Plug valves are quarter turn operated and can be Lubricated or Non-Lubricated.
Lubricant is injected under pressure between the plug face and body seat to reduce friction, provides port sealing and allows sealant jacking action to unseat the plug in tapered designs.
The Non-lubricated type shows mechanical design characteristics capable to reduce friction between the plug face and body seat during operation by lifting the plug or, in the split-body type valve, by lifting the shutter from the seat before the rotation. Alternatively, PTFE linings or sleeves are used. Both types are available in parallel and tapered versions.
Sleeved Plug valves are usually of tapered design and incorporates a polymeric sleeve in the body, usually in PTFE.
Lubricated or Non-Lubricated
Round Opening Regular Venturi Short
Tapered or Parallel
½" - 28"
150# - 600#
Conventional or Reduced
Cast Iron, Carbon Steel, Stainless Steel
Metal or Resilient
PTFE - Graphite
API 598 - API 6D
Wrench, Gear, Actuated
All materials are in conformity with NACE MR 01-75
Stabilimenti di produzione di valvole a sfera
Via per Gallarate, 50
21010 Besnate (VA)
Stabilimento di produzione di Gate, Globe
and Check Valves
Via A. Mauri
20900 Monza (MB)
CONTROLFLUID - KOREA