


Size of butterfly valve:
| Pressure grade | From | To |
| PN10 | 2 | 20 |
| PN16 | 2 | 20 |
Working pressure and temperature of butterfly valve:
| Working temperature | ||
| Material | Celsiur scale | Fahrenheit |
| Cast iron | 0C~100C | 32F~212F |
| Ductile iron | 0C~100C | 32F~212F |
Central design specifications of butterfly valve:
| Item | American standard | British standard | Din standard |
| Manufacture | API 609 | BS EN593 | DIN |
| Face to face | API 609 | BS EN558 | DIN 3202 |
| End flange | ANSI 125/150 | BS 4504 | DIN 5201 |
| Inspection and test | API 598 | BS EN12266-1 | DIN 3230 |
Test pressure of butterfly valve API 598 or BS EN12266-1 OR DIN 3230
| PN | Shell(water) | Seat (Water) | Seat (air) | |||
| 10 | 1.5Mpa | 312PSI | 1.1 Mpa | 156Psi | 0.6MPA | 80 Psi |
| 16 | 2.4 Mpa | 341PSI | 1.76 Mpa | 250 Psi | 0.6MPA | 80 Psi |
Design description of butterfly valve:
1.Wafer or lug type, butterfly valve
2. Fluid application: water, sewage, air, oil, power, gas, etc.
3. Zero leak shut-off and full bidirecation sealing design
4. Epoxy coating, minimized operating torque, energy saving.
5. Lever operated with 10 throttling position.
6. Actuator mounting pad flange Acc, to ISO5211
* Flange requirements:
ANSI 125/150, BS4504, JIS 10K, AS2129
TABLE D/E, BS10-E, ISO2084, DIN2501
| No | Pars name | Material |
| 1 | Body | ASTM A-126-B,A536 65-45-12,A216-WCB,A351-CF8/CF8M |
| 2 | Seat | HYPALON,EPDM,NBR,VITON,PTFE,NEOPRENE |
| 3 | Disc | ASTM A536 65-45-12,NYLONG PTFE EPOXY Coating ,A351-CF8/CF8M,ASTM B148 |
| 4 | Pin | ASTM A182-F304/F316/410,MONEL K500 |
| 5 | Bushing | PTFE or BRONZE |
| 6 | Stem | ASTM A182-F304/F316/410,MONEL K500 |
| 7 | O-ring | HYPALON,EPDM,NBR,VITON,PTFE,NEOPRENE |
| 8 | Short bushing | PTFE or BRONZE |
| 9 | Key | Carbon steel |

| SIZE | A | B | C | D | d0 | F | ISO5211 | L | K | G | N-P | S | H | G |
| 2" | 161 | 80 | 42 | 52.9 | 12.6 | 10 | F07 | 32 | 90 | 70 | 4-9 | 9 | 4 | 12 |
| 2-1/2" | 175 | 89 | 45.8 | 64.5 | 12.6 | 10 | F07 | 32 | 90 | 70 | 4-9 | 9 | 4 | 13 |
| 3" | 181 | 95 | 45.8 | 78.8 | 12.6 | 10 | F07 | 32 | 90 | 70 | 4-9 | 9 | 4 | 13 |
| 4" | 200 | 114 | 52 | 104 | 15.77 | 12 | F07 | 32 | 90 | 70 | 4-9 | 11 | 4 | 13 |
| 5" | 213 | 127 | 55 | 123.3 | 18.92 | 14 | F07 | 32 | 90 | 70 | 4-9 | 14 | 4 | 14 |
| 6" | 226 | 139 | 55.8 | 155.1 | 18.92 | 14 | F07 | 32 | 90 | 70 | 4-9 | 14 | 4 | 14 |
| 8" | 260 | 175 | 61.6 | 202.5 | 22.1 | 17 | F10 | 45 | 125 | 102 | 4-12 | 17 | 4 | 15 |
| 10" | 292 | 203 | 67.2 | 250.5 | 28.45 | 22 | F10 | 45 | 125 | 102 | 4-12 | 22 | 4 | 15 |
| 12" | 337 | 242 | 76.9 | 301.6 | 31.6 | 24 | F10 | 45 | 140 | 102 | 4-12 | 22 | 4 | 20 |
| 14" | 368 | 267 | 76.5 | 333.3 | 31.6 | 24 | F10 | 45 | 140 | 102 | 4-12 | 22 | 4 | 20 |
| 16" | 400 | 309 | 86.5 | 389.6 | 33.15 | F14 | 52 | 197 | 140 | 4-18 | 9 | 4 | 11 | |
| 18" | 422 | 328 | 105.6 | 440.5 | 38 | F14 | 52 | 197 | 140 | 4-18 | 9 | 4 | 11 | |
| 20" | 480 | 361 | 131.8 | 491.6 | 41.15 | F14 | 65 | 197 | 140 | 4-18 | 9 | 4 | 12 |
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