Check VALVES - NRV-Single-WACHK-SERIES
GENERAL FEATURES
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- Wafer type body to suit ANSI and DIN connection flanges
- Rated to 125/150 class, DIN PN 10 / 16
- Designed to API 6D / ASME B16.10 Face-to-Face
- Spring loaded disc can be provided on request for tight shut-off
- Eccentrically mounted pin with soft seated design ensures tight shut-off
- Lifting eye bolts for sizes above 150 NB are standard
- Casted and fabricated options are available
- Pressure testing as per API 598
- Temperature rating: -20°C to 105°C
- Pressure rating: 125/150 Lbs - PN 10/16
- Size range: 40 NB to 600 NB
- Low weight and easy to handle design
Material Specification
| COMPONENT | MATERIAL |
|---|---|
| Body | CI to IS 210, ASTM A216 WCB, CF8, CF8M, CS to IS 1875-II, SS 304, SS 316 |
| Hinge | Duplex Steel, Super Duplex Steel |
| Disc | SS 316, Duplex, Super Duplex, SS 410, CI to IS 210, SS 304, SS 316 |
| Seat | SS 304, SS 316, SS 410 |
| Spring | SS 316, Duplex Steel |
| Seal | EPDM (-25°C to 105°C) |
* Duplex steel disc and pins can be provided only for a minimum order of 10 nos.
Cv Values
| SIZE (NB) | Cv |
|---|---|
| 50 | 48 |
| 65 | 100 |
| 80 | 181 |
| 100 | 291 |
| 125 | 494 |
| 150 | 705 |
| 200 | 1795 |
| 250 | 2563 |
| 300 | 4259 |
| 350 | 5436 |
| 400 | 7355 |
| 450 | 9537 |
| 500 | 12004 |
| 600 | 17804 |
Dimensions
| Size | A | B | C | |
|---|---|---|---|---|
| mm | in | |||
| 40 | 1.5 | 16 | 81 | 22 |
| 50 | 2 | 16 | 96 | 30 |
| 65 | 2.5 | 16 | 109 | 40 |
| 80 | 3 | 16 | 130 | 52 |
| 100 | 4 | 16 | 160 | 71 |
| 125 | 5 | 16 | 190 | 93 |
| 150 | 6 | 19 | 213 | 114 |
| 200 | 8 | 28 | 270 | 157 |
| 250 | 10 | 28 | 327 | 195 |
| 300 | 12 | 38 | 327 | 230 |
| 350 | 14 | 41 | 437 | 270 |
| 400 | 16 | 51 | 487 | 310 |
| 450 | 18 | 51 | 532 | 360 |
| 500 | 20 | 60 | 585 | 406 |
| 600 | 24 | 70 | 687 | 490 |