Check valves are utilized to allow forward flow and prevent reverse flow. This is achieved by means of a linear or rotary (angular) motion of a closure member which is kept open by the flowing fluid.
When the flow is reduced towards zero, or reversed, the closure member is moved against its seat by forces due to gravity, supplementary springs, and back pressure.
The self-acting design of the check valves, considering both dynamic as well as static response (flow configuration) must be studied in accordance to the applicable operating conditions.
Flanged, Welded, Threaded Ends
Bolted, Wafer, Lug
Swing or Piston or Needle or Pla
½" - 28"
150# - 4500#
Conventional or Reduced
Carbon Steel, Stainless Steel Incoloy, Bronze Titanium Exotic
Forged or Cast
Metal or Resilient
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