Class 900 Reduced Port Forged DBB Trunnion-Mounted Cryogenic Ball Valve
Product Parameters
| Size | 2"to 36" (DN50~DN900) |
| Nominal Pressure | Class 900 (Optional Class150 / 300 / 600 / 1500/ 2500) |
| Operating Temperature | ≥ -196°C |
| Assembly Method | Side Entry / Top Entry |
| Ball Type | Trunnion-mounted, 2~3Pieces |
| Body Material | A350 LF2, A350 LF3, AISI 4130, AISI 4140, A182 F304, A182 F316, A182 F316L, A182 F51 (S32205), A182 F53 (S32750), Inconel 625, Incoloy 800, Hastelloy C-276, ect. |
| Seats | PEEK, PCTFE (KEL-F), Devlon V-API, PTFE |
| Design Standards | GB/T14925, BS5351, MESCSPET7/200, ASMEB16.34 |
| Connection | Flanged |
| Drive Mode | Handle, Worm Gear, Electric, Pneumatic, Hydraulic |
| Application Field | LHe, LH₂, LNG, LN₂, LOX, LCO₂, etc. |
| Brand | SLVCN |
Key Features
Reduced Port Design
Minimizes turbulence and pressure drop, making it ideal for flow-sensitive applications.
DBB Technology
Double Block and Bleed (DBB) design ensures superior safety and leak prevention.
Trunnion-Mounted Forged Construction
Enhances stability and durability in high-pressure and low-temperature environments.
Cryogenic Performance
Guarantees reliable sealing and performance at temperatures as low as -196°C.
Materials
Available in A350 LF2, Inconel 625, Hastelloy C, and other materials to meet diverse industrial needs.
Rigorous Testing
Each valve undergoes comprehensive in-house cryogenic testing to ensure consistent, reliable performance.
Product Details
The SLVCN Class 900 Reduced Port Forged DBB Trunnion-Mounted Cryogenic Ball Valve is built for reliable shut-off in extreme low-temperature applications. Its reduced port design minimizes turbulence and pressure drop, making it ideal for flow-sensitive systems.
With a forged trunnion-mounted construction and Double Block and Bleed (DBB) technology, this valve ensures safety, leak prevention, and easy maintenance. It is perfect for cryogenic fluids like LNG, Liquid Nitrogen (LN₂), and Liquid Oxygen (LOX), delivering dependable performance in harsh conditions.
Available in materials such as A350 LF2, Inconel 625, and Hastelloy, it meets global standards (ASME B16.34, GB/T14925). Each valve is rigorously tested in-house for consistent quality and long service life in low-temperature environments.
Parts List
Dimensions: Class 900 - Reduced Port
| Size | Bore | Side Entry | Top Entry | |||||||||||
| Face to Face | D in/mm | D1 in/mm | Weight | Face to Face | D2 in/mm | Weight | ||||||||
| NPS/DN | B1 in/mm | B2 in/mm | RF in/mm | RTJ in/mm | BWE in/mm | Model GG lb/kg | Model GW lb/kg | RF in/mm | RTJ in/mm | BWE in/mm | Model FT lb/kg | |||
| 2"×11/2" | 1.93 | 1.5 | 14.5 | 14.63 | 14.5 | 8.5 | 8.5 | 108 | 108 | 14.5 | 14.63 | 14.5 | 8.5 | 110 |
| 50×40 | 49 | 38 | 368 | 371 | 368 | 216 | 216 | 49 | 49 | 368 | 371 | 368 | 216 | 50 |
| 3"X2" | 2.94 | 1.94 | 15 | 15.13 | 15 | 9.5 | 9.5 | 150 | 150 | 15 | 15.13 | 15 | 9.5 | 159 |
| 80×50 | 74 | 49 | 381 | 384 | 381 | 241 | 241 | 68 | 68 | 381 | 384 | 381 | 241 | 72 |
| 4"X3" | 3.94 | 2.94 | 18 | 18.13 | 18 | 11.5 | 11.5 | 254 | 254 | 18 | 18.13 | 18 | 11.5 | 320 |
| 100×80 | 100 | 74 | 457 | 460 | 457 | 291 | 291 | 115 | 115 | 457 | 460 | 457 | 291 | 145 |
| 6"×4" | 5.94 | 3.94 | 24 | 24.13 | 24 | 15 | 15 | 481 | 481 | 24 | 24.13 | 24 | 15 | 595 |
| 150×100 | 150 | 100 | 610 | 613 | 610 | 381 | 381 | 218 | 218 | 610 | 613 | 610 | 381 | 270 |
| 8"×6" | 7.94 | 5.94 | 29 | 29.13 | 29 | 18.5 | 18.5 | 948 | 948 | 29 | 29.13 | 29 | 18.5 | 1257 |
Weight and dimensions for larger valve sizes up to 36" available on request

If you want to obtain the complete size, please contact us
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