Flange fully welded ball valve specification.Pressure class: Class150-2,500, PN 10-420 Diameter range: DN 15~ 1400 (1/2"~56") ...
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The fully welded ball valve is renowned for its ingenious structural design, which employs advanced welding techniques to securely connect the valve body, seat, and ball. This design substantially improves the valve's strength and sealing performance, ensuring stable operation under extreme conditions such as high pressure and high temperature. Owing to its exceptional performance, the fully welded ball valve is widely used in industries such as oil, chemical, and natural gas, becoming an essential component in these sectors.
● Compact Structure: The fully welded integral ball valve features an integrated design that reduces the number of connection components, making the structure more compact and space-efficient. This design not only simplifies installation and maintenance but also enhances sealing performance.
● Excellent Sealing Performance: Welded connections eliminate common leakage issues found in traditional connections, ensuring a stable flow of the medium within the pipeline.
● Strong Corrosion Resistance: The main body of the ball valve is typically made from corrosion-resistant materials such as stainless steel, effectively resisting the erosion of various corrosive media and extending its service life.
| No. | Part Name | Part Material |
| 1-1. | Welding end | Steel St 37.0 |
| 1-2. | Female end | Steel St 52/St 37.0 |
| 1-3. | Flange | Steel R St 37-2 |
| 2. | Belleville spring | 65 Mn |
| 3. | Body | Steel St 37.0 |
| 4. | Ball | CF8 |
| 5. | Seat | PTFE,20% C |
| 6. | Back-up ring | 2Cr13 |
| 7. | Friction packing | PTFE,20% C |
| 8. | O-ring | PTFE |
| 9. | O-ring | EPDM |
| 10. | Gasket | St 37.0 |
| 11. | Pin | Steel |
| 12. | Stem nut | Steel |
| 13. | Back-up ring | PTFE,20% C |
| 14. | Stem guide | Steel St 52 |
| 15. | Stem | 2Cr13 |
| 16. | Handle | Steel |
Main Dimensions
| Size | A | B | L | D | D1 | D2 | |
| in | mm | mm | mm | mm | mm | mm | mm |
| 1/2 | 15 | 129 | 64 | 210 | 15 | 21.3 | 42 |
| 3/4 | 20 | 129 | 64 | 230 | 15 | 26.7 | 42 |
| 1 | 25 | 159 | 76 | 230 | 20 | 33.4 | 48 |
| 1 1/4 | 32 | 159 | 85 | 260 | 25 | 42.2 | 60 |
| 1 1/2 | 40 | 230 | 95 | 300 | 32 | 48.3 | 76 |
| 2 | 50 | 230 | 100 | 300 | 40 | 60.3 | 89 |
| 2 1/2 | 65 | 300 | 159 | 300 | 50 | 76.1 | 114 |
| 3 | 80 | 300 | 170 | 300 | 65 | 88.9 | 140 |
| 4 | 100 | 450 | 192 | 325 | 80 | 114.3 | 185 |
| 5 | 125 | 450 | 208 | 325 | 100 | 141.3 | 216 |
| 6 | 150 | 450 | 241 | 350 | 125 | 168.3 | 219 |
| Pressure Rating | 150-600lb,1.6-4.0 Mpa |
| Connecting Size | 1/2"-40",DN15-1000mm |
| Connecting type | Thread,Welding,Flange,etc |
| Applicable Temp(ºC) | -19-150 |
| Applicable Medium | Water,Oil,Natural gas,etc |
| Operating Mode | Lever,Gear,Electric,Pneumatic,etc |
Q1:What is the main suitable of this valve?
This product is especially suitable for steel, aluminum, fiber, small solid particles, pulp, coal ash, petroleum gas and other media.
Q2:What mechanical principle is used?
The mechanical principle of the fully welded ball valve lies in its sophisticated design, which ensures reliable fluid control. The valve features a spherical disc, or ball, with a bore that can be rotated 90 degrees between open and closed positions. When the bore is aligned with the pipeline, fluid flows freely through the valve.
Our fully welded ball valves offer several significant advantages. Firstly, their robust structure ensures long-term durability and reliability, capable of withstanding the harshest industrial environments. Secondly, the use of seamless welding technology effectively eliminates potential leakage points, enhancing safety and overall performance. Lastly, our commitment to quality and innovation ensures that our valves meet the latest industry standards, maximizing your investment value.
