Keystone Model CompoSeal Butterfly Valves

Resilient seated Butterfly valves with valve body and disc in high engineered composite material providing excellent internal and external chemical resistance

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Description

Specifications

Certifications
ABS, PED
End Connection
Wafer
Application
Filtration, Cruise Ship, Air Circulation
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 12 / DN 300, NPS 2-1/2 / DN 65, NPS 3 / DN 80, NPS 1-1/2 / DN 40, NPS 6 / DN 150, NPS 4 / DN 100, NPS 8 / DN 200, NPS 10 / DN 250
Valve Size Standard
DN
Valve Type
Butterfly
Media
Water, Air

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 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.

Brand

Keystone

Long Lasting Butterfly Valves with a Sturdy Reputation

Emerson’s Keystone offer a complete range of butterfly valves from general purpose through to heavy duty and high performance models. With a tradition of more than 70 years, Keystone built its reputation on providing industrial process butterfly valves known for their reliability, long service life, and reduced operating costs. Independent, third-party life-cycle testing has shown that Keystone resilient-seated butterfly valves last 2.5 times longer than competitors' butterfly valves.  
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