18061659285
Cryogenic Top Entry Floating Ball Valve with Extended Stem
Product Parameters
| Valve Type | Cryogenic Top Entry Floating Ball Valve |
| Connection Size | 1/2" – 12" (DN15 – DN300, larger sizes available upon request) |
| Pressure Rating | Class 150 / 300 / 600 / 900 / 1500 Optional |
| Temperature Range | -196°C ~ +80°C (depending on materials and seat design) |
| Body Material | ASTM A350 LF2, WCB, 304L, 316L, 321, 9Cr-1Mo, 1.4418, 2205; other materials available upon request |
| Seat Material | PTFE / RPTFE / PCTFE / Metal Seat |
| Stem Packing | PTFE, RPTFE, Graphite, or PCTFE for ultra-low temperature service |
| End Connection | Flanged (RF) or Butt Weld (BW) |
| Port Design | Full Port / Reduced Port |
| Operation | Manual Lever, Worm Gear, Electric Actuator, Pneumatic Actuator, Hydraulic Actuator (optional) |
| Extended Stem | Suitable for insulated pipelines or buried installation |
| Design Standards | Manufactured in compliance with API 6D, ASME B16.34, BS 5351 |
| Fire-Safe Design | Optional fire-safe design available per API 607 / API 6FA |
| Cryogenic Performance | Tested for zero-leakage under ultra-low temperature conditions |
| Automation Ready | ISO 5211 mounting pad for easy actuator installation |
| Brand | SLVCN |
Key Features
Safety Features
Anti-static, anti-blowout stem, and fire-safe design for secure operation.
Top Entry Construction
Enables in-line maintenance without pipeline removal.
Precision Floating Ball
Ensures smooth operation and bubble-tight shut-off.
Extended Stem Design
Protects packing from cryogenic exposure for long-term sealing reliability.
ISO 5211 Mounting Pad
Compatible with manual, pneumatic, electric, and hydraulic actuators.
Customizable Materials & Testing
Body, ball, seat, and stem can be tailored; all valves undergo in-house cryogenic testing.
Product Details
The SLVCN Cryogenic Top Entry Floating Ball Valve is engineered for LNG, LPG, hydrogen, oxygen, and industrial gas applications operating at temperatures as low as -196°C. The extended stem design isolates the packing area from cryogenic exposure, ensuring long-term sealing integrity and operational safety in extreme low-temperature environments.
Its top entry construction enables in-line maintenance without removing the valve from the pipeline, reducing downtime in critical energy systems. The precision floating ball mechanism provides smooth torque performance and reliable bubble-tight shut-off.
Manufactured from high-grade stainless steel materials such as 316L and 304L, the valve is suitable for LNG terminals, air separation units (ASU), liquid nitrogen systems, and industrial gas pipelines. An advanced sealing packing system helps minimize fugitive emissions, while anti-static device, anti-blowout stem, and fire-safe design enhance overall safety performance.
Body, ball, seat, and stem materials can be customized according to specific cryogenic media and project requirements. All SLVCN cryogenic valves undergo in-house low-temperature performance testing to verify sealing integrity and operational stability before delivery.
This valve delivers a safe, durable, and maintenance-efficient solution for demanding cryogenic service worldwide.
Decades of Expertise
Tailored Solutions
Rigorous Quality Control
Proven Reliability
How We Ensure Quality & Reliability?
Quality is built into every stage - from raw material to final testing.
CE Certificate
ISO9001 Certificate
Certificate for Credit for Quality Service
Certificate of Observing Contract and Keeping Promise
Trademark Certificate