Distributor of valves, control valves,
actuated valves and valve accessories

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Figure 86

  • Manufacturer: EMERSON
  • Valve Type: Check Valves - Swing Check / Dual Plate Check / Ball Check / Piston Check / Flap Check / Wafer Check / Non Slam Check
  • Sub-Type: Keystone Check Valves
  • Lightweight, wafer type checkvalve with face-to-face dimensions according ISO 5752, table 5 long
  • High flow capacity. A special shaped disc with a large opening angle results in high Kv values
  • Spring loaded disc for positive shut off
  • Field replaceable O-ring seat
  • Internal travel stop prevents the disc from slamming against the pipe
  • Excellent low pressure shut-off The standard low pressure shut-off is less than 0.1 bar
  • Slam free operation
  • Optional heavy spring for slam free operation in systems with high decelerations
  • Optional light spring for systems with low line velocities
  • Optional adjustable travelstop for system with reduced inner diameter of pipeline


Back flow prevention in pump or multi-pump systems • High slam risk systems up to flow deceleration of 25 m/s2 • Combined low line velocity and low pressure tightness • Vacuum breaker for storage tank protection • High capacity/low pressure drop to ensure economical use • Not suitable for pulsating applications


Product Tags

Check Valve Emerson Keystone Check Valve

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