Cast Steel Ball Valves
Cast steel ball valves give fast, quarter-turn, bubble-tight shut-off in larger sizes and higher pressure classes. They are standard isolation valves in oil, gas and process pipelines.
We supply floating and trunnion-mounted cast steel ball valves, full or reduced bore, with soft or metal seats, fire-safe and anti-static designs, ready for gear or actuator operation.
Specifications
| Product name | Cast Steel Ball Valve |
|---|---|
| Valve type / design | Floating or trunnion-mounted; 2-piece or 3-piece split body; full or reduced bore |
| Body material | ASTM A216 WCB; A352 LCB / LCC; SS304 / SS316 or ENP-coated ball; PTFE, RPTFE, Devlon, PEEK or metal seats |
| Size range | 2" to 24" (DN50 – DN600) |
| Pressure rating | ASME Class 150 / 300 / 600; 900 – 2500 on request |
| End connections | Flanged RF / RTJ (ASME B16.5), butt weld |
| Standards | API 6D, API 608, ASME B16.34, API 607 fire-safe, API 598 testing |
| Applications | Oil & gas pipelines, process plants, gas and water |
Industrial uses
- Oil & gas pipelinesMainline and station isolation, including pigging lines.
- Gas distributionNatural gas and LPG isolation.
- PetrochemicalProcess isolation with fire-safe design.
- Tank farmsTank inlet and outlet isolation.
- Power & utilitiesFuel gas, oil and water service.
Frequently asked questions
When do I need a trunnion-mounted ball valve?
Trunnion designs are used in larger sizes and higher pressure classes, where a floating ball would need very high torque. The fixed ball also reduces seat wear.
What is double block and bleed?
A valve that seals on both the upstream and downstream seats, with a bleed port between them, lets you confirm isolation. It is common on trunnion API 6D valves.
Soft seats or metal seats?
Soft seats (PTFE, Devlon, PEEK) give bubble-tight shut-off for clean service. Metal seats suit high temperatures and abrasive or solid-laden fluids.