TECHNICAL DATA SHEET
Product Name: 2-inch 900LB 2-Piece Cryogenic Floating Ball Valve
Model/Specification: 2″-900LB-CRYO-2PC-RTJ
Vana növü: 2-Piece Floating Ball Valve (Cryogenic Service)
Connection Type: RTJ Flanged (Ring Type Joint) – ASME B16.5
Korpus materialı: Stainless Steel – ASTM A182 F316
- Basic Design Parameters
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Parametr
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Standard/Specification
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Ölçü
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2 inches (DN50)
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Pressure Class
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Class 900 LB (PN150 / 2250 PSI)
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Bədən materialı
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Forged Stainless Steel – ASTM A182 F316
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Manufacturing Process
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Forged Steel (Close Die Forged)
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Design Standard
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API 608 / API 6D / ASME B16.34 / BS 6364 (Cryogenic)
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End Connection Standard
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ASME B16.5 – RTJ Flanged (Ring Type Joint)
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Face to Face Standard
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ASME B16.10 / API 6D
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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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Parametr
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Details
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Vana növü
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2-Piece Floating Ball Valve, Bolted Body Construction
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Body Type
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Two-Piece Bolted Body with Side Entry
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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 PEEK)
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Applicable Media
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LNG, LOX, LIN, LAr, Ethylene, LPG, and other cryogenic fluids
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Buruq Tipi
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Full Bore (Standard) / Reduced Bore (Optional)
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Ball Type
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Floating Ball (pressure-assisted sealing)
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Seat Type
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PCTFE / PEEK (Cryogenic grade soft seats)
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Sealing Principle
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Upstream sealing – ball floats against downstream seat under pressure
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Əməliyyat
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Lever Handle / Gearbox / Pneumatic Actuator / Electric Actuator
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Antistatik Cihaz
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API 608 / API 6D Requirement (Standard) – Spring-loaded ball between ball and stem
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Blow-Out Proof Stem
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Standart
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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
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Integral extended bonnet with drip plate (ice prevention)
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Locking Device
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Available for safety lockout
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- Material of Construction (F316 Stainless Steel)
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Part Name
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Material
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Standard/Grade
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Body (2 pieces)
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Forged Stainless Steel – F316
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ASTM A182 F316
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End Connector (RTJ)
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Forged Stainless Steel – F316
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ASTM A182 F316
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Top
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Stainless Steel – F316 (Hardened, Chrome plated optional)
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ASTM A182 F316
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Kök
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Stainless Steel – F316 / 17-4PH
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ASTM A182 F316 / 17-4PH
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Seat Rings
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PCTFE (KEL-F®) / PEEK
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Cryogenic grade, self-relieving
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Body Gasket
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Spiral Wound
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Stainless Steel + Graphite
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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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Thrust Bearings
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PTFE + Stainless Steel
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Self-lubricating
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Antistatik Cihaz
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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 – B8 / 8
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ASTM A193 B8 / A194 8
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Drip Plate
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Stainless Steel – F316
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Welded to bonnet
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Handle / Gear
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Stainless Steel / Carbon Steel
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With locking option
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- Main Dimensions & Connection Details
Note: Dimensions for 2″ Class 900 RTJ Flanged Cryogenic Ball Valve. Based on ASME B16.10, API 6D, and industry standards for cryogenic extended bonnet.
4.1 End-to-End Dimensions (Face-to-Face – RTJ)
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Ölçü
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Pressure Class
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L (RTJ) mm
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L (RTJ) in
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H (Open) mm
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H (Open) in
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W (Gear) mm
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Weight (approx. kg)
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2″
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900LB
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368
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14.5
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~450
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~17.7
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~350
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~60-80
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Note: Height (H) includes extended bonnet for cryogenic service. Weight depends on actuator/gearbox choice.
4.2 RTJ Flange Details (Per ASME B16.5 – Class 900)
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Parametr
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2″ RTJ Flange
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Flange Diameter (OD)
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215 mm (8.5 in)
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Bolt Circle Diameter (PCD)
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165.1 mm (6.5 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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25.4 mm (1.0 in)
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Bolt Thread Size
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7/8″ UNC
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RTJ Groove Number
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R-20 or RX-35 (per ASME B16.20)
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Groove Depth
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8.5 mm (0.33 in) approx.
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Hub Diameter
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127 mm (5.0 in)
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Ring Gasket Material
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Soft Iron / Stainless Steel (as per service)
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4.3 Extended Bonnet (Cryogenic Feature)
- Extension Length: Designed to keep stem packing above frost line (typically 200-300 mm for 2″ valve at -196°C).
- Drip Plate: Included to prevent ice formation on body/bonnet joint.
- Heat Transfer Design: Narrow clearance between stem and bonnet ID ensures packing near ambient temperature.
- Material: F316 stainless steel (same as body).
