

Top Entry Ball Valve
High Performance • Durable • Leak Proof
Top Entry Ball Valve allows in-line maintenance without removing the pipeline, providing reliable isolation.
Top Entry Ball Valve Supplier in Nigeria, provides top entry ball valves designed with access to the internal components through the top of the valve body. This construction allows the ball, seats and other internal components to be inspected or serviced without removing the complete valve from the pipeline in suitable installations. Top entry ball valves are widely used in oil & gas production, pipelines, refineries, petrochemical facilities, gas processing plants, power generation and other critical process applications.
Where Are Top Entry Ball Valves Used?
Top Entry Ball Valves are commonly used in oil and gas pipelines, refineries, petrochemical plants, natural gas transmission systems, power generation, chemical processing, mining, and other industrial process facilities. Their main advantage is the ability to access the ball, seats, and other internal components from the top, which can simplify maintenance and reduce pipeline downtime. Top-entry designs are particularly useful in critical services where valve removal would require significant pipeline disassembly.
Technical Specifications
Parameter | Specification |
Valve Type | Top Entry Ball Valve |
Application | Oil & Gas / Pipeline / Refinery / Petrochemical / Gas Processing |
Size Range | Typically NPS 2 to 48 in. |
Pressure Rating | ASME Class 150 / 300 / 600 / 900 / 1500 / 2500 |
End Connection | Flanged / RTJ / Butt-Weld |
Ball Configuration | Trunnion Mounted |
Bore | Full Bore / Reduced Bore |
Seat Type | Soft Seat / Metal Seat |
Sealing | Single Piston / Double Piston Effect, depending on design |
Operation | Gear / Pneumatic / Electric |
Materials & Components
Body: ASTM A216 WCB / ASTM A352 LCB / ASTM A105 / ASTM A350 LF2 / ASTM A182 F304 / ASTM A182 F316 / Duplex / Super Duplex
Ball: ASTM A105 / ASTM A182 F304 / ASTM A182 F316 / ASTM A995 Duplex / Super Duplex
Stem: AISI 316 / AISI 410 / UNS S17400 (17-4PH) / Duplex Stainless Steel
Trunnion: Carbon Steel / Stainless Steel / Duplex / Alloy Steel
Seat: PTFE / RPTFE / PEEK / Nylon / Metal-to-Metal Seat
Seat Springs: Stainless Steel / Inconel / Alloy Steel




