Cast Steel Check Valve Bolted Bonnet
“VALTECH” robust design, Cast Steel Swing Check Valves are designed and manufactured with reference to Standard BS-1868 for Pipelines 50NB and above. They are available in Flanged and Buttweld ends. Hard Faced Trim material ensures perfect Sealing and longer life. Lapped Back Seat is provided to ensure re-packing/replacing of Gland Packing in stream, when the Valve is in full open condition which ensures maximum safety, convenience and economy. If required, Valves can be offered under any THIRD PARTY INSPECTION .
“VALTECH” Cast Steel Swing Check Valves are available in various materials like Cast Carbon Steel conforming to ASTM-A-216 Gr. WCB, Cast Alloy Steel like ASTM-A-217 Gr. WC-6 / WC-9; and Cast Stainless Steel like ASTM-A-351 Gr. CF-8, CF-3, CF-8M & CF-3M. Size range starts from 50 NB through 900NB and pressure rating from 150# to 600#.
Special Features
- Gear Operation-applied force exceeds 350N
- Limit Switch Arrangement
- Electrical & Pneumatic Arrangement
- Lantern ring arrangement for Vacuum service
- IBR Certified
- NACE MR 0175 & MR 0103
- Position indicator
- Locking Arrangement
- Extended Stem
| MANUFACTURING REFERENCE STANDARDS | |
|---|---|
| Design | BS-1868 / ANSI B 16.34 |
| Ends | Flanged to ANSI B 16.5 / Butt Weld to ANSI B 16.25 |
| Testing | API 598 |
|
MATERIAL OF CONSTRUCTION |
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| Sr.No. | Parts Name | Material | ||
| Carbon Steel | Alloy Steel | Stainless Steel | ||
| 1 | Body | CCS A-216Gr. WCB | CAS A-217 Gr. WC6/WC9 | CSS A-351 Gr.CF8/CF8M |
| 2 | Cover | |||
| 3 | Disc | CCS A-216 Gr. WCB Faced with 13% Cr | ||
| 4 | Seat Ring (Seal Weld) | SS A-340 TP 304 | ||
| 5 | Gasket | Spiral Wound SS 304/316 with Grafoil Filled | ||
| 6 | Hinge | Fabricated Carbon Steel / SS-304/316 | ||
| 7 | Bracket | |||
| 8 | Hinge Pin | Stainless Steel A-276 TP 410 | SS A-276 Gr. 304/316 | |
| 9 | Cotter Pin | |||
| 10 | Cover Stud Nut | Carbon Steel A-194 Gr. 2H | ||
| 11 | Cover Stud | Alloy Steel A-193 Gr. B7 | ||
| 12 | Bracket Jam Nut | SS A-276 Gr. 304/316 | ||
| 13 | Bracket Stud | SS A-276 Gr. 304/316 | ||
| 14 | Disc Nut | SS A-276 Gr. 304/316 | ||
| 15 | Disc Washer | SS A-276 Gr. 304/316 | ||
|
DIMENSIONS |
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|
SIZE |
150# |
300# |
600# |
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MM |
INCH |
A |
B |
A |
B |
A |
B |
| 50 | 2” | 203 | 135 | 267 | 15 | 292 | 178 |
| 65 | 2.1/2” | 216 | 15 | 292 | 190 | 330 | 192 |
| 80 | 3” | 241.5 | 175 | 318 | 210 | 356 | 203 |
| 100 | 4” | 292 | 200 | 356 | 240 | 432 | 240 |
| 125 | 5” | 330 | 213 | 400 | 265 | 508 | 295 |
| 150 | 6” | 355.5 | 235 | 444 | 285 | 559 | 335 |
| 200 | 8” | 495.5 | 297 | 533 | 345 | 660 | 390 |
| 250 | 10” | 622.5 | 353 | 622 | 400 | 787 | 435 |
| 300 | 12” | 699 | 400 | 711 | 470 | 838 | 540 |
| 350 | 14” | 787 | 443 | 838 | 530 | 889 | 606 |
| 400 | 16” | 864 | 485 | 964 | 581 | 991 | 687 |
| 450 | 18” | 978 | 515 | 798 | 638 | 1092 | 733 |
| 500 | 20” | 978 | 55 | 1016 | 686 | 1194 | 778 |
| 600 | 24” | 1295 | 655 | 1346 | 785 | 1397 | 876 |
| 650 | 26” | 1295.4 | * | * | * | * | * |
| 700 | 28” | 1447.8 | * | * | * | * | * |
| 750 | 30” | 1524 | * | * | * | * | * |
| 900 | 36” | 1955.8 | * | * | * | * | * |
* Refer To VALTECH
** Technical Improvements and alterations reserved