Spare parts for EURO20 NG - Gate and body bonnet gasket replacement

Item 2 and 4

Spare parts for EURO20 NG - Gate and body bonnet gasket replacement

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SPARE PARTS
SPARE PARTS
RANGE / MARK ®
Accessories VALVES

Item 2 and 4

  • 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.
  • To make profitable the demounting of the mechanism to check the good state of the dismounted parts.
  • Remove the gate 2 of the body 12 and released the operating nut 3 of the gate 2
  • Install the operating nut 3 on the new gate 2 and set up gate + nut in the body
  • Lubricate the operating stem 13 with alimentary fat paste.
  • 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.