18 Parts Specification Body PTFE Diaphragm Inserted Metal for PTFE Diaphragm PVDF Cushion Cover Remark EL Spec. EL-PVDF EL-PTFE Special Alloy Equipped c/w Body/Bonnet Liner and Conical Spring Washer C/A Spec. PVDF PTFE Special Alloy Equipped c/w Body/Bonnet Liner and Conical Spring Washer Note : Please contact us for further information. PVDF Cushion Cover(Gas Barrier) (PVDF) ※PVDF Cushion cover is installed between diaphragm and EPDM cushion. PTFE Diaphragm (EL-PTFE) Body (EL-PVDF) U-Bolt (for reinforcement) ※Equipped for 65mm and above. Body/Bonnet Liner (for reinforcement) Inserted Metal for Diaphragm (High corrosion resistant special alloy) EL-PVDF/No blister is observed PVDF/Blister is observed As a solution for blister or crack problem on the surface of the valve body or the diaphragm in the severe working conditions especially for Chlor/Brine application, we prepared a special specification “EL-Specification”. The “EL-Specification”, which has EL-PVDF body and EL-PTFE diaphragm, provides excellent chemical resistance and longer product life. According to the result of our field tests, it is confirmed that the “EL-Specification” has 2 to 5 times longer product life than standard “C/A Specification” in the same working condition. �B EL-Specification Feature: To prevent the generation of blister and crack by applying special material. Medium: High temperature brine, Sodium hypochlorite, Hydrofluoric acid and so on. Countermeasure:for blister, crack, peeling-off and so on. Parts:EL-PVDF(Body) and EL-PTFE(Diaphragm) Target: Chlor/Alkali industry, pulp & paper industry, steel industry and so on. Reference: Many factories especially in Electrolysis plants in world wide. FEATURES DIAPHRAGM VALVE/Chlor-Alkali Specification & EL Specification ■ Contents of EL-Specification ■ Field Test Result Electrolysis Plant/ Return Brine 88℃, 0.3MPa, after 5years service 〔 〕 15mm (1/2inch) - 100mm (4inch) ■ Size ■ Comparison table between EL-Specification and Chlor/Alkali specification Cushion(EPDM) PTFE Diaphragm Diaphragm Inserted Metal (Stainless Steel 304) PVDF Cushion (Gas Barrier) Cover Diaphragm Inserted Metal (High corrosion resistant special alloy) Cushion(EPDM) PTFE Diaphragm PVDF Cushion (Gas Barrier) Cover �@ PVDF Cushion Cover (Gas Barrier)Specification for corrosive gas �A Chlor-Alkali Specification for Cl2 gas DIAPHRAGM BALL VALVE VALVE BUTTERFLY VALVE SWING CHECK VALVE BALL CHECK, BALL FOOT GATE VALVE GAUGE VALVE STOP VALVE VALVE AUTOMATIC WATER FEEDING VALVE ROTARY ANGLE ALFALFA VALVE VALVE CONSTANT FLOW NEEDLE VALVE VALVE Y-SEDIMENT STRAINER AIR RELEASE VALVE WAFER CHECK VALVE