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 hemispherical valve employs an eccentric valve body, an eccentric ball, and a seat. As the valve stem rotates, it aligns automatically with the common path, ensuring a tighter closure and superior sealing performance. The ball is entirely separated from the seat, which eliminates wear on the seal ring and addresses the issue of wear on the traditional ball valve seat and ball sealing surface. Non-metallic elastic materials are embedded within the metal seat, safeguarding the metal surface of the valve seat. This product is especially suitable for media such as steel, aluminum, fibers, small solid particles, pulp, coal ash, and petroleum gas.
● Top-Entry Structure: This design allows for direct access to internal components for online maintenance, inspection, or replacement, eliminating the need to remove valves from the system.
● Gear Operation: A simple 90-degree rotation enables rapid and precise control response, making it an ideal choice for on-site adjustments.
● Eccentric Hemisphere Body: This feature supports flexible installation of actuators or transmissions, negating 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-mounted ball valve design fully considers maintenance needs. The top-mounted structure and modular design facilitate simple maintenance, thereby reducing downtime during inspections or repairs. This valve features double block and bleed (DBB), self-tilting seats, and fire integrity, ensuring reliable control and safety with each rotation. It is an ideal solution for teams that prioritize pipeline operation performance and practicality.
