A top entry ball valve is a specialized valve designed for easy maintenance and repair without needing to remove it from the pipeline. This feature is especially beneficial in situations where minimizing downtime is crucial, or when the valve is installed in a fixed position, making removal challenging. The top entry trunnion ball valve is typically built with a one-piece body structure, ensuring a robust and leak-proof design. Often constructed from durable materials like stainless steel, carbon steel, or other alloys, these top entry valves are tailored to meet specific application needs. Equipped with advanced sealing mechanisms, these valves provide a reliable shutoff, preventing leakage by securely sealing the ball and seats when the valve is closed.
Applicable Standards
Size Range: DN50 (2”) to DN600 (24”)
Pressure Rating: ANSI Class 150 to Class
2500Connection: Butt-weld ends to ASME B16.25; Flanged to ASME B16.5 (2” ~ 24”) and Clamp / Hub ends on request.
Body Materials: Carbon steel, ITCS, Stainless steel, Duplex, Super Duplex, Inconel 625 and other special alloys.
Top Mounting: ISO 5211 / EN15081Temp.
Range : -196°C to +200°C (-320°F to +392°F)
Design: API 6D / ASME B16.34 / ISO 14313
Face to Face: ASME B16.10* / API 6D
Fire Testing: API 607 6 Edition / ISO 10497
Pressure Testing: API 598 / API 6D / EN 12266-1/ISO 5208
Trunnion Ball
Trunnion ball valves feature anchoring at both the top and bottom of the ball. These trunnions absorb the line pressure thrust, reducing friction between the ball and seats. This results in lower operating torques, even under full working pressures.
Anti-Blow-Out Stem Design
The stem design of KFTE top entry ball valves is blow-out proof, preventing stem ejection under pressure. It fully complies with API 6D requirements.
Antistatic Device
KFTE top entry ball valves are equipped with an antistatic device that ensures electrical continuity across all metallic components, providing a safe ground path.
Fire Safe
All KFTE top entry ball valves are fire-safe by design, with fire testing performed and certified according to API 6FA and API 607 standards.
Mounting Flange
KFTE top entry ball valves come with ISO mounting flanges, fully compliant with ISO 5211, for easy actuator installation.
Applications of Trunnion Top Entry Ball Valve
Trunnion top entry ball valves are widely used in industries requiring robust flow control solutions. From oil and gas pipelines to chemical processing plants, it ensures reliable performance under high pressure and extreme temperatures. Its versatile design supports applications in power generation, refining, and marine systems, making this top entry valve a critical component for operational efficiency and safety.
Why Choose KFTE Valve for Trunnion Top Entry Ball Valve?
At KFTE, we deliver top entry valves built for durability and performance, which are crafted with precision, using high-quality materials like stainless steel and Duplex alloys to meet the demands of challenging environments. With a commitment to API and ISO standards, KFTE Valve ensures every valve offers long-term reliability and easy maintenance. Partner with us for innovative valve solutions tailored to your needs.
