Wafer Type Butterfly Valves - Central Disc
We are, Nova Valves, is one of the leading and trusted manufacturer of high quality Wafer Type Butterfly Central Disc Valves. Our Wafer Type Butterfly Central Disc Valves are highly recommended in Industrial Use and, Commercial Use.
Material Description
| NO | PARTS NAME | MATERIALS |
|---|---|---|
| 1 | BODY | CAST IRON/CAST STEEL/S.S.304-316 |
| 2 | DISC | CAST IRON/CAST STEEL/S.S.304-316 |
| 3 | SPINDLE | SS 410/304/316 |
| 4 | BODY LINING | NITRILE/E.P.D.M./SILICON/VITON/HYPALON |
| 5 | 'O' RING | NITRILE/E.P.D.M. |
| 6 | PIN | S.S.304/316 |
| 7 | LEVER | M.S. FABRICATED |
Size Table
| SIZE | A | B | C | D | E | F | G | FLANGE MOUNTING (I.S.O 5211) | |
|---|---|---|---|---|---|---|---|---|---|
| MM | INCH | ||||||||
| 200 | 8" | 60 | 230 | 156 | 194 | 75 | 325 | 15 | F10 |
| 250 | 10" | 68 | 266 | 196 | 243 | 75 | 385 | 18 | F10 |
| 300 | 12" | 78 | 300 | 230 | 292 | 75 | 385 | 18 | F10 |
TESTING
| PRESSURE RATING | HYDROSTATIC SHELL TEST | HYDROSTATIC SEAT TEST | ||
|---|---|---|---|---|
| Kg/CM2 | PSI | Kg/CM2 | PSI | |
| PN16 | 22 | 310 | 16 | 225 |
| PN10 | 15 | 210 | 10 | 140 |
SEAT TEMPERATURE RANGE
| SEAT TYPE | TEMPERATURE RANGE | |
|---|---|---|
| Min. | Max. | |
| NITRILE | -13°F(-25°C) | 212°F(100°C) |
| EPDM | -13°F(-25°C) | 250°F(120°C) |
| SILICON | -58°F(-50°C) | 356°F(180°C) |
| VITON | -23°F(-5°C) | 392°F(200°C) |
| HYPALON | -4°F(-20°C) | 250°F(120°C) |
Material Description
| NO | PARTS NAME | MATERIALS |
|---|---|---|
| 1 | BODY | CAST IRON/CAST STEEL/S.S.304-316 |
| 2 | DISC | CAST IRON/CAST STEEL/S.S.304-316 |
| 3 | SPINDLE | SS 410/304/316 |
| 4 | BODY LINING | NITRILE/E.P.D.M./SILICON/VITON/HYPALON |
| 5 | 'O' RING | NITRILE/E.P.D.M. |
| 6 | PIN | S.S.304/316 |
| 7 | GEAR BOX | CAST IRON |
| 8 | HAND WHEEL | M.S. FABRICATED/td> |
Size Table
| SIZE | A | B | C | D | E | F | G | FLANGE MOUNTING (I.S.O 5211) | |
|---|---|---|---|---|---|---|---|---|---|
| MM | INCH | ||||||||
| 200 | 8" | 60 | 230 | 156 | 194 | 285 | 300 | 15 | F10 |
| 250 | 10" | 68 | 266 | 196 | 243 | 285 | 350 | 18 | F10 |
| 300 | 12" | 78 | 300 | 230 | 292 | 285 | 350 | 18 | F10 |
TESTING
| PRESSURE RATING | HYDROSTATIC SHELL TEST | HYDROSTATIC SEAT TEST | ||
|---|---|---|---|---|
| Kg/CM2 | PSI | Kg/CM2 | PSI | |
| PN16 | 22 | 310 | 16 | 225 |
| PN10 | 15 | 210 | 10 | 140 |
SEAT TEMPERATURE RANGE
| SEAT TYPE | TEMPERATURE RANGE | |
|---|---|---|
| Min. | Max. | |
| NITRILE | -13°F(-25°C) | 212°F(100°C) |
| EPDM | -13°F(-25°C) | 250°F(120°C) |
| SILICON | -58°F(-50°C) | 356°F(180°C) |
| VITON | -23°F(-5°C) | 392°F(200°C) |
| HYPALON | -4°F(-20°C) | 250°F(120°C) |