AVK BY-PASS GATE VALVE, PN16

For large AVK series 06 gate valves, DN80

Contact

AVK International A/S

Bizonvej 1, Skovby, 8464 Galten, Denmark

By-pass gate valve for large AVK series 06 gate valves

AVK series 126 is a small gate valve specially designed to be installed in parallel with a larger gate valve. As gate valve size increases the water pressure force on the wedge can become so large that the operation of the valve becomes difficult to manage with ordinary means. To reduce these forces a by pass valve can be installed to release the pressure difference and ease the operation. AVK series 126 is designed to be installed on AVK series 06, DN700, DN900 and DN1000. 

Variant 126/99-001
Connection: Flanged
Material: Ductile Iron
DN: DN80
PN: PN16
Closing direction: Clockwise to Close

Features

  • A fixed, integral wedge nut prevents vibration and ensures durability

  • Fully vulcanized wedge with guide rails and polyamide wedge shoes ensure effortless opening and closing
  • A large conical stem hole in the wedge creates circulation and prevents stagnant water
  • Three independent stem seals: outermost an NBR wiper ring protects against pollution from the environment, next the polyamide radial bearing incorporates two NBR O-rings and innermost an EPDM lip seal is the main hydraulic seal to the flow
  • Full circle thrust collar provides fixation of the stem and low free running torques
  • Round EPDM bonnet gasket fixed in a recess to prevent blow-out
  • Counterbored stainless steel bonnet bolts encircled by the bonnet gasket and sealed with hot melt glue
  • Full bore
  • Epoxy coating to DIN 3476-1 and EN 14901, GSK approved

Reference nos. and dimensions:

AVK ref. no. DN
mm
H3
mm
L
mm
W
mm
W1
mm
Theoretical
weight / kg
Enquiry
126-1000-99-1039464 80 349 236 395 260 16

Downloads

Datasheet (PDF)

Components

1. Wiper ring NBR rubber
2. Stem seal EPDM rubber
3. Bonnet bolt Stainless steel A2
4. Body Ductile iron
5. Wedge nut Brass, DZR CW626N
6. Wedge core Ductile iron
7. Wedge rubber EPDM rubber
8. O-ring NBR rubber
9. Radial bearing PA 6.6
10. O-ring NBR rubber
11. Thrust collar Brass, DZR CW602N
12. Stop ring Stainless steel 1.4104
13. Stem Stainless steel 1.4104
14. Bonnet Ductile iron
15. Bonnet gasket EPDM rubber
16. Wedge shoe PA 6.6

Test/Approvals

  • Hydraulic test according to EN 1074-1 and 2 / EN 12266

Standards

  • Designed according to EN 1074 part 1 & 2
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