Ceramic Ball Valve with V Bore Ball for Precision control systems
FREE-VALVE pneumatic ceramic lined V Bore control ball valves are that V-port ceramic ball provides precise throttling control in the valve’s opening and closing, with more accurate and flexible adjusting performance.Besides,the self-lubricating capability of engineering ceramic ensures the good sealing after polishing,during the opening and closing process,the V shaped channel of the ball and ceramic seat have a wedge-shaped shearing effect,which can cut off fibers and particles in media during the opening and closing process to prevent the ball core from sticking.
FREE-VALVE pneumatic ceramic lined V Bore control ball valves are that V-port ceramic ball provides precise throttling control in the valve’s opening and closing, with more accurate and flexible adjusting performance.Besides,the self-lubricating capability of engineering ceramic ensures the good sealing after polishing,during the opening and closing process,the V shaped channel of the ball and ceramic seat have a wedge-shaped shearing effect,which can cut off fibers and particles in media during the opening and closing process to prevent the ball core from sticking.
Features:
- The hardness of the ceramic material can be higher than HRC80.
- Approximate equal percentageflow regulation characteristics and works at small opening.
- The flow adjusting more accurately and flexibly,with large adjustable range,fast adjustment speed,simple maintenance.
- Straight-through design, no flow blocking element in the valve cavity.
- ZrO2 ceramic ball have good self-cleaning property.
Technical Specification
Size Range :DN25~DN 200, NPS1 ~NPS8
Nominal Pressure:1.0MPa,Class150
Flange Standards:ASME B16.5,GB/T9113
Connection type:Flange
Working Temperature ≤200℃
Operating Type: Pneumatic and Electric
Seat material:Engineering ceramic
Ball material:Zirconia ceramic
Pressure test:GB/T13927, API598
Face to Face:GB/T12221, ASME B16.10
Model：FRVQ641TC
Flow coefficient table
| Nominal size | Cv Value | Torque（△p=1.0MPa） | ||||
| O port | V30° | V45° | V60° | N.M | ||
| DN25 | 1” | 18.2 | 5 | 8 | 12 | 15 |
| DN32 | 1-1/4” | 28.5 | 8 | 12 | 18 | 26 |
| DN40 | 1-1/2” | 47 | 13 | 20 | 30 | 35 |
| DN50 | 2” | 73 | 21 | 31 | 46 | 42 |
| DN65 | 2-1/2” | 114 | 32 | 48 | 72 | 64 |
| DN80 | 3” | 181 | 51 | 76 | 115 | 90 |
| DN100 | 4” | 292 | 82 | 123 | 185 | 130 |
| DN125 | 5” | 456 | 128 | 192 | 289 | 220 |
| DN150 | 6” | 712 | 201 | 300 | 452 | 250 |
| DN200 | 8” | 1025 | 289 | 432 | 650 | 490 |
Application
FREE-VALVE pneumatic ceramic lined V Bore control ball valves can serve dual purpose,functioning both as an On/Off Valve and as a precise equal percentage throttling control valve,the valves are suitable for water,steam,oil,lime slurry,liquid chlorine,nitric acid,acetic acid,oxidizing substances,urea and other medium.
