Cast Gate Valve – Class 600 / 900 (API 600)
Heavy-duty API 600 cast gate valve for Class 600 and 900 high-pressure applications with flanged, RTJ, and butt-weld end connections.
- Pressure
- Class 600 – Class 900
- Size Range
- 2" to 24"
- Testing
- API 598
⚠ Pending engineering review: Pending engineering sign-off: pressure figure is a hydro-test (shell) value, not a confirmed Class rating.
- 01
Pressure Rating
Class 600 (159 Kg/cm²) / Class 900 (235 Kg/cm²)
- 02
Size Range
- 03
Material
- 04
Standards
01
Pressure Rating
Class 600 (159 Kg/cm²) / Class 900 (235 Kg/cm²)
Reference standard & materials
Same data as the printed catalogue
Reference standard
- Mfg. Std.
- API 600 / BS 1414
- Face to Face
- ASME B16.10
- Flange End
- ASME B16.5
- Butt Weld End
- ASME B16.25
- Insp. & Test.
- API 598
- Press & Temp.
- ASME B16.34

Material of construction
| No. | Description | Carbon Steel | Stainless Steel | Alloy Steel | Low Carbon Steel |
|---|---|---|---|---|---|
| 01 | Body | ASTM A216 GR.WCB | ASTM A351 GR.CF8M | ASTM A217 GR.WC9 | ASTM A352 GR.LCC |
| 02 | Seat Ring | ASTM A105 + Stellite 6 | ASTM A182 F316 + Stellite 6 | ASTM A182 F22 + Stellite 6 | ASTM A182 F316 + Stellite 6 |
| 03 | Wedge | ASTM A216 GR.WCB + Overlay 13% Cr. OR ASTM A217 GR.CA15 | ASTM A351 GR.CF8M OR Stellite 6 | ASTM A217 GR.WC9 + Stellite 6 | ASTM A352 GR.LCC + Overlay 316 OR Stellite 6 |
| 04 | Stem | ASTM A182 GR.F6a | SS 316 | ASTM A182 GR.F6a | SS 316 |
| 05 | Gasket | SPW SS 304 / SS 316 + Graphite Filled | SPW SS 304 / SS 316 + Graphite Filled | SPW SS 304 / SS 316 + Graphite Filled | SPW SS 304 / SS 316 + Graphite Filled |
| 06 | Bonnet | ASTM A216 GR.WCB | ASTM A351 GR.CF8M | ASTM A217 GR.WC9 | ASTM A352 GR.LCC |
| 07 | Joint Stud / Joint Nut | ASTM A193 GR. B7 / ASTM A194 GR. 2H | ASTM A193 GR. B8M / ASTM A194 GR. 8M | ASTM A193 GR. B7 / ASTM A194 GR. 2H | ASTM A320 GR. L7 / ASTM A194 GR. 7 |
| 08 | Bonnet Bush | ASTM A182 GR.F6a | SS 316 | ASTM A182 GR.F6a | SS 316 |
| 09 | Gland Packing | Top & bottom braided graphite & interior die-formed flexible graphite | Top & bottom braided graphite & interior die-formed flexible graphite | Top & bottom braided graphite & interior die-formed flexible graphite | Top & bottom braided graphite & interior die-formed flexible graphite |
| 10 | Gland Bush | ASTM A182 GR.F6a | SS 316 | ASTM A182 GR.F6a | SS 316 |
| 11 | Gland Flange | ASTM A216 GR.WCB | ASTM A351 GR.CF8 | ASTM A216 GR.WCB | ASTM A352 GR.LCC |
| 12 | Yoke Sleeve | Ni. Resist. ASTM A439 GR. D2 | Ni. Resist. ASTM A439 GR. D2 | Ni. Resist. ASTM A439 GR. D2 | Ni. Resist. ASTM A439 GR. D2 |
| 13 | Handwheel | Malleable Iron / SG Iron | Malleable Iron / SG Iron | Malleable Iron / SG Iron | Malleable Iron / SG Iron |
| 14 | Handwheel Nut | Carbon Steel | Stainless Steel | Carbon Steel | Carbon Steel |
| 15 | Grease Nipple | Carbon Steel | Stainless Steel | Carbon Steel | Carbon Steel |
| 16 | Grub Screw | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel |
| 17 | Name Plate | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel |
Dimensions
mm · ASME B16.5 flange details · weights on request


