Specification

CE F316 Top-Entry Butt-Weld Trunnion Mounted Cryogenic Ball Valve

I. Product Overview

NEWWAY CE F316 top-entry butt-weld trunnion mounted cryogenic ball valve is engineered for extreme low-temperature, high-pressure industrial service. Its top-entry design enables in-line maintenance, while butt-weld connections ensure leak-tight integration. F316 stainless steel trim delivers superior corrosion resistance, paired with cryogenic-compatible seals for -46°C to 80°C operation. CE-certified, it excels in LNG, petrochemical, and industrial gas systems requiring reliable flow control.

II. Key Attribute Parameters

Size Range: 3/4″–6″ (DN20–DN150), covering small to medium pipelines for cryogenic and high-pressure applications.

Pressure Rating: CL600 (11.0MPa) to CL1500 (26.0MPa), suited for high-pressure transmission and process systems.

Temperature Range: -46°C to +80°C (DEVLON seats) / -29°C to +80°C (RPTFE seats), adapting to cryogenic liquids and industrial fluids.

Material Configuration:

Body: LF2 (ASTM A350) for low-temperature toughness.

Trim: F316 (ASTM A182) for corrosion resistance to chlorides and acids.

Seats: DEVLON (cryogenic resilience) or RPTFE (chemical resistance).

End Connections: Butt-weld (ASME B16.25) for high-integrity pipeline bonding.

Certifications: CE, validating compliance with EU pressure equipment standards.

III. Structural Features

Top-Entry Design: Allows internal component access without pipeline disassembly, cutting maintenance downtime by 50% in critical systems.

Trunnion-Mounted Ball: Supported by F316 trunnions to distribute pressure, preventing seat wear and ensuring stable sealing under CL1500 conditions.

Cryogenic Sealing: DEVLON seats maintain elasticity at -46°C; RPTFE achieves ANSI/FCI Class VI leakage for toxic media.

Anti-Blowout Stem: Integral design with retention shoulder enhances safety in high-pressure cryogenic services.

Product Overview

IV. Manufacturing Processes

Material Validation: LF2 and F316 undergo ultrasonic testing and spectral analysis to confirm low-temperature and corrosion-resistant properties.

Precision Machining: CNC-machined components (±0.05mm tolerance) ensure trunnion alignment and ball-seat contact.

Seat Bonding: DEVLON/RPTFE seats are lapped to the ball for uniform sealing, with high-strength adhesive securing them to the body.

Testing: Hydrostatic (1.5×rated pressure), cryogenic immersion (-46°C), and helium leak tests validate performance.

Valve Details

V. Product Advantages

In-Line Maintenance: Reduces shutdowns in continuous processes like LNG terminals.

High-Pressure Stability: Trunnion design prevents seat extrusion under CL1500, ensuring reliability in oil & gas transmission.

Corrosion Resistance: F316 trim withstands harsh media, extending service life to 20+ years.

Cryogenic Reliability: DEVLON seats handle extreme cold without leakage, critical for liquid nitrogen/oxygen systems.

Application

VI. Application Fields

LNG Infrastructure: Controls LNG transfer and storage, withstanding -46°C temperatures.

Petrochemicals: Regulates hydrocarbons in high-pressure reactors, leveraging F316’s corrosion resistance.

Industrial Gases: Manages liquid nitrogen/argon in production, ensuring safe, leak-free operation.