Check VALVES - NRV-Globe-LFTCHK-SERIES
GENERAL FEATURES
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- Globe type body with ANSI connection flanges
- Rated to 150/300 class
- Designed to API 6D, ANSI B16.1 Face-to-Face
- Spring loaded mechanism provided for tight shut-off
- Soft seated discs can be supplied for tight shut-off on request
- Casted body with thickness as per API 600
- Robust design with low pressure drop
- Full bore check valve resulting in low pressure drop
Material Specification
| COMPONENT | MATERIAL |
|---|---|
| Body |
CI to IS 210, ASTM A216 WCB, CF8, CF8M, CF3, Duplex Steel, Super Duplex Steel |
| Spindle / Piston | SS 316, SS 410, SS 304 |
| Discs | CI to IS 210, ASTM A216 WCB, SS 304, SS 316, Duplex, Super Duplex Steel |
| Seat | SS 304, SS 316, SS 410 |
| Spring (Optional) | SS 316, Duplex Steel |
| Soft Seat (Optional) | Nitrile, PTFE, EPDM (-25°C to 105°C) |
| Gaskets | Spiral Wound, CAF, Neoprene |
* Duplex steel components can be provided only for a minimum order of 10 nos.
Cv Values
| SIZE (NB) | Cv |
|---|---|
| 50 | 65 |
| 65 | 90 |
| 80 | 135 |
| 100 | 215 |
| 150 | 680 |
| 200 | 1270 |
| 250 | 2350 |
| 300 | 3850 |
| 350 | 4750 |
| 400 | 7400 |
| 450 | 9550 |
| 500 | 13000 |
| 600 | 22000 |
Dimensions
| Size inch |
NB | L | H | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 150# | 300# | 150# | 300# | ||||||
| inch | mm | inch | mm | inch | mm | inch | mm | ||
| 2 | 50 | 8.0 | 203 | 10.5 | 267 | 5.1 | 165 | 7.0 | 178 |
| 2.5 | 65 | 8.6 | 216 | 11.5 | 292 | 5.6 | 178 | 7.5 | 191 |
| 3 | 80 | 9.7 | 242 | 12.5 | 318 | 6.1 | 186 | 8.3 | 211 |
| 4 | 100 | 11.7 | 292 | 14.0 | 356 | 7.1 | 217 | 9.7 | 246 |
| 5 | 125 | 13.2 | 330 | 15.7 | 400 | 9.0 | 230 | 12.0 | 305 |
| 6 | 150 | 14.2 | 356 | 17.5 | 444 | 9.3 | 266 | 12.5 | 318 |
| 8 | 200 | 19.8 | 495 | 21.0 | 533 | 10.9 | 318 | 14.0 | 356 |
| 10 | 250 | 24.9 | 622 | 24.5 | 622 | 12.3 | 368 | 15.5 | 394 |
| 12 | 300 | 27.9 | 698 | 28.0 | 711 | 13.8 | 406 | 19.0 | 482 |
| 14 | 350 | 31.5 | 787 | 33.0 | 838 | 18.3 | 432 | 21.0 | 533 |
| 16 | 400 | 34.6 | 864 | 34.0 | 864 | 19.5 | 483 | 23.0 | 584 |
| 18 | 450 | 39.1 | 978 | 38.5 | 979 | 21.0 | 600 | 23.2 | 590 |
| 20 | 500 | 39.1 | 978 | 40.0 | 1016 | 23.3 | 660 | 24.2 | 614 |
| 24 | 600 | 51.8 | 1295 | 53.0 | 1346 | 23.3 | 740 | 27.9 | 709 |