Split body reduce bore trunnion mounted ball valve have two piece and three piece body structure.middle part is bolt connection, RPTFE seal insert into stainless steel ring with spring .keep good sealling...
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The top mounted eccentric hemisphere valve utilizes an eccentric valve body, eccentric ball, and valve seat. When the valve stem rotates, it automatically centers on a common trajectory, and the closer it is closed, the better the sealing effect is achieved. The ball and valve seat of the valve are completely separated, eliminating the wear of the sealing ring and overcoming the problem of traditional ball valve seat and ball sealing surface always wearing. Non metallic elastic materials are embedded in the metal seat, and the metal surface of the valve seat is well protected. This product is particularly suitable for media such as steel, aluminum, fiber, small solid particles, pulp, coal ash, petroleum gas, etc.
● Top-Entry Structure: Enables direct access to internal components for online maintenance, inspection, or replacement without the need to remove valves from the system.
● Gear Operation: With a simple 90 degree rotation, it achieves rapid and precise control response, making it an ideal choice for on-site adjustments.
● Eccentric Hemisphere Body: Supports flexible installation of actuators or transmissions without the need for additional brackets.
| Item | Part. Name | Material |
| 1 | Bonnet | PE |
| 2 | Extension pipe | st37 |
| 3 | Body | st37 |
| 4 | Flat washer | st37 |
| 5 | Butterfly Spring | 60Si2MnA |
| 6 | Ball seat | SS202 |
| 7 | O-ring | EPDM |
| 8 | Ball washer | PTFE+20%C |
| 9 | Ball | SS304 |
| 10 | Stem washer | PTFE+20%C |
| 11 | Stem sleeve | st37 |
| 12 | Stem | SS410 |
| 13 | Stem ring | PTFE+20%C |
| 14 | Stem O-ring | FPM |
| 15 | Sleeve | st37 |
| 16 | Positioning PIN | ASTM1035 |
| 17 | Handle | st37 |
| 18 | Washer | Q235A |
| 19 | Nut | Q235A |
| 20 | Handle cap | ABS |
| Type | Nominal pressure(MPa) | Testing pressure | Suitable temperature(°C) | Suitable medium | |
| Strength (water) (MPa) | Enclose (Water) (MPa) | ||||
| Q340 H-16C | 1.6 | 2.4 | 1.76 | -40~200ºC | Water,Vapour,Oil |
| Q340 H-25C | 2.5 | 3.75 | 2.5 | ||
Q: What is the main advantage of a top-entry valve design?
A: The top-entry design allows for maintenance or part replacement without removing the valve from the pipeline—ideal for critical systems where downtime must be minimized.
Q: Is it compliant with any specific industry standards?
A: Yes, it follows API 6D/6A and ASME B16.10 design standards, including features like firesafe design, O-ring sealing, and DBB capability.
Our gear operated forged steel top entry ball valve was manufactured with maintenance in mind. The top entrance structure and modular design make maintenance simple and minimize interruptions during inspections or repairs. This valve features DBB, self dumping seat, and fire integrity, providing reliable control and safety with each rotation. For teams seeking performance and practicality in pipeline operations, this is an ideal solution.
