FRD71F46
Acid
Manual
Wafer
Centre Sealing
Force Sealed
Normal
Low Pressure (Pn<1.6mpa)
Normal Temperature (-40°C<T<120°C)
Soft Sealed
Casting
GB/T13927,API598
Industrial Usage
Colors Can Be Customized
Authorized by The Chinese Customs
According to Customer on-Site Requirements
Ss420,SS304,17-4pH
FREE-VALVE
Wooden Box
DN50~DN600
China
8481809000
Product Description
FREE-VALVE fluorine lined butterfly valve adopts 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 .


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.
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 |

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 |
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 |
FREE-VALVE fluorine lined butterfly valve 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.

