Gate Valves
Bolted Bonnet Cast Carbon, Stainless or Alloy Steel
Size: 2" -24", ASME Class: 150# -600#
Design Features
- Trims: 13% Cr stem-wedge in CA 15 or 13 Cr faces, and CoCr alloy faced seat API trip 8 suitable for applications up to 850 F (454 C).
- Flexible wedge with center stem-wedge contact in solid CA 15 (13Cr) or hand faces with 13 Cr, SS 316 Monel or CoCr alloy. Wedge is ground and lapped to a mirror finish and tightly guided to prevent dragging and seat damage.
- Non-rotating with precision acme threads and burnished finis. Double acme for faster operation.
- Body and bonnet joint accurately machined. Spiral wound with different grade of material.
- Body and bonne casting are precision machined. One-piece bonnet up to NPS 12 (DN 300) for better allignment and fewer parts.
- Flanges: Finish 125-250 AARH for all valves. ASME Classes 150-300: 2mm raised face. ASME Classes 600-up: 7mm taised face
- RTJ available on client requirement.
- Roatating stem nut is austenitic ductile iron Gr.D-2C renewable inline.
Standard Materials
| Parts | Materials | ||
|---|---|---|---|
| Body | WCB | CF8 | CF8M |
| Bonnet | WCB | CF8 | CF8M |
| Stem | SS 410 | SS 304 | SS 316 |
| Wedge | CA 15 or 13Cr faced | CF8 | CF8M |
| Seat | 13% Cr. or Steel | CoCr Alloy Faced | CoCr Alloy Faced |
| Packing Flanged | Carbon Steel | Stainless steel | Stainless Steel |
| Gland Bushing | Carbon Steel | Stainless steel | Stainless steel |
| Packing ring | Graphite | ||
| Gland Stud | Gr. B7 | Gr. B8 | B8M |
| Gland Nut | Gr.2H | Gr.8 | Gr.8M |
| Boby/Bonnet Nut | Gr.2H | Gr.8 | Gr.8M |
| Body/Bonnet Stud | Gr.B7 | Gr.B8 | B8M |
| Back Seat | SS 410 | SS 304 | SS 316 |
| Gasket | Class 150: Corrugated Steel / Graphite Class 300 - 1500: Spiral Stainless Steel / Graphite |
||
| Key | Carbon Steel | ||
| Yoke Bushing | Carbon Steel | Stainless Steel | Stainess Steel |
| Handwheel Nut | Malleable Iron or Steel | ||
| Handwheel | Malleable Iron or Ductile Iron | ||
| Name Plate | Stainless Steel | ||
| Stem Nut | A 439 Austenitic Ductile Iron Gr. D-2c | ||
Design Specifications
| Item | Applicable STD. | ||
|---|---|---|---|
| Wall thickness and general design = NPS 24 | API 600, ISO 10434 | ||
| Wall thickness and general design > NPS 24 | ASME B16.34 | ||
| Pressure Temperature Rating | ASME B16.34 | ||
| Face-to-Face dimensios for butt weld and flanged valves | ASME B16.10 | ||
| Testing Standard | API 598 | ||
| Flange Design | ASME B16.5 | ||
| Butt Welding Design | ASME B16.25 | ||
| Materials | ASTM | ||
Gate Valve Dimensions
| Dimensional Details As Per ANSI 150 # Class | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | 2" | 2 1/2" | 3" | 4" | 6" | 8" | 10" | 12" | 14" | 16" | 18" | 20" | 24" |
| F to F | 178 | 191 | 203 | 229 | 267 | 292 | 330 | 356 | 381 | 406 | 432 | 457 | 508 |
| OD | 150 | 180 | 190 | 230 | 280 | 345 | 405 | 485 | 535 | 595 | 635 | 700 | 815 |
| THK | 17.5 | 20.7 | 22.3 | 22.3 | 25.4 | 28.6 | 30.2 | 31.8 | 33.4 | 35 | 38.1 | 41.3 | 46.1 |
| RFD | 92 | 105 | 127 | 157 | 216 | 270 | 324 | 381 | 413 | 470 | 533 | 584 | 692 |
| PCD | 121 | 139.7 | 152 | 191 | 241 | 299 | 362 | 432 | 476 | 540 | 578 | 635 | 749 |
| od | 19.1 | 19.05 | 19.1 | 19.1 | 22.2 | 22.2 | 25.4 | 25.4 | 28.6 | 28.6 | 31.8 | 31.8 | 34.9 |
| NOH | 4 | 4 | 4 | 8 | 8 | 8 | 12 | 12 | 12 | 16 | 16 | 20 | 20 |
| Dimensional Details As Per ANSI 300 # Class | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | 2" | 2 1/2" | 3" | 4" | 6" | 8" | 10" | 12" | 14" | 16" | 18" | 20" | 24" |
| F to F | 216 | 241 | 282 | 305 | 403 | 419 | 457 | 501 | 762 | 838 | 914 | 990 | 1143 |
| OD | 165 | 190 | 210 | 255 | 320 | 380 | 445 | 520 | 585 | 650 | 710 | 775 | 915 |
| THK | 20.7 | 23.9 | 27 | 30.2 | 35 | 39.7 | 46.1 | 49.3 | 52.4 | 55.6 | 58.8 | 62 | 68.3 |
| RFD | 92 | 105 | 127 | 157 | 216 | 270 | 324 | 381 | 413 | 470 | 533 | 584 | 692 |
| PCD | 127 | 149.2 | 168 | 200 | 270 | 330 | 387 | 451 | 514 | 572 | 629 | 686 | 813 |
| od | 19.1 | 22.2 | 22.2 | 22.2 | 22.2 | 25.4 | 28.6 | 31.8 | 31.8 | 34.9 | 34.9 | 34.9 | 41.3 |
| NOH | 8 | 8 | 8 | 8 | 12 | 12 | 16 | 16 | 20 | 20 | 24 | 24 | 24 |