1″-900LB F316 Cryogenic Floating Ball Valve

Technical Data Sheet

Cryogenic Floating Ball Valve
Size: 1 inch | Class: 900LB | Body Material: ASTM A182 F316 | Connection: RTJ Flanged

1. General Information

2. Applicable Standards

3. 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)

Parts List

Note: For cryogenic service, an extended bonnet is provided to protect the stem packing from low temperatures.

4. 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)

Valve Dimensions

Note: Dimensions are for reference only and may vary by manufacturer. Certified drawing to be used for installation.

5. Pressure & Temperature Ratings (ASME B16.34)

For ASTM A182 F316 material, Class 900.

*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)

6. Product Features

1. Cryogenic Design: Extended bonnet prevents ice formation on stem packing and ensures reliable operation at -196°C.
2. Floating Ball Design: Provides tight shut-off under high pressure; ball is free to move slightly to press against the downstream seat.
3. RTJ Flanged Ends: Ring-Type Joint connection ensures leak-tight sealing in high-pressure and high-temperature cycling services.
4. Fire-Safe Design: Compliant with API 607, secondary metal-to-metal seat contact in case of seat fire damage.
5. Anti-Static Device: Spring-loaded plunger dissipates static charge across ball and stem to body, preventing spark ignition.
6. Low Fugitive Emissions: Live-loaded packing system (Belleville washers) maintains constant compression on stem seals.
7. Full Bore (Optional): Unrestricted flow passage for minimal pressure drop (if specified).
8. Material Traceability: All pressure-containing parts are fully traceable to mill test reports.

7. 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.

8. Applicazioni

• 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.

GARANZIA:

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