High Performance Butterfly Valve,Double offset Buterfly Valves,Double eccentric Buterfly Valves
FREE-Valve’s HighPerformanceButterfly Valvesare double offset structure and can be used for shut-off and throttling control.
Itis divided into hardto hardsealingorhard to soft sealingwith two structuresaccording to sealing surface material of the disc and seat.The butterflyvalvecanrealize rotary under the condition of low torqueby the resilient-seateddesign,which means a longer service life ,so as to cost-effective of choosing actuator.
Features
1. The valveseatmaterialisdivided into metal seat and soft seat,which makes the valve suitable for liquid or gas service with manyapplications.
- seat can bereplaced by loosening the seat ring bolts, saving the cost of the valve.
- resilient-seateddesign ensures minimal seat wear and double offset disc design provides excellent throttling capabilities,ithascharacteristic ofsuper long usage life, frictionless closureetc.
- Blowout proof shaft designand the application of self lubricated bearings.
- Preventing the discfrom closingunderover/under travelby adjusting mechanical stopper.
Technical specifications
1) Size Range：NPS2~NPS48,DN50~DN1200.
2) Pressure Range:Class 150~Class 300,PN10~PN40.
3)Body material:Carbonsteelor stainless steel
4) Seatmaterial:PTFEandgraphite PTFE,metal
5) Working temperature≤250°C
6) Connection method：Flange,wafer.
7) Operating method：Worm gear,electric,pneumatic .
8) Pressure test:GB/T13927; API598.
9)Face to Face: GB/T12221; API609.
Applicable
FREE-Valve’s HighPerformanceButterfly Valvesareusedinchemical, petroleum, natural gas, refining, power plants,water distribution, water treatment, pre-treated ,waste water, industry and pressure management and the role of regulating valve.
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