FRG41F46
Acid
Ordinary Temperature
Manual
Flanged Diaphragm Valve
Cast Iron
Through Way Diaphragm Valve
Ordinary Pressure
Bidirectional
Intelligent Type, Field Bus
Emptying, Drain, Flow Control
DIN
Rubber,F46,PFA,PTFE
Colors Can Be Customized
If There Are No Special Requirements, Mainly Based
Carbon Steel,Stainless Steel,Cast Iron
FREE-VALVE
Wooden Box
DN25~DN400
China
8481809000
Product Description
FREE-VALVE ANSI 150Lb Flanged Fluorine Lined Weir Type Diaphragm valve is a special form of on-off valve, disc is a diaphragm made of corrosion-resistant soft material,the diaphragm separates the bottom body cavity from the top bonnet cavity, so that the stem, metal disc and other parts above the diaphragm are not subject to media corrosion,so fluorine lined diaphragm valve eliminate the packing seal structure, and will not produce media leakage.


- The diaphragm of using FEP/FPA/PTFE and rubber composite, suitable for variety of corrosive media.
- 100% gas seal can be achieved to ensure no leakage in outlet port.
- No direct contact between metal parts and medium slurry.
- Bi-directional and full flowing path can reduce pressure drop, weaken abrasion and prolong the service working life.
1 | Size Range | NPS1~NPS16,DN25~DN400 |
2 | Nominal pressure | Class 150 /PN10/PN16 |
3 | Applicable Temperature | 0~200ºC |
4 | Connection Type | Flange |
5 | Lining Material | PTFE , PFA , FEP |
6 | Diaphragm | EPDM+PFA /FEP |
7 | Pressure test | GB/T13927, API598 |
8 | Face to Face | GB/T12221, ASME B16.10 |
9 | Operating Type | Manual |
Temperature of use and suitable media of body lining material
Lining material | Service temperature,°C | Application medium |
NR | -10°C~+85°C | exclusive of strong oxidants:hydrochloric acid, 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 |

DN | DN | PN | L | D | D1 | n-∅d |
EG41W/J/F46 | DN20 | PN10 | 121 | 105 | 75 | 4-∅14 |
DN25 | 131 | 115 | 85 | 4-∅14 | ||
DN32 | 150 | 140 | 100 | 4-∅18 | ||
DN40 | 163 | 150 | 110 | 4-∅18 | ||
DN50 | 194 | 165 | 125 | 4-∅18 | ||
DN65 | 220 | 185 | 145 | 4-∅18 | ||
DN80 | 258 | 200 | 160 | 8-∅18 | ||
DN100 | 309 | 220 | 180 | 8-∅18 | ||
DN125 | 362 | 250 | 210 | 8-∅18 | ||
DN150 | 412 | 285 | 240 | 8-∅22 | ||
DN200 | 529 | 340 | 295 | 8-∅22 | ||
DN250 | 641 | 395 | 350 | 12-∅22 | ||
DN300 | 757 | 445 | 400 | 12-∅22 | ||
G41FW/J/F46 | DN15 | PN10 | 125 | 95 | 65 | 4-∅14 |
DN20 | 135 | 105 | 75 | 4-∅14 | ||
DN25 | 145 | 115 | 85 | 4-∅14 | ||
DN32 | 160 | 140 | 100 | 4-∅18 | ||
DN40 | 180 | 150 | 110 | 4-∅18 | ||
DN50 | 210 | 165 | 125 | 4-∅18 | ||
DN65 | 250 | 185 | 145 | 4-∅18 | ||
DN80 | 300 | 200 | 160 | 8-∅18 | ||
DN100 | 350 | 220 | 180 | 8-∅18 | ||
DN125 | 400 | 250 | 210 | 8-∅18 | ||
DN150 | 460 | 285 | 240 | 8-∅22 | ||
DN200 | 570 | 340 | 295 | 8-∅22 | ||
DN250 | 680 | 395 | 350 | 12-∅22 | ||
DN300 | 790 | 445 | 400 | 12-∅22 | ||
DN350 | 900 | 505 | 460 | 16-∅22 | ||
DN400 | 1000 | 570 | 515 | 16-∅26 |
FREE-VALVE ANSI 150Lb Flanged Fluorine Lined Weir Type Diaphragm valves are widely used in chemical industry, medicine and other industrial sectors to achieve the cutting of acid, alkali and other corrosive media in the production process.

