Technical Data Sheet
Cryogenic Floating Ball Valve
Size: 1 inch | Class: 900LB | Body Material: ASTM A182 F316 | Connection: RTJ Flanged
- General Information
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Item
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Description
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Product Name
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Cryogenic Floating Ball Valve
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Rozmiar nominalny
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1 inch (DN25)
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Pressure Class
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Class 900 LB
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Connection Type
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Flanged, Ring-Type Joint (RTJ) as per ASME B16.5
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Działanie
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Manual Lever / Gearbox (Optional)
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Applicable Media
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LNG, LO2, LN2, LAr, Ethylene, Other Cryogenic Fluids
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Design Temperature
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-196°C to +80°C (Cryogenic Service)
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- Applicable Standards
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Część
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Standard
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Design & Manufacture
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ASME B16.34, API 608, ISO 17292, BS 6364 (Cryogenic)
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Face-to-Face Dimensions
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ASME B16.10
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Flange Dimensions
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ASME B16.5 Class 900 (RTJ)
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Pressure Testing
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API 598, ISO 5208, BS 6364 (Cryogenic Test)
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Fire-Safe Design
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API 607 / ISO 10497
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Antystatyczny
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API 608 / BS 5351
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Marking
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MSS SP-25
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- Material of Construction
All pressure-containing parts are made of Austenitic Stainless Steel ASTM A182 F316, suitable for cryogenic service down to -196°C.
Chemical Composition (ASTM A182 F316)
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Element
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% (Typical)
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Carbon (C)
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≤0.08
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Manganese (Mn)
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≤2.00
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Phosphorus (P)
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≤0.045
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Sulfur (S)
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≤0.030
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Silicon (Si)
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≤0.75
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Chromium (Cr)
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16.0 – 18.0
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Nickel (Ni)
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10.0 – 14.0
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Molybdenum (Mo)
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2.0 – 3.0
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Parts List
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Part Name
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Material
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Standard / Grade
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1
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Ciało
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Stainless Steel
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ASTM A182 F316
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2
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End Cap / Bonnet
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Stainless Steel
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ASTM A182 F316
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3
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Piłka
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Stainless Steel
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ASTM A182 F316 + Chromium Plating / SS316
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4
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Trzon
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Stainless Steel
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ASTM A182 F316 / 17-4PH (Optional)
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5
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Seat (Sealing Rings)
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PTFE / PCTFE / PEEK
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Virgin / Glass-Filled (Cryogenic Grade)
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6
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Seat Insert (Body)
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Stainless Steel
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ASTM A182 F316
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7
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Body Gasket
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Stainless Steel + Graphite
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Spiral Wound / RTJ Metal Gasket (for Body Seal)
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8
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Stem Seal (Packing)
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PTFE / Graphite
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Chevron Packing / Live-Loaded
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9
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Thrust Washer
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Stainless Steel + PTFE
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–
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10
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Urządzenie antystatyczne
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Stainless Steel + PTFE
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Ball-Spring-Plunger (as per API 608)
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11
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Extended Bonnet (Neck)
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Stainless Steel
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ASTM A182 F316 (for Cryogenic Service)
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12
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Gland Flange
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Stainless Steel
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ASTM A182 F304/F316
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13
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Studs & Nuts
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Stainless Steel / Alloy Steel
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ASTM A193 B8 / A194 8
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14
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Handwheel / Lever
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Carbon Steel / Stainless Steel
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–
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Note: For cryogenic service, an extended bonnet is provided to protect the stem packing from low temperatures.
- Dimensions (1″ – Class 900 LB RTJ Flanged)
Reference Standard: ASME B16.10 & ASME B16.5 Class 900
Flange Details (ASME B16.5 Class 900 RTJ)
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Description
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Inch
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mm
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Pipe Size
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1″
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DN25
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Flange Outer Diameter (OD)
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5.00″
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127 mm
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Flange Thickness (TF)
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1.06″
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27 mm
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RTJ Groove Number
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R-16
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(as per ASME B16.20)
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RTJ Groove Depth
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0.31″
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7.9 mm
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Bolt Circle Diameter (BC)
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3.62″
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92.1 mm
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Bolt Hole Diameter
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0.88″
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22 mm
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Number of Bolt Holes
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4
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4
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Valve Dimensions
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Dimension
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Inch (approx)
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mm (approx)
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Face-to-Face Length (L)
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8.50″
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216 mm
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Overall Height (H) (Center to Top of Extended Bonnet)
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12.6″
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320 mm
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Handwheel Diameter (W)
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8″
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200 mm
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Approx. Weight
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25 lbs
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12 kg
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Note: Dimensions are for reference only and may vary by manufacturer. Certified drawing to be used for installation.
- Pressure & Temperature Ratings (ASME B16.34)
For ASTM A182 F316 material, Class 900.
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Temperature (°F)
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Temperature (°C)
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Max. Working Pressure (psig)
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-20 to 100
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-29 to 38
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2160
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200
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93
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1945
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300
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149
|
1745
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400
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204
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1570
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500
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260
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1420
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600
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316
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1295
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700
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371
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1180
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800
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427
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1070
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*For cryogenic temperatures down to -196°C, pressure rating remains at the 100°F rating (2160 psig) per ASME B16.34.*
Test Pressures (Per API 598):
- Shell Test: 4500 psig (Hydrostatic)
- Seat Test (High Pressure): 3240 psig (Hydrostatic)
- Seat Test (Low Pressure): 60 psig (Pneumatic)
- Cryogenic Test: Per BS 6364 at -196°C (Optional requirement)
- Product Features
- Cryogenic Design: Extended bonnet prevents ice formation on stem packing and ensures reliable operation at -196°C.
- Floating Ball Design: Provides tight shut-off under high pressure; ball is free to move slightly to press against the downstream seat.
- RTJ Flanged Ends: Ring-Type Joint connection ensures leak-tight sealing in high-pressure and high-temperature cycling services.
- Fire-Safe Design: Compliant with API 607, secondary metal-to-metal seat contact in case of seat fire damage.
- Anti-Static Device: Spring-loaded plunger dissipates static charge across ball and stem to body, preventing spark ignition.
- Low Fugitive Emissions: Live-loaded packing system (Belleville washers) maintains constant compression on stem seals.
- Full Bore (Optional): Unrestricted flow passage for minimal pressure drop (if specified).
- Material Traceability: All pressure-containing parts are fully traceable to mill test reports.
- Testing & Inspection
- Visual Examination: Per MSS SP-55
- Dimensional Check: Per ASME B16.10 & B16.5
- Hydrostatic Shell Test: 1.5 x 900LB rating at ambient temperature (as per API 598)
- Hydrostatic Seat Test: 1.1 x 900LB rating (high pressure)
- Low Pressure Pneumatic Seat Test: 60 psig air
- Cryogenic Test (Optional): Per BS 6364: at -196°C, cycling test with helium leak detection (leak rate ≤ 100 mm³/s)
- Non-Destructive Examination (Optional): PT/RT on castings, UT on forged bodies if required.
- Applications
- LNG (Liquefied Natural Gas) plants and terminals
- Air separation units (ASU)
- Cryogenic storage and transportation
- Petrochemical plants handling light hydrocarbons
- Refrigeration systems
Disclaimer: The information provided in this datasheet is for general reference only. For specific applications and critical installations, please consult the manufacturer for certified drawings, torque specifications, and cryogenic test reports.
GWARANCJA:
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