Extended Stem Ball Valve, BS 5351, A182 F304, DN50, PN40, RF

The Extended Stem Ball Valve Plant provides a Cryogenic Floating Ball Valve that meets BS 5351, API 6D, and ASTM A182 F304 standards. It features a DN50 (2 Inch) size and PN40 (Class 300 LB) pressure rating. The valve is lever operated and has RF ends for secure connections. Its extended stem design enhances accessibility and maintenance.

Product Name: Extended Stem Ball Valve, Cryogenic Ball Valve
Type: Floating Ball Valve
Design Standard: BS 5351, API 6D
Body Material: ASTM A182 F304
Size: DN50, 2 Inch
Pressure: PN40, Class 300 LB
End Connection: RF Flanged
Operation: Lever
Temperature Range: -46°C to 120°C
Medium: Water, gas, oil, etc.

Forged Floating Ball Valve is designed with two PTFE seats to support the ball, one on the upstream and the other on the downstream side. The upstream pressure pushes the ball, compressing the downstream seat to achieve a complete shut-off for fluid control. All Floating Ball Valves manufactured by KOSEN feature reliable, high-quality castings and are certified for fire-safe design according to BS 6755, API 607, and API 6FA. They also meet all applicable ASME standards.
These valves are available in three types: One-Piece Uni-Body, Two-Piece Split Body, and Three-Piece Bolted Body. They are designed and manufactured in accordance with the most current international standards, including API 6D, ASME B16.34, BS 5351, or their equivalents. Standard features include Fire-Safe, Anti-Static, and Blow-Out prevention, ensuring safety and reliability in various operating conditions.

Technical Specifications

» Size Range: NPS 1/2-10 Inch (DN15-DN250)
» Design Pressure: Class 150-1500 LB (PN10-PN250)
» Materials: Forged Carbon Steel, Stainless Steel, Duplex Steel, or other special materials (ASTM A105N, A350 LF2, A182 F11, F22, F304, F304L, F316, F316L)
» Trim Materials: 13%Cr, SS 304, SS 304L, SS 316, SS 316L, and other special materials
» Seat Materials: Nylon, RPTFE, PEEK
» End Connections: RF and RTJ flange, welded
» Operation: Handle, worm gear, electric, pneumatic
» Design and Manufacture: API 6D, BS 5351, ASME B16.34
» Face-to-Face (End-to-End): ASME B16.10
» Flanged Connection: ASME B16.5
» Test and Inspection: API 598, API 6D
» Butt Welded End: ASME B16.25
» Fire Safety: API 607, API 6A
» Temperature Range: -46°C to 120°C

Product Features

» Low Operating Torque
» Emergency Sealing Device
» Fireproof Structure Design
» Anti-static Structure
» Reliable Seat Sealing Structure
» Special Structure of Automatic Pressure Relief Towards Upstream
» Blow-out Proof Stem, Stem Flyout Prevention Structure Design
» Corrosion Resistance and Sulfide Stress Resistance
» Optional Locking Device or Stem Extension
» Optional Direct Mounting to ISO 5211
» Full Port or Reduced Bore