Pneumatic Flanged V notch Segment Control Ball Valve for Pulp and Paper industry
FREE-VALVE Pneumatic Flanged V notch Segment Control Ball Valves are quarter-turn trunnion-mounted control valve mainly recommended for control the flow of fluid in the pipeline system.Segmented ball inside the valve is not a complete sphere,but rather a contoured v-notch segment in the ball.
FREE-VALVE Pneumatic Flanged V notch Segment Control Ball Valves are quarter-turn trunnion-mounted control valve mainly recommended for control the flow of fluid in the pipeline system.Segmented ball inside the valve is not a complete sphere,but rather a contoured v-notch segment in the ball. The v-ball provides strong shear force to cut off the medium that is kind of consistently sticky or containing particles,and process an inherent equal percentage flow characteristic,this design allows for the valve to have a high capacity, tight sealing, non-clogging,control and on-off capability.
Features
- One piece body increases rigidity,reduces leakage pathsand eliminates possible leak paths ensuring reliable valve operation.
- Nearly equal percentage flow characteristic.
- High-performance coating technology is applied to the internal surfaces of the valve ball to ensure long life and corrosion resistance.
- The valve with top and bottom bearingssleeve reduces operational torque.
- Cutting action between the V-ball and the seats enabling the fluid to pass smoothly without obstructions.
- Interchangeable soft seats and metal seats to meet various condition applications.Easy to remove cap design simplifiesand seat can be changed for repairing kits.
- Splined stem connectionwith segment ball is provided efficient torque transmission and precise control.
- Flanged segment ball valves are available in metal seats for the abrasive services with STL overlays.
Technical Specification
1) Size Range: DN25~DN600
2) Nominal size: Class 150 ~Class600
3) Applicable Temperature: 0~350℃
4) Connection Type: Flange
5) Flow characteristic:Equal percentage
6) Pressure test:GB/T13927, API598
7) Valve body : GB/T12224,ASME B16.34
8) Operating Type: Pneumatic,Electric
9) Model:FRQV640Y,FRQV640F
Main outline and connection dimensions
| DN | PN | L | D | D1 | D2 | D3 | n-∅d |
| DN25 | PN10 | 102 | 115 | 85 | 68 | 38 | 4-Ø14 |
| DN32 | PN10 | 102 | 140 | 100 | 78 | 42 | 4-Ø18 |
| DN40 | PN10 | 114 | 150 | 110 | 88 | 50 | 4-Ø18 |
| DN50 | PN10 | 124 | 165 | 125 | 102 | 60 | 4-Ø18 |
| DN65 | PN10 | 145 | 185 | 145 | 122 | 80 | 4-Ø18 |
| DN80 | PN10 | 165 | 200 | 160 | 138 | 99 | 8-Ø18 |
| DN100 | PN10 | 194 | 220 | 180 | 158 | 118 | 8-Ø18 |
| DN125 | PN10 | 213 | 250 | 210 | 188 | 138 | 8-Ø18 |
| DN150 | PN10 | 229 | 285 | 240 | 212 | 167 | 8-Ø22 |
| DN200 | PN10 | 243 | 340 | 295 | 268 | 210 | 8-Ø22 |
| DN250 | PN10 | 297 | 395 | 350 | 320 | 264 | 12-Ø22 |
| DN300 | PN10 | 338 | 445 | 400 | 370 | 310 | 12-Ø22 |
| DN350 | PN10 | 400 | 505 | 460 | 430 | 365 | 16-Ø22 |
| DN400 | PN10 | 400 | 565 | 515 | 482 | 410 | 16-Ø26 |
| DN450 | PN10 | 520 | 615 | 565 | 532 | 460 | 20-Ø26 |
| DN500 | PN10 | 600 | 670 | 620 | 585 | 516 | 20-Ø26 |
| DN600 | PN10 | 680 | 780 | 725 | 685 | 620 | 20-Ø30 |
Rated Cv value
| Size | Cv | Size | Cv |
| DN20 | 20 | DN150 | 1130 |
| DN25 | 27 | DN200 | 1860 |
| DN32 | 47 | DN250 | 2900 |
| DN40 | 70 | DN300 | 4320 |
| DN50 | 135 | DN350 | 6640 |
| DN65 | 210 | DN400 | 8000 |
| DN80 | 390 | DN450 | 10000 |
| DN100 | 560 | DN500 | 12200 |
| DN125 | 790 | DN600 | 17270 |
Application
FREE-VALVE Pneumatic Flanged V notch Segment Control Ball Valve is an economical high performance control valve designed for high capacity and wide rangeability control applications in various industries such as the chemical and petrochemical industry, pulp and paper industry, refinery, pharmaceutical, oil & gas, sewage treatment plants, food industries, and more.
