Spring Return Floating Ball Valve, API 6D, A351 CF8M, 4 Inch

The Spring Return Floating Ball Valve Factory offers a high-performance API 6D compliant valve. Constructed from cast stainless steel (ASTM A351 CF8M), this 4-inch (DN100) valve features a pressure class of 150 LB and a PN20 rating, ensuring durability and reliability. The spring return mechanism allows for automatic return to a safe position, enhancing safety and efficiency. Its RF flanged ends ensure secure and leak-free connections, making it ideal for critical industrial applications requiring robust performance and corrosion resistance.

Product Name: Spring Return Floating Ball Valve
Type: Floating Ball Valve
Design Standard: API 6D
Body Material: ASTM A351 CF8M
Size: 4 Inch, DN100
Pressure: Class 150 LB, PN20
End Connection: RF Flanged
Operation: Spring Return Handle
Temperature Range: -46°C to 120°C
Medium: Water, Gas, Oil, etc.

Cast Floating Ball Valves feature a dual PTFE seat design that supports the ball on both the upstream and downstream sides. When fluid pressure builds on the upstream side, it pushes the ball against the downstream seat, creating a tight seal to fully shut off flow. Manufactured from high-quality castings, these valves offer reliable performance and are certified fire-safe according to BS 6755, API 607, and API 6FA standards, meeting all applicable ASME requirements.
Available in One-Piece Uni-body, Two-Piece Split Body, and Three-Piece Bolted Body types, these valves are designed and built to the latest international standards, including API 6D, ASME B16.34, and BS 5351 (or equivalents). Standard safety features include fire-safe design, anti-static protection, and blow-out proof stem construction for enhanced reliability and safety in demanding applications.

Technical Specifications

» Size Range: NPS 1/2-10 Inch (DN15-DN250)
» Temperature Range: -46°C to 120°C
» Design Pressure: Class 150-600 LB (PN10-PN100)
» Materials: Cast Carbon Steel, Stainless Steel, Duplex, and other special alloys
» Trim Materials: 13%Cr, SS 304, SS 304L, SS 316, SS 316L, and specials
» Seat Materials: Nylon, RPTFE, PEEK
» End Connections: FF and RF flanges, welded ends
» Operation Types: Manual handle, worm gear, electric, pneumatic actuators
» Design & Manufacture Standards: API 6D, BS 5351, ASME B16.34
» Face-to-Face Dimensions: ASME B16.10
» Flanged Connections: ASME B16.5
» Testing & Inspection: API 598, API 6D
» Butt Welded Ends: ASME B16.25
» Fire Safety Certifications: API 607, API 6FA

Product Features

» Low operating torque for easy handling
» Emergency sealing device for enhanced safety
» Fireproof structural design certified to strict industry standards
» Anti-static construction to prevent static discharge
» Reliable seat sealing for leak-tight performance
» Special automatic pressure relief design towards the upstream side
» Blow-out proof stem with flyout prevention mechanism
» Excellent corrosion resistance and sulfide stress cracking resistance
» Optional locking device or stem extension for added security and accessibility
» Optional direct mounting compatible with ISO 5211 actuators
» Available in full port or reduced bore configurations