L&T CS Ball Valve
L&T Carbon Steel (CS) Ball Valves: Range, Technical Specifications & Construction Types
L&T Carbon Steel Ball Valves are manufactured by L&T Valves (formerly Audco India Limited) using high-grade forged or cast carbon steel. They are built to provide tight, reliable quarter-turn shut-off for oil & gas, refining, petrochemical, power generation, and utility distribution applications.
- Main Construction Configurations
|
Design Type |
Typical Sizes & Pressure Ratings |
Standard Body Material |
Bore & Features |
|
1-Piece Unibody (Series L1) |
DN15 to DN200 (1/2" to 8"), ASME Class 150 / 300 |
Cast Carbon Steel (ASTM A216 Gr. WCB) |
Reduced / Regular Bore; compact, minimum potential leak paths. |
|
2-Piece Split Body (Series L2) |
DN15 to DN300 (1/2" to 12"), ASME Class 150 / 300 |
Cast Carbon Steel (ASTM A216 Gr. WCB) |
Full Bore (Full Port); low pressure drop, easy to maintain. |
|
3-Piece Bolted Body (Series L3 / EnergyMiser) |
DN15 to DN100 (1/2" to 4"), ASME Class 150 to Class 800 |
Forged Carbon Steel (ASTM A105) or Cast WCB |
Full or Reduced Bore; swing-out center section for rapid inline seat replacement. |
- Key Technical Specifications
- Design Standards: ISO 17292, API 6D, ASME B16.34, BS 5351.
- End Connections: Flanged (ASME B16.5 RF/RTJ), Screwed (NPT / BSPT), Socket-Weld (SW).
- Internal Trims: Stainless Steel SS 316 / CF8M ball and blowout-proof SS 316 stem.
- Seat Materials: Virgin PTFE, Reinforced PTFE (RPTFE), Glass/Carbon-filled PTFE, Devlon, or PEEK (for elevated temperatures/pressures).
- Fire Safety: Certified Fire-Safe to API 607 / ISO 10497 / API 6FA with secondary metal-to-metal seating.
- Safety Features: Built-in anti-static grounding mechanisms and automatic body cavity pressure relief.