- Pressure-Temperature Rating (ASME B16.34 / Class 900)
*Material Group: Stainless Steel – ASTM A182 F316 with PCTFE/PEEK 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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Notes
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-196 to -46
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150
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2175
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Cryogenic Range (BS 6364 certified)
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-29 to 38
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150
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2175
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Maximum Rating (Class 900)
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50
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148
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2145
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100
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140
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2030
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150
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132
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1915
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Max for PCTFE
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200
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124
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1800
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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.*
- 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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225
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3260
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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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165
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2390
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1.1 x 38°C Rating (Zero leakage – soft seats)
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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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- Flow Characteristics (2″ – Full Bore)
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Parametr
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Value
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Port Diameter (Full Bore)
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~51 mm (2.0 in)
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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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Flow Characteristic
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Quick Opening (On-Off)
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Shut-off Class
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API 598 / BS 6364 (Zero Leakage – Soft Seat)
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Buruq Tipi
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Full Bore (minimal pressure drop)
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- Features & Applications
- Key Features:
- 2-Piece Forged Body: Allows in-line maintenance of trim while providing robust, leak-free construction.
- Cryogenic Service Capability: Designed for temperatures as low as -196°C (-320°F) , suitable for LNG, LOX, LIN, and other liquefied gases.
- Extended Bonnet: Protects stem seals from extreme cold, ensuring operability and preventing ice formation.
- Floating Ball Design: Ball floats against downstream seat, providing tight, bidirectional sealing.
- RTJ Flanged Ends: Metal-to-metal ring joint seal for high-pressure and high-integrity applications.
- No-Trap Cavity Design: Relief hole in ball or self-relieving seats prevents dangerous pressure buildup due to vaporization of trapped cryogenic liquid.
- Anti-Static Device: Dissipates static charge, critical for flammable media like LNG.
- Blow-out Proof Stem: Retained within body even if gland is removed.
- Fire-Safe Design: Optional API 607 certification ensures sealing integrity in case of fire.
- BS 6364 Certification: Designed and tested to international cryogenic valve standard.
- NACE MR0175 Compliance: Optional for sour service (H₂S) environments.
- Lockable Handle / Gear: Safety lockout capability for maintenance.
- Main Applications:
- LNG (Liquefied Natural Gas): Liquefaction, storage, transportation, and regasification plants.
- Air Separation Units (ASU): Handling LOX, LIN, LAr.
- Petrochemical: Ethylene, propylene, LPG, and other cryogenic hydrocarbons.
- Industrial Gas: Cryogenic storage tanks and transfer lines.
- Refrigeration Systems: Low-temperature industrial refrigeration.
- High-Pressure Cryogenic Systems: Class 900 applications.
- Comparison: 2-Piece vs. 3-Piece Design
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Feature
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2-Piece Construction
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3-Piece Construction
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Body Joints
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One bolted joint (body to end cap)
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Two bolted joints (end caps to center body)
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In-Line Maintenance
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Limited – requires removal from line for full trim access
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Easy – end caps can be removed without taking valve out of line
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Weight
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Lighter
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Slightly heavier
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Cost
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Lower
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Higher
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Typical Use
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General purpose, cost-sensitive
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High-maintenance, frequent cleaning applications
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*For cryogenic service, 2-piece design offers reliable performance with fewer potential leak paths.*
- Ordering Information
Please specify when ordering:
- Valve size: 2″ (DN50)
- Pressure class: 900LB
- Body material: F316 (ASTM A182 F316)
- End connections: RTJ Flanged (ASME B16.5)
- Seat material: PCTFE / PEEK
- Bore type: Full Bore (Standard)
- Operation: Lever handle / Gearbox / Pneumatic actuator / Electric actuator
- Special requirements: Fire-safe (API 607), NACE MR0175, oxygen cleaning, PMI testing
- Certifications: Material Test Reports (EN 10204 3.1/3.2), BS 6364 cryogenic test certificate
*Disclaimer: The above data is prepared based on common industry standards (API 608, API 6D, ASME B16.34, BS 6364) for 2-piece cryogenic floating ball valves with RTJ ends . RTJ flanges provide reliable metal-to-metal sealing at high pressures and low temperatures. Specific dimensions may vary by manufacturer. The final technical agreement and certified drawings shall prevail.*
ZƏMANƏT:
SAVVY VALVES müstəsna məhsul keyfiyyəti və narahatlıqsız satış sonrası xidmət göstərməyə sadiqdir. Bizim klapanlarımıza minimum 12 ay xidmət müddətinə zəmanət verilir, bu müddət ərzində biz bütün zəruri ehtiyat hissələri və ətraflı texniki xidmət təlimatlarını pulsuz təmin edəcəyik. Zəmanət müddəti ərzində insan tərəfindən törədilməmiş hər hansı zədə baş verərsə, biz komponentləri heç bir ödəniş etmədən əvəz edəcəyik və peşəkar texniki dəstək göstərəcəyik. Zəmanət müddəti bitdikdən sonra müştərilər endirimli texniki xidmətlərdən yararlanmaqla yanaşı, yalnız ehtiyat hissələrinin dəyərini ödəməlidirlər. Məqsədimiz etibarlı keyfiyyət və hərtərəfli satış sonrası dəstək vasitəsilə müştərilərə əməliyyat xərclərini azaltmaq və istehsal səmərəliliyini artırmaqda kömək etməkdir. İstər texniki sorğular, istərsə də texniki xidmət tələbləri üçün mütəxəssis komandamız klapan sisteminizin hər zaman optimal işləməsini təmin etmək üçün dərhal cavab verəcəkdir.