Audco Screwed Socket Weld End Ball Valve
Audco Screwed / Socket Weld End Ball Valves: Technical Guide & Specifications
Audco (L&T Valves) 3-Piece Screwed & Socket Weld Ball Valves are industrial floating-ball control valves engineered for tight shut-off, high-pressure performance, and low operational torque. Featuring a three-piece body design, these valves offer online maintainability via a "swing-out" center section, allowing rapid inspection and seal replacement without disconnecting the pipe ends from the process line.
Key Technical Specifications
|
Feature |
Engineering Specification |
|
Design Standards |
ISO 17292, API 608, ASME B16.34, BS 5351 |
|
Testing Standards |
API 598 / ISO 5208 |
|
Fire-Safe Standard |
Optional Fire-Safe compliance to API 607 / ISO 10497 |
|
Size Range |
DN 15 mm to DN 50 mm (1/2" to 12" ) |
|
Pressure Ratings |
Class 150, Class 300, Class 600, Class 800 (Up to 1000–2000 PSI WOG) |
|
Bore Options |
Full Bore (FB) and Reduced/Regular Bore (RB) |
|
End Connections |
Screwed (NPT to ASME B1.20.1 / BSPT / BSP) or Socket Weld (ASME B16.11) |
Material Breakdown (MOC)
- Body & End Connectors: Cast Carbon Steel (ASTM A216 Gr. WCB), Forged Carbon Steel (ASTM A105), or Cast Stainless Steel (ASTM A351 Gr. CF8 / CF8M).
- Ball: Mirror-finished Solid Stainless Steel (ASTM A351 Gr. CF8M / SS 316).
- Stem: Stainless Steel (AISI 316 / AISI 410).
- Seats: Virgin PTFE (Standard), Reinforced PTFE (RPTFE), Glass-Filled PTFE (GFT), or PEEK for high-temperature service.
- Stem Seals & Gland Packing: Carbon-filled PTFE or Graphite (for Fire-Safe versions).
Core Engineering Advantages
- In-Line Swing-Out Maintenance: By removing three body bolts and loosening the fourth, the main body center section swings out, serving as a fulcrum to replace seats and seals without disturbing alignment.
- Blowout-Proof Stem Design: Internally entry stems prevent stem ejection under high system fluid pressures.
- Anti-Static Electrical Continuity: Built-in anti-static mechanisms ensure electrical grounding between the stem, ball, and valve body.
- Live-Loaded Stem Sealing: Belleville springs automatically compensate for seal wear and thermal expansion, preventing gland leaks.
- Actuator Mounting Pad: Features standard ISO 5211 mounting dimensions for direct mounting of pneumatic or electric actuators.
Primary Industrial Applications
- Oil & Gas Processing: High-pressure fuel lines, gas extraction headers, and condensate lines.
- Chemical & Petrochemical Facilities: Handling corrosive organic and inorganic fluids, solvents, and hydrocarbons.
- Steam & Utility Services: High-temperature saturated steam lines, cooling water loops, and compressed air systems.
- Pharmaceutical & Water Treatment: Clean fluid and chemical dosing lines utilizing stainless steel bodies.
