Spare parts for EURO20 NG - Operating system complete replacement

Item 3-4-7-8-9-10-11-13-14-18

Spare parts for EURO20 NG - Operating system complete replacement

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Item 3-4-7-8-9-10-11-13-14-18

  • Close upstream and downstream isolation valves for close the water main.
  • Disassembly various accessories installed on the valve.
  • Shutting the E20 valve totally.
  • Loose the bearing nut 8 with the key recommended on the technical data sheet spare parts, and to entirely unscrew it.
  • Remove the lock washer 9, the O’ring 10 and the Yoke 6
  • Open the valve of a quarter of turn
  • Unscrew the sealing bush 11 (make sure that the operating stem 13 does not turn )
  • Unscrew and remove the operating stem 13
  • After that the bonnet 5 falls on the gate 2.
  • Extract the bonnet 5 from the body: for that make it swivel vertically on 90°, then to upwards draw it by one from its ends (see data sheet R1 635)
  • Remove body bonnet gasket 4 enclosed on the circumference of the bonnet 5
  • Install the new gasket 4 on the bonnet 5.
  • Remove the O’ ring 18. Remove the lock washer 14.
  • Release the operating nut 3 of the gate 2.
  • Install the operating nut 3 on the gate 2.
  • Lubricate the new operating 13 with lubricating paste compatible with drinking water.
  • Verify the good state of the elastomer gate 2.
  • Proceed in direction reverses for the reassembly, and immobilize the lock washer 9 by a blow of punch at the level of the notch envisaged on the yoke 6.
  • Test the tightness and the correct operation of the operating system.