| Material Specification | ||||
| NO. | DESCRIPTION | CARBON STEEL | L.T CARBON STEEL | STAINLESS STEEL |
| 1 | BODY | A216 WCB | A352 LCC | A351 CF8/CF8M |
| 2 | SEAT RING | A182 F304+PTFE | A182 F304+PTFE | A182 F304+PTFE |
| 3 | BALL | A182 F304 | A182 F304 | A182 F304/F316 |
| 4 | SPRING | 65Mn | 65Mn | 65Mn |
| 5 | SHAFT | A182 F6A | A182 F6A | A182 F6A |
| 6 | GASKET | SS304+FLEXIBLE GRAPGITE | SS304+FLEXIBLE GRAPGITE | SS304+FLEXIBLE GRAPGITE |
| 7 | PACKING | FLEXIBLE GRAPGITE | FLEXIBLE GRAPGITE | FLEXIBLE GRAPGITE |
| 8 | BONNET | A216 WCB | A352 LCC | A351 CF8/CF8M |
| 9 | BOLT | A193 B7 | A320 L7 | A193 B8M |
| 10 | PIN | CARBON STEEL | CARBON STEEL | STAINLESS STEEL |
| 11 | PACKING GLAND | A216 WCB | A352 LCC | A351 CF8/CF8M |
| 12 | LIMIT PLATE | CARBON STEEL | CARBON STEEL | STAINLESS STEEL |
| 13 | NUT | A194 2H | A194 7 | A194 8M |
| 14 | LEVER | CARBON STEEL | CARBON STEEL | STAINLESS STEEL |
| Material Specification | ||||
| NO. | DESCRIPTION | CARBON STEEL | L.T CARBON STEEL | STAINLESS STEEL |
| 1 | PLUG | A105 | A350 LF2 | A182 F304/F316 |
| 2 | GASKET | SS304+GRAPHITE | SS304+GRAPHITE | SS304+GRAPHITE |
| 3 | BODY | A105 | A350 LF2 | A182 F304/F316 |
| 4 | ADJUST GASKET | STAINLESS STEEL | STAINLESS STEEL | STAINLESS STEEL |
| 5 | AXLE | A182 F6A | A182 F6A | A182 F304/F316 |
| 6 | BEARING | STAINLESS STEEL | STAINLESS STEEL | STAINLESS STEEL |
| 7 | BALL | A182 F304+STL | A182 F304+STL | A182 F304+STL |
| 8 | SEAT | A182 F304+STL | A182 F304+STL | A182 F304+STL |
| 9 | SEAL | FLEXIBLE GRAPHITE | FLEXIBLE GRAPHITE | FLEXIBLE GRAPHITE |
| 10 | SEAT RING | A182 F304 | A182 F304 | A182 F304 |
| 11 | SPRING | INCONEL X-750 | INCONEL X-750 | INCONEL X-750 |
| 12 | BONNET | A105 | A350 LF2 | A182 F304/F316 |
| 13 | GASKET | SS304+GRAPHITE | SS304+GRAPHITE | SS304+GRAPHITE |
| 14 | BOLT | A193 B7 | A320 L7 | A193 B8M |
| 15 | NUT | A194 2H | A194 7 | A194 8M |
| 16 | SHAFT | A182 F6A | A182 F6A | A182 F304/F316 |
| 17 | BEARING | A182 F304 | A182 F304 | A182 F304 |
| 18 | RING | A182 F304 | A182 F304 | A182 F304 |
| 19 | PACKING | FLEXIBLE GRAPHITE | FLEXIBLE GRAPHITE | FLEXIBLE GRAPHITE |
| 20 | PACKING GLAND | A105 | A350 LF2 | A182 F304/F316 |
| 21 | PACKING | FLEXIBLE GRAPHITE | FLEXIBLE GRAPHITE | FLEXIBLE GRAPHITE |
| 22 | BOLT | A193 B7 | A320 L7 | A193 B8M |
| 23 | LIMIT PLATE | SS304 | SS304 | SS304 |
| 24 | YOKE | CARBON STEEL | CARBON STEEL | CARBON STEEL |
| 25 | GEAR | - | - | - |
| Material Specification | ||||
| NO. | DESCRIPTION | CARBON STEEL | L.T CARBON STEEL | STAINLESS STEEL |
| 1 | BODY | A216 WCB | A352 LCC | A351 CF8/CF8M |
| 2 | BALL | A182 F304 | A182 F304 | A182 F304/F316 |
| 3 | BOLT | A193 B7 | A320 L7 | A193 B8M |
| 4 | NUT | A194 2H | A194 7 | A194 8M |
| 5 | PACKING | PTFE | PTFE | PTFE |
| 6 | PACKING GLAND | A216 WCB | A352 LCC | A351 CF8/CF8M |
| 7 | GEAR | - | - | - |
| 8 | BOLT | A193 B7 | A320 L7 | A193 B8M |
| 9 | NUT | A194 2H | A194 7 | A194 8M |
| 10 | BONNET | A216 WCB | A352 LCC | A351 CF8/CF8M |
| 11 | SPRING | 65Mn | 65Mn | 65Mn |
| 12 | SEAL | RPTFE | RPTFE | RPTFE |
| 13 | SHAFT | A182 F6A | A182 F6A | A182 F6A |