The top inlet gear operated ear shaft ball valve with flange connection is designed for seamless operation in high-pressure environments. The valve adopts a top inlet design, which facilitates access to internal components, maintenance, and parts replacement without the need to disassemble the valve from the pipeline. This structure reduces downtime and ensures long-term operational efficiency. This valve adopts a gear operating mechanism, which can provide smooth and controllable operation even under challenging conditions.
● Top Entry Design: This feature makes maintenance and parts replacement easy without the need to remove valves from the pipeline, reducing downtime and improving maintainability.
● Gear-Operated Mechanism: This mechanism ensures smooth and controllable operation with minimal torque, providing reliable performance even in high-pressure environments.
● Fire-Safe and Self-Relieving Seats: These seats are equipped with leak prevention functions and protection systems in case of pressure accumulation.
| Part | Material |
| Valve body | WCB,A105 |
| Shaft | 420,410 |
| Disc | Nitriding steel, wear-resistant steel |
| Seat | Nitriding steel, wear-resistant steel |
| Bearing | Aluminum - bronze |
| Packing | PTFE,Flexible graphite |
Main Dimensions
| PN(MPa) | DN(mm) | Size (mm) | |||||||||||
| d1 | L | D | D1 | D2 | D6 | f | f2 | b | Z-φd | H1 | H2 | ||
| 1.6 | 25 | 25 | 150 | 115 | 85 | 65 | - | 2 | - | 14 | 44 | - | 75 |
| 32 | 32 | 165 | 135 | 100 | 78 | - | 2 | - | 16 | 48 | - | 105 | |
| 40 | 40 | 180 | 145 | 110 | 85 | - | 3 | - | 16 | 48 | - | 95 | |
| 50 | 50 | 200 | 160 | 125 | 100 | - | 3 | - | 16 | 48 | - | 107 | |
| 65 | 65 | 220 | 180 | 145 | 120 | - | 3 | - | 18 | 48 | - | 142 | |
| 80 | 80 | 250 | 195 | 160 | 135 | - | 3 | - | 20 | 88 | - | 152 | |
| 100 | 100 | 280 | 215 | 180 | 155 | - | 3 | - | 20 | 88 | - | 178 | |
| 125 | 125 | 320 | 245 | 210 | 185 | - | 3 | - | 22 | 88 | - | 252 | |
| 150 | 150 | 360 | 280 | 240 | 210 | - | 3 | - | 24 | 8-23 | - | 272 | |
| 200 | 200 | 400 | 335 | 295 | 265 | - | 3 | - | 26 | 12-23 | - | 342 | |
| 2.5 | 25 | 25 | 150 | 115 | 85 | 65 | - | 2 | - | 16 | 44 | - | 75 |
| 32 | 32 | 165 | 135 | 100 | 78 | - | 2 | - | 18 | 48 | - | 85 | |
| 40 | 40 | 180 | 145 | 110 | 85 | - | 3 | - | 18 | 48 | - | 95 | |
| 50 | 50 | 200 | 160 | 125 | 100 | - | 3 | - | 20 | 48 | - | 107 | |
| 65 | 65 | 220 | 180 | 145 | 120 | - | 3 | - | 22 | 88 | - | 142 | |
| 80 | 80 | 250 | 195 | 160 | 135 | - | 3 | - | 24 | 88 | - | 152 | |
| 100 | 100 | 280 | 230 | 190 | 160 | - | 3 | - | 28 | 8-23 | - | 178 | |
| 125 | 125 | 320 | 270 | 220 | 188 | - | 3 | - | 30 | 8-25 | - | 252 | |
| 150 | 150 | 360 | 300 | 250 | 218 | - | 3 | - | 34 | 8-25 | - | 272 | |
| 200 | 200 | 400 | 360 | 310 | 278 | - | 3 | - | 34 | 12-25 | - | 342 | |
| 4.0 | 25 | 25 | 150 | 115 | 85 | 65 | 58 | 2 | 4 | 16 | 44 | - | 75 |
| 32 | 32 | 180 | 135 | 100 | 78 | 66 | 2 | 4 | 18 | 48 | - | 107 | |
| 40 | 40 | 200 | 145 | 110 | 85 | 76 | 3 | 4 | 18 | 48 | - | 95 | |
| 50 | 50 | 220 | 160 | 125 | 100 | 88 | 3 | 4 | 20 | 48 | - | 107 | |
| 65 | 65 | 250 | 180 | 145 | 120 | 110 | 3 | 4 | 22 | 88 | - | 142 | |
| 80 | 80 | 280 | 195 | 160 | 135 | 121 | 3 | 4 | 22 | 88 | - | 152 | |
| 100 | 100 | 320 | 230 | 190 | 160 | 150 | 3 | 4.5 | 24 | 8-23 | - | 178 | |
| 125 | 125 | 400 | 270 | 220 | 188 | 176 | 3 | 4.5 | 28 | 8-25 | - | 252 | |
| 150 | 150 | 400 | 300 | 250 | 218 | 204 | 3 | 4.5 | 30 | 8-25 | - | 272 | |
| 200 | 200 | 502 | 375 | 320 | 282 | 260 | 3 | 4.5 | 38 | 12-30 | - | 342 | |
| PN(Mpa) | 0.6 | 1.0 | 1.6 | 2.5 | 4.0 |
| DN(mm) | 40-600 | 40-600 | 40-600 | 40-600 | 40-600 |
| Sealing test pressure(Mpa) | 0.66 | 1.1 | 1.76 | 2.75 | 4.4 |
| Body test pressure(Mpa) | 0.9 | 1.5 | 2.4 | 3.75 | 6.0 |
| Working temperature(ºC) | -29~300,-29~425,-29~540 | ||||
| Medium | Liquids like seawater, sewage, acid and alkali or slurry, steam, gas, oil, mud, ash etc. | ||||
| Operation | Handwheel, electric, pneumatic | ||||
| Connection | Flanged, wafer | ||||
| Installation | Vertical and horizontal | ||||
Q:What is the advantage of the top-entry design?
The top-entry design allows for in-line servicing, meaning internal parts can be accessed and replaced without having to remove the valve from the pipeline, significantly reducing maintenance time.
Q:Is this valve suitable for high-demand or critical applications?
Yes, the valve features firesafe design, double block and bleed (DBB) functionality, and self-relieving seats, making it ideal for critical and high-demand applications.
Q:How does the gear-operated mechanism benefit this valve?
The gear-operated mechanism enables precise and easy control of fluid flow, making it suitable for high-pressure systems where consistent operation is essential.
The top inlet gear operated ear shaft ball valve with flange connection has a sturdy design, easy maintenance, and safe fluid control, making it an ideal choice for demanding pipeline systems. The top entrance structure simplifies maintenance, while the gear operating mechanism ensures smooth operation in high-pressure environments. We provide professional pre-sales consultation and after-sales support to ensure that you choose the perfect solution for your specific application. We are committed to providing high-quality products and excellent customer service, ensuring that every step from selection to operation satisfies you.
