Back To Top
Keystone CompoSeal Butterfly Valves
Keystone CompoSeal resilient seated butterfly valves feature a valve body and disc in highly engineered composite material providing excellent internal and external chemical resistance whilst being lightweight and simple to install.
Keystone CompoSeal Butterfly Valves

Specs

Material
Composition Fiber
Operating Temperature
Less than 150 C
Pressure Class
PN
Process Connection Type
PN16
Seat/Seal Type
Resilient
Shutoff Class
Zero Leakage
Valve Size
NPS 10 / DN 250, NPS 1-1/2 / DN 40, NPS 12 / DN 300, NPS 2-1/2 / DN 65, NPS 3 / DN 80, NPS 4 / DN 100, NPS 6 / DN 150, NPS 8 / DN 200
Valve Size Standard
DN
Valve Type
Butterfly
Seat/Seal Type
Resilient
Shutoff Class
Zero Leakage
Valve Size
NPS 12 / DN 300, NPS 1-1/2 / DN 40, NPS 10 / DN 250, NPS 6 / DN 150, NPS 8 / DN 200, NPS 4 / DN 100, NPS 3 / DN 80, NPS 2-1/2 / DN 65
Valve Size Standard
DN
Valve Type
Butterfly

Features

  • 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 12 m/sec.
  • Spindle and primary valve seals are not influenced by the flange bolting force or pipe flange type.
  • High Kv (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.

Education

Interesting in attending a training class?

Visit Course Listing!