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 issues associated with seal rings and addresses the problems of seat and spherical sealing in traditional ball valves. Non-metallic elastic materials are embedded in the metal seat, protecting the metal surface of the seat. This product is particularly suitable for media such as steel, aluminum, fibers, small solid particles, pulp, fly ash, and petroleum gases.
● Top-Entry Design: This configuration permits direct access to internal components for maintenance, inspection, or replacement while the system remains online, thus eliminating the necessity to remove valves from the system.
● Gear Operation: A mere 90-degree rotation facilitates rapid and precise control response, making it an optimal option for on-site adjustments.
● Eccentric Hemisphere Body: This characteristic allows for 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 material and top-mounted ball valve design fully consider maintenance needs. The top-mounted structure and modular design facilitate maintenance, thereby reducing downtime during inspection or repair. 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 choice for teams that prioritize pipeline performance and practicality.
