18061659285
300LB Forged DBB Trunnion-Mounted Ball Valve for Gas Pipeline
Product Parameters
| Size | 2" to 64" (DN50–DN1600) |
| Pressure Rating | Class 300; Optional: Class 150 / 600 / 900 / 1500 / 2500 |
| Operating Temperature | -29℃ to 180℃ (Material dependent) |
| Ball Type | Trunnion-mounted ball, forged 2–3 piece body |
| Sealing Design | Double Block-and-Bleed (DBB); Optional emergency sealant injection |
| End Connection | Flanged (RF / RTJ) |
| Operation | Lever, Worm Gear; Optional: Electric or Pneumatic Actuation |
| Mounting | ISO 5211 direct mounting available |
| Stem Design | Anti-blowout stem; Short stem (optional extended stem for buried service) |
| Body Materials | Carbon Steel, Low Temperature Carbon Steel, Stainless Steel (ASTM A182 F316 / F347), Alloy Steel, Duplex Stainless Steel |
| Seat Materials | PEEK, PCTFE (KEL-F), Devlon; Optional metal-to-metal hard seat |
| Fire-Safe Design | Designed in accordance with API 607 / API 6FA fire-safe requirements |
| Design & Manufacturing Reference | API 6D, ASME B16.34, BS 5351, MESC SPET 7/200 |
| Applications | Natural Gas Transmission Pipelines, Municipal Gas Distribution, Onshore & Offshore Gas Pipeline Systems, Gas-Fired Power Generation |
| Brand | SLVCN |
Key Features
Forged Trunnion-Mounted Design
Ensures stable sealing, reduced operating torque, and long service life in Class 300 gas pipelines.
Double Block-and-Bleed (DBB) Structure
Provides secure isolation and controlled cavity pressure relief for safer gas transmission.
Enhanced Safety for Gas Service
Fire-safe seat design, anti-static device, and anti-blowout stem reduce risks in flammable gas applications.
Flexible Configuration Options
Multiple materials, end connections, and actuation options to meet different gas pipeline requirements.
Product Details
The SLVCN 300LB Forged Trunnion-Mounted DBB Ball Valve is developed for safe and dependable operation in natural gas pipeline systems. The forged 2–3 piece body combined with a trunnion-supported ball ensures stable sealing and reduced operating torque under Class 300 pressure conditions.
Its Double Block-and-Bleed structure allows reliable isolation and controlled cavity pressure release, improving pipeline safety. Designed with fire-safe seating, anti-static protection, and an anti-blowout stem, the valve is well suited for gas transmission, municipal gas networks, and gas-fired power facilities requiring long service life and low maintenance.
Parts List
Dimensions: Class 300 - Full Port
| Size | Bore | Side Entry | Top Entry | ||||||||||||
| Model / Face to Face | D in/mm | D1 in/mm | Weight | Model / Face to Face | Weight | ||||||||||
| NPS/DN | B1 in/mm | B2 in/mm | FF,FW RF in/mm | FF,FW RTJ in/mm | FF BWE in/mm | FW BWE in/mm | Model FF lb/kg | Model FW lb/kg | FT RF in/mm | FT RTJ in/mm | FT BWE in/mm | D2 in/mm | Model FT lb/kg | ||
