KR VAVLE
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| Valve Type: | Wafer butterfly valve | Structure: | Concentric |
| Standard: | EN593 | Workmanship: | Investment casting |
| Sealing Direction: | Bidirectional | Sealing Grade: | Zero leakage |
| Temperature: | -20°C < T < 120°C | Operation: | Pneumatic |
Pneumatic butterfly valves use compressed air as their power source. When compressed air enters the pneumatic actuator, it pushes the piston or gear rack and other components inside the actuator to move, which in turn drives the valve stem and butterfly plate to rotate, achieving the opening or closing of the valve. By installing a valve positioner, the rotation angle of the butterfly plate can also be controlled, thereby accurately adjusting parameters such as flow rate and pressure of the medium in the pipeline.
| Body | Disc | Stem | Bushing | Seat | ||||
| Name | Code | Name | Code | Name | Name | Name | Code | Working temp |
| Cast iron | Z | Plated ductile iron | B1 | Stainless steel | Lubrized bronze | NR | X1 | -20~+85℃ |
| Ductile iron | Q | Aluminum bronze | B2 | Hypalon | X2 | -23~+121℃ | ||
| Aluminum bronze | T | ZG1Cr18Ni9Ti SS | B3 | EPDM | X3 | -23~+121℃ | ||
| ZG1Cr13Ni9Ti SS | P | Titanium steel | B4 | Neoprene | X4 | -7~+93℃ | ||
| CF8M Stainless | R | CF8M Stainless | B5 | NBR | X5 | -23~+100℃ | ||
| Carbon steel | C | Carbon steel | B6 | VITON | X7 | -23~+200℃ | ||
| CF8 Stainless | - | CF8 Stainless | B7 | PTFE | F4 | +10~+150℃ | ||
| DN(mm) | DN(inch) | A | B | C | D | L | H | D1 | n-Φ | K | E |
| 50 | 2" | 161 | 80 | 42 | 52.9 | 32 | 84.84 | 120 | 4-Φ23 | 77 | 57.15 |
| 80 | 3" | 181 | 95 | 45.2 | 78.8 | 32 | 61.23 | 160 | 8-Φ18 | 77 | 57.15 |
| 100 | 4" | 200 | 114 | 52.1 | 104 | 32 | 70.80 | 185 | 4-Φ24.5 | 92 | 69.85 |
| 150 | 6" | 226 | 139 | 55.8 | 155.6 | 32 | 91.08 | 238 | 4-Φ25 | 92 | 69.85 |
| 200 | 8" | 260 | 175 | 60.6 | 202.5 | 45 | 112.89 | 295 | 4-Φ25 | 115 | 88.9 |
| 300 | 12" | 337 | 242 | 76.9 | 301.6 | 45 | 105.34 | 407 | 4-Φ29 | 140 | 107.95 |
The application scope covers multiple fields such as municipal engineering, industrial manufacturing, and people's livelihood supporting facilities. The core revolves around the on/off control and flow regulation of fluid media, especially suitable for working conditions with limited space and requiring automated operation.
Standard export wooden case packaging is used to ensure the safety of the valves during international transit.
