TECHNICAL DATA SHEET

Product Name: 2-inch 300LB Stainless Steel Cryogenic 3-Way Floating Ball Valve
Model/Specification: 2″-300LB-CRYO-3WAY
Valve Type: 3-Way Floating Ball Valve (Cryogenic Service)
Connection Type: Flanged (RF) / Butt Weld (BW) / Threaded (NPT) User specified

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1. Basic Design Parameters

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2. Technical Specifications

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3. Material of Construction (Recommended – Stainless Steel for Cryogenic)

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4. Main Dimensions & Connection Details

*Note: Dimensions are for 2″ Class 300 3-Way Cryogenic Ball Valve with Flanged Ends (RF). BW/NPT dimensions may vary by manufacturer.*

4.1 End-to-End Dimensions (Face-to-Face)

4.2 Flange Details (Per ASME B16.5 – Class 300)

4.3 Extended Bonnet (Cryogenic Feature)

• Extension Length: Designed to keep packing box above frost line (typically 200mm – 300mm for 2″ valve, depending on service temperature [-196°C]) .

• Drip Plate: Included to prevent ice formation on the body/bonnet joint.

• Heat Transfer Design: Narrow space between stem and bonnet ID for efficient heat transfer .

4.4 Port Configuration

Note: Specify required flow pattern when ordering.

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5. Pressure-Temperature Rating (ASME B16.34 / Class 300)

*Material Group: Stainless Steel (A182 F304/F316) with PCTFE/PTFE Seats *

*Note: For cryogenic service (below -46°C), valves are tested and certified per BS 6364 at -196°C .*

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6. Flow Characteristics (2″ – Full Bore)

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7. Test Pressure (API 598 / BS 6364)

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8. Features & Applications

• Key Features:

  • Cryogenic Service Capability: Designed for temperatures as low as -196°C (-320°F) , suitable for LNG, LOX, LIN, and other liquefied gases .

  • 3-Way Configuration: T-port or L-port design allows for mixing, diverting, or switching flow in cryogenic systems.

  • Extended Bonnet: Protects the stem seals and packing from extreme cold, ensuring operability and preventing ice formation .

  • No-Trap Cavity Design: Relief hole in ball or self-relieving seats prevents dangerous pressure buildup in the ball cavity due to vaporization of trapped cryogenic liquid .

  • Efficient Heat Transfer: Narrow clearance between stem and bonnet extension maintains stem seals at near-ambient temperature .

  • Blow-out Proof Stem: Ensures stem retention under all pressure conditions.

  • Anti-Static Device: Dissipates static charge generated by ball/seat friction, critical for flammable media like LNG .

  • Fire-Safe Design: Optional API 607/6FA certification ensures sealing integrity in case of fire .

  • BS 6364 Certification: Designed and tested to international cryogenic valve standard .

  • Flexible Bonnet Installation: Bonnet can be installed at up to 45° angle for piping flexibility .

• Main Applications:

  • LNG (Liquefied Natural Gas): Liquefaction, storage, transportation, and regasification plants .

  • Air Separation Units (ASU): Handling LOX (Liquid Oxygen), LIN (Liquid Nitrogen), LAr (Liquid Argon) .

  • Petrochemical: Handling ethylene, methane, LPG, and other cryogenic hydrocarbons .

  • Industrial Gas: Cryogenic storage tanks and transfer lines.

  • Refrigeration Systems: Low-temperature industrial refrigeration.

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*Disclaimer: The above data is prepared based on common industry standards (API 6D, ASME B16.34, BS 6364) for cryogenic 3-way ball valves . Specific dimensions, materials, and pressure ratings may vary by manufacturer. For cryogenic service (below -46°C), valves must be tested per BS 6364 at -196°C. The final technical agreement and certified drawings shall prevail.