Fully Fluorine lined PTFE butterfly valve
FREE-VALVE PTFE fluorine Lined PTFE Butterfly Valves adopt the central line fluorine lined structure,the valve body and disc are lined with anti-corrosive materials so as to effectively avoid the corrosion of the valve by strong corrosive media,so the valve has both the common butterfly valve mechanical strength, and also can play strong resistance to chemical medium properties .
FREE-VALVE PTFE fluorine Lined PTFE Butterfly Valves adopt the central line fluorine lined structure,the valve body and disc are lined with anti-corrosive materials so as to effectively avoid the corrosion of the valve by strong corrosive media,so the valve has both the common butterfly valve mechanical strength, and also can play strong resistance to chemical medium properties .
Features
1.The valve positioner is used, the proportional adjustment is achieved, flow characteristic of the valve has approximately equal percentage.
2.Lined butterfly valve has good sealing performance and is bi-directional flow for zero leakage.
3. Broad lined materials of body and trim for a variety of medium service,the valve is an ideal solution to control and shut-off applications.
4.The valve can be equipped with various types of electric actuators.
5.It has small torque and easy to operate,it can be installed in any direction.
Technical Specification
| 1 | Size Range | NPS2~NPS24,DN50~DN600 |
| 2 | Nominal pressure | PN10/PN16/Class150 |
| 3 | Service Temperature | -10ºC~+180ºC |
| 4 | Connection Type | Wafer,lug,Flange |
| 5 | Lining Material | PTFE , PFA , FEP |
| 6 | Disc | Stainless steel/carbon steel+PTFE , PFA , FEP |
| 7 | Body | WCB, CF8 ,CF8M |
| 8 | Pressure test | GB/T13927, API598 |
| 9 | Face to Face | GB/T12221, ASME B16.10 |
| 10 | Operation Method | Manual lever , Worm gear ,Electric ,Pneumatic |
Service Temperature and suitable media of body lining material
| Lining material | Service temperature,°C | Application medium |
| NR | -10°C~+85°C | exclusive of strong oxidants:fluorosilicic acid, phenolic acid, 30 percent sulfuric acid, 80 percent phosphoric acid, alkali, salt, gold plating solution, sodium hydroxide, potassium hydroxide, neutral salt aqueous solution, 10 percent sodium hypochlorite, ammonia, most alcohols, organic acids and aldehydes,ect |
| EPDM | ≤120°C | It has the similar acid and alkaline properties of natural glue, and it is very good for low pressure steam, hot water and cold water. |
| PTFE(F4) | ≤180°C | Strong acid, strong base, strong oxidant, organic solvent, etc |
| FEP(F46) | ≤120°C | Any organic solvents or reagents, xi or concentrated inorganic acids, bases, ketones, aromatics, chlorinated hydrocarbons, etc |
| PFA | ≤180°C | Strong acid,strong alkali,Strong oxidant, organic solvent, etc |
Main outline and connection dimensions
| DN | PN | L | D | D1 | D2 | n-∅d |
| 40 | PN10 | 33 | 145 | 110 | 85 | 4-∅18 |
| 50 | PN10 | 43 | 165 | 125 | 100 | 4-∅18 |
| 65 | PN10 | 46 | 185 | 145 | 120 | 4-∅18 |
| 80 | PN10 | 46 | 200 | 160 | 140 | 8-∅18 |
| 100 | PN10 | 52 | 220 | 180 | 155 | 8-∅18 |
| 125 | PN10 | 56 | 250 | 210 | 185 | 8-∅18 |
| 150 | PN10 | 56 | 285 | 240 | 210 | 8-∅22 |
| 200 | PN10 | 60 | 340 | 295 | 265 | 8-∅22 |
| 250 | PN10 | 68 | 395 | 350 | 320 | 12-∅22 |
| 300 | PN10 | 78 | 445 | 400 | 370 | 12-∅22 |
| 350 | PN10 | 78 | 505 | 460 | 420 | 16-∅22 |
| 400 | PN10 | 102 | 565 | 515 | 475 | 16-∅26 |
| 450 | PN10 | 114 | 615 | 565 | 525 | 20-∅26 |
| 500 | PN10 | 127 | 670 | 620 | 580 | 20-∅26 |
| 600 | PN10 | 154 | 780 | 725 | 690 | 20-∅30 |
| 700 | PN10 | 165 | 895 | 840 | 800 | 24-∅30 |
| 800 | PN10 | 190 | 1015 | 950 | 905 | 24-∅33 |
| 900 | PN10 | 203 | 1115 | 1050 | 1005 | 28-∅33 |
| 1000 | PN10 | 216 | 1230 | 1160 | 1115 | 28-∅36 |
| 1200 | PN10 | 254 | 1455 | 1380 | 1325 | 32-∅39 |
Note: Our company also produces other pressure grade products, flange connection size according to customer requirements according to GB/T9113 or ASME B16.5.
Application
FREE-VALVE fully fluorine Lined PTFE butterfly valves are ideally suited for the stringent performance requirements demanded with isolating and controlling all kinds of acid,alkali,salt and oxidant,reductant,organic solvent and other media.it is widely used in chemical industry,petroleum,medicine,food,paper-making semi-fluid piping and container closure and adjust equipment.