| Face to Face | Flange Details, ASME B16.5 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | DN | A (FE) | A (RTJ) | A (BW) | OD | PCD | RFD | T | ØH | N | HW Dia. (ØHW) | H Appx. | Operating System |
| 2" | 50 | 292 | 295 | 292 | 165 | 127.0 | 92.1 | 25.4 | 19 | 08 | 250 | 410 | Handwheel |
| 2.5" | 65 | 330 | 333 | 330 | 190 | 149.4 | 104.8 | 28.4 | 22 | 08 | 300 | 485 | Handwheel |
| 3" | 80 | 356 | 359 | 356 | 210 | 168.1 | 127.0 | 31.8 | 22 | 08 | 350 | 560 | Handwheel |
| 4" | 100 | 432 | 435 | 432 | 273 | 215.9 | 157.2 | 38.1 | 25 | 08 | 450 | 705 | Handwheel |
| 5" | 125 | 508 | 511 | 508 | 330 | 266.7 | 185.7 | 44.4 | 29 | 08 | 500 | 800 | Handwheel |
| 6" | 150 | 559 | 562 | 559 | 356 | 292.1 | 215.9 | 47.8 | 32 | 12 | 500 | 895 | Handwheel |
| 8" | 200 | 660 | 663 | 660 | 419 | 349.2 | 269.9 | 55.6 | 32 | 12 | 600 | 1125 | Gear Box |
| 10" | 250 | 787 | 790 | 787 | 508 | 431.8 | 323.8 | 63.5 | 35 | 16 | 600 | 1400 | Gear Box |
| 12" | 300 | 838 | 841 | 838 | 559 | 489.0 | 381.0 | 66.5 | 35 | 20 | 500 | 1535 | Gear Box |
| 14" | 350 | 889 | 892 | 889 | 603 | 527.0 | 412.8 | 69.8 | 38 | 20 | 550 | 1825 | Gear Box |
| 16" | 400 | 991 | 994 | 991 | 686 | 603.2 | 469.9 | 76.2 | 42 | 20 | 600 | 1955 | Gear Box |
| 18" | 450 | 1092 | 1095 | 1092 | 743 | 654.0 | 533.4 | 82.6 | 45 | 20 | 650 | 2140 | Gear Box |
| 20" | 500 | 1194 | 1200 | 1194 | 813 | 723.9 | 584.2 | 88.9 | 45 | 24 | 650 | 2310 | Gear Box |
| 24" | 600 | 1397 | 1407 | 1397 | 940 | 838.2 | 692.2 | 101.6 | 50 | 24 | 700 | 2725 | Gear Box |
Technical specifications
- Material
- Body: ASTM A216 GR.WCB (CS) / ASTM A351 GR.CF8M (SS) / ASTM A217 GR.WC9 (Alloy)
- Pressure Rating
- Class 600 (159 Kg/cm²) / Class 900 (235 Kg/cm²)
- Temperature Range
- -29°C to +538°C (CS per ASME B16.34; Alloy to +593°C)
- Eng Note
- Pending engineering sign-off: pressure figure is a hydro-test (shell) value, not a confirmed Class rating.
- Size Range
- 2" to 24" (DN 50–600)
- End Connections
- Flanged (ASME B16.5), RTJ, Butt Weld (ASME B16.25)
- Face T To Face
- ASME B16.10
- Operating System
- Handwheel (2"–8"); Gear Box (10" and above)
- Model Numbers
- VX-GTV-BB-1303 (Cl.600) / VX-GTV-BB-1304 (Cl.900)
Standards & testing
- MFG. STD: API 600 / BS 1414
- Face to Face: ASME B16.10
- Insp. & Test: API 598
- Press. & Temp: ASME B16.34
- Separated yoke: 10" and above (Class 600/900)
Custom engineering
Special trims, exotic materials and non-standard dimensions are available against your datasheet — send it with your quote request and our engineering team will respond with a compliant proposal.
Related valves in this family
Cast Gate Valve – Class 150 / 300 (API 600)
API 600 bolted-bonnet cast gate valve with rising stem and outside screw & yoke. Integral seat ring and stellited wedge for zero-leak isolation in oil, gas, and steam service.
View detailsPressure Seal Gate Valve – Class 900 / 1500 / 2500
ASME B16.34 pressure-seal bonnet gate valve for extreme-pressure service. The pressure-seal bonnet design ensures tighter sealing as line pressure increases, ideal for high-pressure steam and process gas.
View details