Features
SDN 700 series butt-weld type high performance butterfly valve is especially designed to be applied to such fluid conditions as igh pressure, high temperature and high velocity.
Itegrally top flange provide direct mounting of manual Worm gear,pneumatic and electric actuators.
Spherical disc produces smooth rotation
the disc is produced by full spherical machining
Torque is reduce, sealing is improved and reduced friction.
Spherical sealing structure.
the Spherical machined inner surface of the seat can touch the disc simultaneously enabling tight shut-off.In addition, the valves can seal against reverse flow as well as direct flow, and cope with directional changes.
Eccetric structure
The axis of disc rotation is Eccetric to the metal seat.When the disc rotates,it unseats at a small turning angle by its cam effect.This prevents seat abrasion and provides perfect seal for a long period.
Specification
-200mm(8")~1500A(60")
Body Style
One-piece Butt Weld Type
Valve Face to Face
ISO 5752
Temperature Range
Max,560 centigrade
Shutt-off Pressure
DIN PN16/PN25
ANSI class 150/300
Leakage Class
Bi-Directions
MSS SP61
ANSI B16. 104FCI-70 Class V
Application
Destrict heating trunkline,steam line and industrial application.
Butterfly valve 700 series
No comments:
Post a Comment