TECHNICAL DATA SHEET
Product Name: 2-inch 300LB Stainless Steel Cryogenic 3-Way Floating Ball Valve
Model/Specification: 2″-300LB-CRYO-3WAY
نوع الصمام: 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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المعلمة
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Standard/Specification
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مقاس
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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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مادة الجسم
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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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المعلمة
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Details
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نوع الصمام
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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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نوع التجويف
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Full Bore / Reduced Bore (Optional)
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عملية
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Lever Handle / Gearbox / Pneumatic Actuator / Electric Actuator
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جهاز مضاد للكهرباء الساكنة
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API 608 / API 6D Requirement (Standard)
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Blow-Out Proof Stem
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معيار
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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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مادة
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Standard/Grade
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جسم
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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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كرة
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Stainless Steel (Hardened)
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ASTM A182 F304 / F316 (Chrome plated optional)
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ينبع
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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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جهاز مضاد للكهرباء الساكنة
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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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مقاس
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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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المعلمة
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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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وصف
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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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ملحوظات
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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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المعلمة
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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.
ضمان:
تلتزم شركة سافي فالفز بتقديم منتجات عالية الجودة وخدمة ما بعد البيع مريحة. نضمن لصماماتنا عمر خدمة لا يقل عن ١٢ شهرًا، نوفر خلالها جميع قطع الغيار اللازمة وتعليمات الصيانة المفصلة مجانًا. خلال فترة الضمان، في حال حدوث أي ضرر غير بشري، نستبدل المكونات مجانًا ونقدم دعمًا فنيًا احترافيًا. بعد انتهاء الضمان، يدفع العميل فقط تكلفة قطع الغيار، مع الاستفادة من خدمات الصيانة المخفضة. هدفنا هو مساعدة عملائنا على خفض تكاليف التشغيل وتحسين كفاءة الإنتاج من خلال جودة موثوقة ودعم شامل لما بعد البيع. سواءً للاستفسارات الفنية أو احتياجات الصيانة، سيستجيب فريق خبرائنا على الفور لضمان الحفاظ على الأداء الأمثل لنظام صماماتك في جميع الأوقات.