Fig. 861 / 861A / 866

Check Valve – Replaces Fig. 860 & 865 – Cast Iron

Check valves permit flow in one direction only and close automatically if flow reverses, depending upon pressure and velocity of flow to perform the functions of the opening and closing.

  • Non-Slam design as a result of rubber seat and spring-assisted closure.
  • EPDM rubber seat to facilitate quiet operation and improve disk seating.
  • Eyebolt tapped holes in sizes DN200 and above, to fit eyebolts to BS EN 1S0 3226: 2010 (eyebolts are not supplied with valve).
  • Design and construction lends itself to pump duty applications.
  • BIM File Available

Product Overview

Please refer to Datasheet for full technical information

DN50 to DN600
Pressure rating
Cast Iron
End Connnections
Suitable for flange connection to
BS EN 1092-2 PN16 / BS EN 1092-2 PN25 / ANSI B16.1 125
Pressure / Temperature
Fig. 861: PN16
Fig. 861A : ANSI 125
Fig. 866 : PN25
Temperature range -10 to 120°C

Please select from the files below


Please select from the files below