | M | MxH | MxH | TxP | ||
| D81X-16 | 65 | A4x35 | 1 | M6 | M6X20 | M8X10 | 3X16 | 103土2 |
| 80 | A4x35 | 1 | M6 | M6X20 | M8X10 | 3X16 | 103土2 | |
| 100 | A5x45 | 1 | M10 | M10X25 | M8X10 | 5X19 | 118土2 | |
| 125 | A6x50 | 1 | M10 | M10X25 | M8X10 | 5X19 | 128士2 | |
| 150 | A6x50 | 1 | M10 | M10X25 | M8X10 | 5X19 | 150土2 | |
| 200 | A6x60 | 2 | M12 | M10X30 | M8X15 | 5X19 | 188土2 |
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