TECHNICAL DATA SHEET
Product Name: 2-inch 300LB Stainless Steel Cryogenic 3-Way Floating Ball Valve
Model/Specification: 2″-300LB-CRYO-3WAY
Loại van: 3-Way Floating Ball Valve (Cryogenic Service)
Connection Type: Flanged (RF) / Butt Weld (BW) / Threaded (NPT) User specified
- Basic Design Parameters
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Tham số
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Standard/Specification
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Kích cỡ
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2 inches (DN50)
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Pressure Class
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Class 300 LB (PN50 / 750 PSI)
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Vật liệu thân máy
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Stainless Steel (ASTM A182 F304 / F316 / F316L)
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Manufacturing Process
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Forged Steel / Cast Steel (depending on manufacturer)
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Design Standard
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API 6D / ASME B16.34 / BS 6364 (Cryogenic)
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End Connection Standard
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ASME B16.5 (Flanged RF) / ASME B16.25 (BW) / ASME B1.20.1 (NPT)
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Face to Face Standard
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ASME B16.10
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Test & Inspection Std.
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API 598 / BS 6364 (Cryogenic Test)
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Fire-Safe Design
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API 607 / API 6FA (Optional)
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Fugitive Emission
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ISO 15848-1 (Optional)
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- Technical Specifications
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Tham số
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Details
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Loại van
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3-Way Floating Ball Valve, 3-Piece Construction
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Flow Pattern
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T-Port (for mixing/diverting) / L-Port (for switching) User specified
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Bonnet Type
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Extended Bonnet (for Cryogenic Service)
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Service Temperature
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-196°C to +120°C (with PCTFE seats) / Up to +200°C (with PTFE)
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Applicable Media
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LNG, LOX, LIN, LAr, Ethylene, LPG, and other cryogenic fluids
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Loại lỗ khoan
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Full Bore / Reduced Bore (Optional)
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Hoạt động
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Lever Handle / Gearbox / Pneumatic Actuator / Electric Actuator
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Thiết bị chống tĩnh điện
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API 608 / API 6D Requirement (Standard)
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Blow-Out Proof Stem
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Tiêu chuẩn
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Cavity Pressure Relief
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Self-relieving seat design / Relief hole in ball
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Bonnet Installation Angle
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Up to 45° from vertical (12″ bonnet, per BS6364)
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- Material of Construction (Recommended – Stainless Steel for Cryogenic)
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Part Name
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Vật liệu
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Standard/Grade
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Thân hình
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Stainless Steel
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ASTM A182 F304 / F316 (Forged) or A351 CF8/CF8M (Cast)
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Bonnet / Extension
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Stainless Steel
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ASTM A182 F304 / F316
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End Caps
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Stainless Steel
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ASTM A182 F304 / F316
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Quả bóng
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Stainless Steel (Hardened)
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ASTM A182 F304 / F316 (Chrome plated optional)
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Thân cây
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Stainless Steel / 17-4PH
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ASTM A182 F316 / 17-4PH (High strength)
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Seat Seals
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PCTFE (KEL-F®) / PTFE / PEEK
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PCTFE for cryogenic service
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Stem Seals / Packing
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PCTFE / Flexible Graphite
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Low temperature stable materials
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Body Gasket
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Spiral Wound
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Stainless Steel + Graphite
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Thiết bị chống tĩnh điện
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Stainless Steel Ball + Spring
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316 SS
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Body Bolts/Nuts
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Stainless Steel
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ASTM A193 B8 / A194 8
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Handle / Lever
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Stainless Steel
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ASTM A182 F304
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- 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)
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Kích cỡ
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Pressure Class
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L (RF) mm
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L (RF) in
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H (approx. mm)
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W (Handwheel mm)
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Weight (approx. kg)
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2″
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300LB
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216
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8.5
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~230
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~280
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~30
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4.2 Flange Details (Per ASME B16.5 – Class 300)
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Tham số
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2″ Flange
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Flange Diameter (OD)
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165 mm (6.5 in)
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Bolt Circle Diameter (PCD)
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127 mm (5.0 in)
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Number of Bolt Holes
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8
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Bolt Hole Diameter
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19 mm (0.75 in)
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Bolt Thread Size
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5/8″ UNC
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Raised Face Height
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2 mm (0.06 in)
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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
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Flow Pattern
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Sự miêu tả
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T-Port (L-Port)
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180° entry and exit for mixing or diverting flow
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L-Port (T-Port)
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90° entry and exit for flow switching
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Note: Specify required flow pattern when ordering.
- Pressure-Temperature Rating (ASME B16.34 / Class 300)
*Material Group: Stainless Steel (A182 F304/F316) with PCTFE/PTFE Seats *
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Temperature (°C)
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Working Pressure (bar)
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Working Pressure (psi)
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Ghi chú
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-196 to -46
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50
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725
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Cryogenic Range (BS 6364 certified)
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-29 to 38
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50
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725
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Maximum Rating (Class 300)
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50
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50
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725
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100
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47
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680
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150
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44
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640
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Max for PTFE seats
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200
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40
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580
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With PEEK seats
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*Note: For cryogenic service (below -46°C), valves are tested and certified per BS 6364 at -196°C .*
- Flow Characteristics (2″ – Full Bore)
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Tham số
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Value
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Port Diameter (Full Bore)
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~51 mm (2.0 in) (typical for 2″ Class 300)
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Flow Coefficient Cv (approx)
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~150 – 200 (typical for 2″ full bore ball valve)
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Flow Coefficient Kv (approx)
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~130 – 170
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Shut-off Class
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API 598 / BS 6364 (Zero Leakage – Soft Seat)
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- Test Pressure (API 598 / BS 6364)
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Test Type
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Medium
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Pressure (bar)
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Pressure (psi)
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Acceptance Criteria
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Shell Test (Hydrostatic)
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Water
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75
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1088
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1.5 x 38°C Rating (no visible leakage)
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High-Pressure Seat Test
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Water
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55
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798
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1.1 x 38°C Rating (Zero leakage)
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Low-Pressure Seat Test
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Air / N2
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5.5 – 7.0
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80 – 100
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Bubble-tight
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Cryogenic Seat Test
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Helium / N2
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@ Rated Pressure
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@ Rated Pressure
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Per BS 6364 at -196°C
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- 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.
*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.
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