| 2" | 1.94 | 1.94 | 8.5 | 9.13 | 8.5 | 11 | 6.5 | 6.5 | 60 | 60 | 11.5 | 11.63 | 11.5 | 7.5 | 121 |
| 50 | 49 | 49 | 216 | 232 | 216 | 279 | 166 | 166 | 27 | 27 | 292 | 295 | 292 | 190 | 55 |
| 3" | 2.94 | 2.94 | 11.13 | 11.75 | 11.13 | 12.5 | 8.5 | 8.5 | 132 | 132 | 14 | 14.13 | 14 | 9.4 | 276 |
| 80 | 74 | 74 | 283 | 298 | 283 | 318 | 216 | 216 | 60 | 60 | 356 | 359 | 356 | 240 | 125 |
| 4" | 3.94 | 3.94 | 12 | 12.63 | 12 | 14 | 10.1 | 10.1 | 179 | 179 | 17 | 17.13 | 17 | 11.4 | 507 |
| 100 | 100 | 100 | 305 | 321 | 305 | 356 | 256 | 256 | 81 | 81 | 432 | 435 | 432 | 290 | 230 |
| 6" | 5.94 | 5.94 | 15.88 | 16.5 | 18 | 18 | 12.9 | 12.9 | 408 | 397 | 22 | 22.13 | 22 | 14.6 | 606 |
| 150 | 150 | 150 | 403 | 419 | 457 | 457 | 328 | 328 | 185 | 180 | 559 | 562 | 559 | 370 | 275 |
| 8" | 7.94 | 7.94 | 19.75 | 20.38 | 20.5 | 21.5 | 16.3 | 15.9 | 688 | 659 | 26 | 26.13 | 26 | 16.3 | 1124 |
Weight and dimensions for larger valve sizes up to 64" available on request
Dimensions: Class 300 - Reduced Port
| Size | Bore | Side Entry | Top Entry | ||||||||||||
| Model / Face to Face | D in/mm | D1 in/mm | Weight | Model / Face to Face | D2 in/mm | Weight | |||||||||
| NPS/DN | B1 in/mm | B2 in/mm | GG, GW RF in/mm | GG, GW RTJ in/mm | GG BWE in/mm | GW BWE in/mm | Model GG lb/kg | Model GW lb/kg | GT RF in/mm | GT RTJ in/mm | GT BWE in/mm | Model GT lb/kg | |||
| 2"×11/2" | 1.94 | 1.5 | 8.5 | 9.13 | 8.5 | 11 | 6.5 | 6.5 | 57 | 57 | 11.5 | 11.63 | 11.5 | 6.5 | 66 |
| 50×40 | 49 | 38 | 216 | 232 | 216 | 279 | 166 | 166 | 26 | 26 | 292 | 295 | 292 | 166 | 30 |
| 3"×2" | 2.94 | 1.94 | 11.13 | 11.75 | 11.13 | 12.5. | 8.3 | 8.3 | 88 | 88 | 14 | 14.13 | 14 | 8.3 | 143 |
| 80×50 | 74 | 49 | 283 | 298 | 283 | 318 | 211 | 211 | 40 | 40 | 356 | 359 | 356 | 210 | 65 |
| 4" X3" | 3.94 | 2.94 | 12 | 12.63 | 12 | 14 | 10.1 | 10.1 | 154 | 154 | 17 | 17.13 | 17 | 10 | 298 |
| 100×80 | 100 | 74 | 305 | 321 | 305 | 356 | 256 | 256 | 70 | 70 | 432 | 435 | 432 | 255 | 135 |
| 6" ×4" | 5.94 | 3.94 | 15.9 | 16.5 | 18 | 18 | 12.6 | 12.6 | 251 | 251 | 22 | 22.13 | 22 | 12.6 | 551 |
| 150×100 | 150 | 100 | 403 | 419 | 457 | 457 | 321 | 321 | 114 | 114 | 559 | 562 | 559 | 320 | 250 |
| 8"×6" | 7.94 | 5.94 | 19.8 | 20.38 | 20.5 | 21.5 | 15 | 15 | 481 | 468 | 26 | 26.13 | 26 | 15 | 661 |
| 200×150 | 201 | 150 | 502 | 518 | 521 | 546 | 381 | 381 | 218 | 212 | 660 | 664 | 660 | 381 | 300 |
| 10"X8" | 9.94 | 7.94 | 22.4 | 23 | 22 | 23.5. | 17.6 | 17.6 | 769 | 737 | 31 | 31.13 | 31 | 17.5 | 1191 |
Weight and dimensions for larger valve sizes up to 64" available on request
If you want to obtain the complete size, please contact us
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