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: | Gear box |
This gear box operated butterfly valve employs a wafer connection method, being fastened between two pipeline flanges with double-headed bolts. Its structure is compact, with a small footprint and lightweight design. The worm gear transmission mechanism is mounted at the valve’s top as standard to ensures reliable operation. Additionally, the valve is engineered with a concentric layout, where the valve stem, butterfly plate, and valve body share a common central axis.
Standard export wooden case packaging for safe transportation.
This valve finds broad application in general industries such as petroleum, gas, chemical, and water treatment, as well as in thermal power plant cooling water systems. Furthermore, it is applicable to pipeline systems in metallurgy, municipal engineering, and related sectors, serving to cut off or regulate the flow of media including air, water, steam, and oils.
| Body | Plate | Shaft | Bushing | Seat | Temp Range (°C) |
|---|---|---|---|---|---|
| Ductile Iron | Ductile Iron | Stainless Steel | PTFE | EPDM Rubber | -45 to +135 |
| Ductile Iron | Stainless Steel | Carbon Steel | PTFE | Hypalon | -18 to +135 |
| Aluminum Bronze | Titanium Steel | - | - | EPDM Rubber | -45 to +135 |
| Stainless Steel | CF8M Stainless | - | - | Neoprene | -7 to +93 |
| Carbon Steel | CF8M Stainless | - | - | NBR Rubber | -12 to +82 |
| - | - | - | - | Fluororubber | -23 to +150 |
| - | - | - | - | PTFE | +10 to +150 |
| DN | A | B | L | D1 | K | G | |
| mm | inch | ||||||
| 50 | 2" | 161 | 80 | 32 | 120 | 77 | 118 |
| 80 | 3" | 181 | 95 | 32 | 160 | 77 | 143 |
| 100 | 4" | 200 | 114 | 32 | 185 | 92 | 156 |
| 150 | 6" | 226 | 139 | 32 | 238 | 92 | 212 |
| 200 | 8" | 260 | 175 | 45 | 295 | 115 | 268 |
| 300 | 12" | 337 | 242 | 45 | 407 | 140 | 403 |
