Three piece flange ball valves and gate valves belong to the same type of valve, with the difference being that their closing part is a sphere that rotates around the centerline of the valve body to achieve opening and closing. Ball valves are mainly used to cut off, distribute, and change the flow direction of media in pipelines.
● Reasonable Design: The structure is compact, effectively reducing installation space, allowing the valve to be flexibly applied to various pipeline systems.
● Corrosion Resistance: Made of high-quality materials, the valve ensures good wear resistance and extends its service life.
● Flanged Connection: This connection method makes the valve and pipeline firmly connected, less prone to leakage, and improves the sealing and safety of the system.
| Serial number | Part Name | Material | |
| - | - | Stainless steel | carbon steel |
| 1 | bolt | Stainless steel SS304 | carbon steel |
| 2 | spring washer | Stainless steel SS304 | Stainless steel SS304 |
| 3 | nut | Stainless steel SS304 | carbon steel |
| 4 | cap | Stainless steel CF8/CF8M | Carbon SteelWCB |
| 5 | valve body | Stainless steel CF8/CF8M | Carbon SteelWCB |
| 6 | sphere | Stainless steel CF8 | Stainless steel CF8 |
| 7 | sealing ring | Polytetrafluoroethylene/PTFE | PolytetrafluoroethylenePTFE |
| 8 | Stem | Stainless steel SS316 | Stainless steel SS304 |
| 9 | filler | PolytetrafluoroethylenePTFE | PolytetrafluoroethylenePTFE |
| 10 | Compression nut | Stainless steel SS304 | Stainless steel SS304 |
| 11 | spring washer | Stainless steel SS304 | Stainless steel SS304 |
| 12 | nut | Stainless steel SS304 | Stainless steel SS304 |
| 13 | handle | Stainless steel SS304 | Stainless steel SS304 |
| SIZE | 1/2″ | 3/4″ | 1" | 1 1/4″ | 1 1/2″ | 2" | 2 1/2″ | 3″ | 4″ |
| d | 15 | 20 | 25 | 32 | 38 | 50 | 65 | 76 | 100 |
| L | 130 | 150 | 160 | 180 | 200 | 230 | 290 | 310 | 350 |
| D | 95 | 105 | 115 | 135 | 145 | 160 | 180 | 195 | 230 |
| D1 | 65 | 75 | 85 | 100 | 110 | 125 | 145 | 160 | 190 |
| D2 | 45 | 55 | 65 | 78 | 85 | 100 | 120 | 135 | 160 |
| b | 14 | 16 | 16 | 18 | 18 | 20 | 22 | 24 | 24 |
| f | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 3 |
| H | 75 | 95 | 90 | 110 | 130 | 140 | 140 | 180 | 250 |
| W | 130 | 140 | 140 | 170 | 200 | 220 | 220 | 350 | 550 |
| n-do | 4-14 | 4-14 | 4-14 | 4-18 | 4-18 | 8-18 | 8-18 | 8-18 | 8-22 |
| Nominal Size | 1/2"-4" |
| Nominal pressure | 1.6Mpa-25Mpa |
| Temperature | -20ºC~220ºC |
| Medium | water, oil, gas and some corrosive mediun |
| Connection type | Flange, butt welded, threaded |
| Operation | manual, electric, pneumatic |
Q1:What is the benefit of the floating ball design?
The floating ball design allows for smooth, efficient flow control as the ball moves with the flow of the fluid, ensuring minimal resistance and optimal performance.
Q2:What is the valve's temperature and pressure range?
The valve can handle temperatures from -40ºC to 300ºC (hard seal) or -40ºC to 180ºC (soft seal) and is rated for nominal pressures from PN1.6 to 6.4 MPa.
Our three-piece flanged welded ball valve is made of high-quality materials, ensuring the durability and reliability of the product. Its unique design makes installation and maintenance exceptionally easy, greatly improving work efficiency. Ball valves have excellent sealing performance, effectively preventing leakage and ensuring safe and stable operation of the system. Finally, we provide comprehensive after-sales service to ensure that customers receive timely technical support and solutions during use.
