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 known for its clever structural design, which uses advanced welding technology to firmly connect the valve body, valve seat, and ball. This design greatly improves the strength and sealing performance of the valve, ensuring stable operation under extreme conditions such as high pressure and high temperature. Due to its excellent performance, fully welded ball valves are widely used in industries such as petroleum, chemical, and natural gas, becoming an important component of these industries.
● Compact Structure: The fully welded integral ball valve adopts an integrated design, reducing the number of connecting components and making the structure more compact, saving space. This design not only simplifies installation and maintenance, but also improves sealing performance.
● Excellent Sealing Performance: Welding connections eliminate common leakage problems in traditional connections, ensuring stable flow of media inside the pipeline.
● Strong Corrosion Resistance: The main body of ball valves is usually made of corrosion-resistant materials such as stainless steel, which effectively resists the erosion of various corrosive media and extends their 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 valve has several significant advantages. Firstly, its sturdy 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, improving safety and overall performance. Finally, our commitment to quality and innovation ensures that our valves comply with the latest industry standards, maximizing your investment value.
