Double Eccentric Resilient Seal Butterfly Valve

Product Description

Double eccentric double flange NBR/EPDM rubber soft seal butterfly valve replaceable disc sealing ring used for water or seawater with lever/worm gear box/electric actuator. DN50-DN4500, PN6/10/16/25, available material cast iron, ductile iron GGG40/GGG50/WCB/SS, used for water. Product features 1. To DIN3352 or API609 2. Face to face per DIN3202/ISO5752 3. Flange ends dimension DIN2501/ANSI B 16.5/ANSI B 16.47 4. Final inspection tests to API598/DIN3230. Materials 1. Body and disc: Cast iron, ductile iron GGG40/GGG50/WCB/SS 2. Shafts: Stainless steel 2cr13 3. Replaceable NBR/EPDM rubber disc sealing ring. 4. Seat face welded with copper alloy, micro finished. Corrosion protection 1. Inside and outside epoxy coating 2. Applicable temperature: -20 -100 different material for different work temperature 3. Applicable medium: Water, oil, gas and other causticity medium (different material for different medium) 1) Brief Flange type soft seal butterfly valve is our new product which design and manufacture according to the newest standard of DIN3354&API609, new structure and better performance. It can cut-off or control the flow rate and which can be used in metallurgy, chemical, electrical, municipal engineering, pipeline engineering etc. Appropriate medium: Water, oil, air and so on. 2) Characteristic 1. Beautiful design, light weight, low torque 2. The sealing ring can be replaced without dismantling the disc. 3. Double eccentric disc and body structure, easy operating; 4. Sliding fit between seal and seat, lower abrasion and longer lifetime; 5. 90° Turning shaft design, which can control the disc at any position between 0° ~90° ; 6. Besides worm gear and level, electrical actuator, pneumatic actuator, hydraulic actuator can be used either; 7. Better flow characteristics, better performance.

Double Eccentric Resilient Seal Butterfly Valve