18061659285
Class 600 Scotch Yoke Fixed Trunnion-Mounted Ball Valve with DBB Structure
Product Parameters
Valve Type |
Scotch Yoke Top Entry Trunnion Mounted Ball Valve |
Pressure Rating (Standard) |
ASME Class 600 |
Other Pressure Classes |
Available upon request:ASME Class 150, 300, 900, 1500, 2500 (subject to design confirmation) |
Size Range |
2"–64" (DN50–DN1600); larger sizes available upon request |
Ball Design |
Trunnion Mounted |
Body Construction |
Forged body with bolted top cover design for easy maintenance (Top Entry) |
Sealing Design |
Double Block and Bleed (DBB) |
Seat Type |
Metal Seat (standard); Soft seat option available for specific applications Seat |
Materials |
Metal Seat, PEEK, PCTFE (KEL-F), Devlon V |
Operating Temperature |
-40℃ to 550℃ (varies with material selection) |
End Connection |
Flanged RF / RTJ |
Operation |
Scotch Yoke Pneumatic Actuator |
Mounting Interface |
ISO 5211 direct mounting available |
Body Materials |
WCB, LCB, LCC, WC6, WC9, Stainless Steel, Duplex, Super Duplex, Nickel Alloys |
Design Standards |
API 6D, BS 5351, ASME B16.34 |
Fire-Safe Design |
Designed in accordance with API 607 / API 6FA |
Sealing Direction |
Bi-directional sealing |
Brand |
SLVCN |
Key Features
DBB Visual Monitoring for Bleed Cavity
The bleed port allows connection to a pressure gauge or discharge pipe, enabling real-time cavity pressure monitoring. This provides early detection of potential leaks, ensuring continuous, safe operation.
Top Entry Seal Upgrade
The top-entry design features multi-layer packing combined with metal bellows, preventing stem leakage. Ideal for handling high-pressure, hazardous media, it ensures reliable sealing under extreme conditions.
Scotch Yoke Actuator with No Dead Zone
The actuator’s dead-zone-free design ensures precise synchronization between valve movement and signal commands, delivering smooth control, especially in automated processes.
Fixed Ball with Low Torque Advantage
Upper and lower bearings support the ball, ensuring even load distribution on the seat. This reduces operating torque by 40% compared to floating ball valves, prolonging actuator life and enhancing performance.
Product Details
SLVCN 600LB Scotch Yoke Fixed Trunnion-Mounted Ball Valve is designed for efficient and secure shutoff in medium to high-pressure industrial pipelines. Featuring a Double Block and Bleed (DBB) system, it ensures bidirectional zero leakage and continuous monitoring of sealing status. The top-entry design allows for easy maintenance without removing the valve from the pipeline, reducing downtime and operational costs.
Equipped with a Scotch yoke pneumatic actuator, this valve offers quick response and high energy efficiency, making it ideal for automated control applications. The metal-seated and fixed ball design provides superior durability under high-pressure, high-temperature, and abrasive media conditions, making it perfect for critical applications in the oil, gas, and chemical industries.
This valve is the ideal choice for industries requiring high safety, durability, and maintenance efficiency, ensuring reliable performance in demanding environments.
Parts List
Dimensions: Class 600 - Full Port
| Size | Bore | Model / Face to Face | D2 in/mm | Weight | |||
| NPS/DN | B1 | B2 in/mm|in/mm | FT RF in/mm | FT RTJ in/mm | FT BWE in/mm | Model FT lb/kg | |
| 2" | 1.94 | 1.94 | 11.5 | 11.63 | 11,50 | 7.5 | 132 |
| 50 | 49 | 49 | 292 | 295 | 292 | 190 | 60 |
| 3" | 2.94 | 2.94 | 14 | 14.13 | 14 | 9.4 | 287 |
| 80 | 74 | 74 | 356 | 359 | 356 | 240 | 130 |
| 4" | 3.94 | 3.94 | 17 | 17.13 | 17 | 11.4 | 529 |
| 100 | 100 | 100 | 432 | 435 | 432 | 290 | 240 |
| 6" | 5.94 | 5.94 | 22 | 22.13 | 22 | 14.6 | 628 |
| 150 | 150 | 150 | 559 | 562 | 559 | 370 | 285 |
| 8" | 7.94 | 7.94 | 26 | 26.13 | 26 | 20.5 | 1235 |
Weight and dimensions for larger valve sizes up to 64" available on request
Dimensions: Class 600 - Reduced Port
| Size | Bore | Model / Face to Face | D2 in/mm | Weight | |||
| NPS/DN | B1 | B2 in/mmin/mm | GT RF in/mm | GT RTJ in/mm | GT BWE in/mm | Model GT lb/kg | |
| 2"X 11/2" | 1.94 | 1.5 | 11.5 | 11.63 | 11.5 | 6.5 | 77 |
| 50X40 | 49 | 38 | 292 | 295 | 292 | 166 | 35 |
| 3"X2" | 2.94 | 1.94 | 14 | 14.13 | 14 | 8.3 | 154 |
| 80X50 | 74 | 49 | 356 | 359 | 356 | 211 | 70 |
| 4"X3" | 3.94 | 2.94 | 17 | 17.13 | 17 | 10.9 | 309 |
| 100X80 | 100 | 74 | 432 | 435 | 432 | 276 | 140 |
| 6"X4" | 5.94 | 3.94 | 22 | 22.13 | 22 | 14 | 584 |
| 150X100 | 150 | 100 | 559 | 562 | 559 | 356 | 265 |
| 8"X6" | 7.94 | 5.94 | 26 | 26.13 | 26 | 16.6 | 750 |
| 200X150 | 201 | 150 | 660 | 664 | 660 | 421 | 340 |
| 10"x8" | 9.94 | 7.94 | 31 | 31.13 | 31 | 20.1 | 1323 |
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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