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manual flange fluorine lined diaphragm valve

FREE-VALVE’s manual fluorine lined 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

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FREE-VALVE manual fluorine lined 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.

Features:

  1. The diaphragmof using FEP/FPA/PTFE and rubber composite, suitable for variety of corrosive media.
  2. 100% gas seal can be achieved to ensure no leakage in outlet port.
  3. No direct contact between metal parts and medium
  4. Bi-directional and full flowing path can reduce pressure drop, weaken abrasion and prolong the serviceworking

Technical Specification

1) Size Range: DN25~DN400

2) Pressure Range: Class 150 /PN10 /PN16

3) Connection Type: Flange

4) Lining Material:PTFE , PFA , FEP

5) Body material:WCB, CF8 ,CF8M

6) Pressure test:GB/T13927, API598

7) Face to Face: GB/T12221, ASME B16.10

8) Operating Type: Manual Handwheel

 

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, hydrochloric acid, 30 percent sulfuric acid, 50 percent hydrofluoric 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 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

 

 

Note:in the suitable media column, “W” means the body without lined,“J” means the body lined hard rubber,“F46” means the body lined fluorine plastic,

 

Application

FREE-VALVE  manual fluorine lined 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.

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