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AVK CENTRIC WAFER BUTTERFLY VALVE, PN 10/16

Fixed EPDM liner, duplex/rilsan coated disc,

Mamoun Humayra, AVK UK Product Manager - Water

Mamoun Humayra

Water Product Manager

Centric butterfly valve with fixed liner - Wafer - duplex/rilsan coated disc for water and neutral liquids to max. 110°C

AVK centric butterfly valves with fixed liner feature an outstanding seating concept. The rubber is injection moulded directly on the valve body forming a permanent bond. Consequently, there is no risk of deformation or dislocation of the liner making the valves suitable under vacuum conditions. The combination of the profiled disc edge and the excellent AVK rubber quality ensures maximum durability of the liner.

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Variant 75/10-020
Connection: Flanged
Material: Ductile Iron
DN: DN40 - DN1000
PN: PN 16

Features

  • Bonded vulcanized liner of drinking water approved EPDM with an excellent compression set and thus ability to regain its original shape
  • Streamlined disc with minimum flow resistance
  • Profiled disc edge requires minimal deformation of the liner to achieve tight sealing, and results in less wear of the liner
  • Disc, shaft and conical pin of duplex steel in DN≤200. Disc of rilsan coated ductile iron, and shaft and conical pin of stainless steel in DN≥250
  • Shaft bearings of PTFE coated steel
  • Top shaft sealing: DN≤350: Bronze bushing with two EPDM O-rings, DN≥400: EPDM O-ring in bushing fixed with countersunk screws of galvanized steel
  • Bottom shaft sealing: DN≤350: Plug of galvanized steel with a copper sealing ring, DN≥400: Axial bearing and ring of alubronze and an EPDM O-ring, protected by a cover plate of galvanized steel
  • Low torques as a result of the profiled disc edge and fixed liner design
  • Ductile iron body with 200 μ epoxy coating blue RAL 5017

Downloads

Price list
Guidelines
Related Datasheets
Datasheet
Certificate(s)
Outline drawings
Animation
AVK_centric_butterfly_valve_fixedliner_animation.mp4

Reference nos. and dimensions:

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Ref. no. DN
mm		 Product PN Class
 L
mm		 H1
mm		 H2
mm		 F
mm		 F2
mm		 L5
mm		 ISO
Flange		 Theoretical
weight/kg		 Notes
75-0040-10-223002614200 40 PN16 43 118 63 10 34 12 90 2.6 Disc material in Duplex
75-0050-10-223002614200 50 PN16 43 118 63 10 34 12 90 3.0 Disc material in Duplex
75-0065-10-223002614200 65 PN16 46 126 71 10 34 12 90 3.2 Disc material in Duplex
75-0080-10-223002614200 80 PN16 46 133 78 10 34 12 90 3.5 Disc material in Duplex
75-0100-10-223002614200 100 PN16 52 147 98 12 34 12 90 4.5 Disc material in Duplex
75-0125-10-223002614200 125 PN16 56 160 109 12 34 12 90 6.3 Disc material in Duplex
75-0150-10-223002614200 150 PN16 56 180 133 16 34 14 90 8.8 Disc material in Duplex
75-0200-10-223001314200 200 PN10 60 204 158 16 34 14 90 13 Disc material in Duplex
75-0250-10-225101314200 250 PN10 68 245 194 24 45 15 125 22
75-0300-10-225101314200 300 PN10 78 270 219 24 45 15 125 32
75-0350-10-225101314200 350 PN10 78 315 256 24 45 15 125 40
75-0400-10-225101314200 400 PN10 102 353 308 30 50 25 175 75
75-0450-10-225101314200 450 PN10 114 388 334 30 50 25 175 90
75-0500-10-225101314200 500 PN10 127 413 360 30 50 25 175 120
75-0600-10-225101314200 600 PN10 154 510 426 40 50 25 175 180
75-0700-10-225101314200 700 PN10 165 560 480 46 60 25 210 295
75-0800-10-225101314200 800 PN10 190 610 525 46 60 25 210 345
75-0900-10-225101314200 900 PN10 203 690 635 60 90 30 300 475
75-1000-10-225101314200 1000 PN10 216 740 685 60 90 30 350 635
Enquiry
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Components

1. Shaft Duplex steel
2. Bushing Bronze
3. O-ring EPDM
4. Body Ductile iron GJS-400-15
5. Bearing PTFE coated steel
6. Conical pin Duplex steel
7. Disc DN≤200 Duplex SS, DN≥250 DI
8. Shaft Duplex steel
9. Liner EPDM
10. Bearing PTFE coated steel
11. Seal ring Copper
12. Plug Galvanized steel
13. Screw Galvanized steel
14. Ring Alu-bronze
15. O-ring EPDM
16. Thrust bearing Alu-bronze
17. Cover plate Galvanized steel
18. Screw Galvanized steel

Test/Approvals

  • Hydraulic test according to EN 1074-1 and 2 / EN 12266.
  • Approved according to KIWA Certificate K 6070/05

Standards

  • End connection to en-GB 1092-2 PN 6/10/16, ASME B16.5 Cl. 150
  • WIMES 8.09 Compliant
  • Drinking Water Inspectorate Regulation 31 compliant
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