The Keystone CompoSeal is a resilient seated Butterfly Valve. The Keystone CompoSeal has a valve body and disc made out of high engineered composite material that provides excellent internal and external chemical resistance.
Features
Patented wafer style body and disc in high engineered composite results in excellent internal and external chemical resistance
Light weight construction results in lower cost and simplified installation
No extra pipe support needed when installed in plastic or GRP piping
Disc in high engineered composite material provides excellent corrosion resistance
All fasteners in stainless steel 316 as standard
Bubble tight shut-off in both directions, in accordance with EN 12266-1 leakrate A
Pressure range up to PN 16 at elevated temperature
Valve can be used in high line velocity applications up to 40 ft/sec
Spindle and primary Valve seals are not influenced by the flange bolting force or pipe flange type
High Cv value
No need for flange gaskets
Primary stem sealing exceeds the pressure rating of the valve and prevents leakage through the shaft area to atmosphere
A secondary (shaft) sealing provides back-up safety
Four integrated locating holes ease installation and centering between the pipe flanges
Actuator flange acc. ISO 5211
Sustainable production philosophy as the valve materials are 100% recyclable
Use of composite material eliminates the need for machining and painting
Composite hand lever available
Available water approvals: KIWA, ACS, WRAS, NSF, BELGAQUA
Certified and approved according Det Norske Veritas (DNV)
