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BUTTERFLY VALVE, CONCENTRIC, FIXED LINER, PN10/16

EN1092 flanged, long EN558/14, fixed EPDM lining, DI body, DI/Rilsan coated disc/SS shaft, dif. P 16bar, 200um coating blue, bare shaft

Concentric butterfly valve for water and neutral liquids to max. 70°C

Concentric 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.

Variant 75/66-202
Connection: Wafer type valve
Material: Ductile iron
PN: PN10/16

Features

  • Bonded vulcanized liner EPDM with an excellent compression set and thus ability to regain its original shape
  • Streamlined disc with minimum flow resistance
  • Hexagon disc - shaft connection
  • Profiled disc edge requires minimal deformation of the liner to achieve tight sealing, and results in less wear of the liner
  • Disc in ductile iron, Rilsan coated and shaft of stainless steel 1.4021
  • Shaft bearings of PTFE coated steel
  • Top shaft sealing: DN ≤ 350: POM bushing with thick NBR O-ring, DN ≥ 400: NBR O-ring in POM bushing fixed with countersunk screws of zinc plated steel
  • Bottom shaft sealing: DN ≤ 350: Plug of zinc plated steel with a bonded sealing washer, steel / NBR, DN ≥ 400: Axial bearing and ring of POM and an NBR O-ring, protected by a cover plate of zinc plated steel
  • Low torques as a result of the profiled disc edge and fixed liner design
  • Ductile iron body with 200µm epoxy / PUR coating blue RAL 5017

Downloads

Datasheet

Components

1. Shaft Stainless steel 1.4021
2. Anti-blow-out cover POM
3. Radial bearing POM
4. O-ring NBR rubber
5. Body Ductile iron GJS-400-15
6. Bearing Steel, PTFE coated
7. Disc Ductile iron, GJS-400-15 Rilsan coated
8. Shaft Stainless steel 1.4021
9. Lining EPDM rubber
10. Seal ring Steel, zinc plated / NBR
11. Plug Steel, zinc plated
12. Hex socket head screw Steel, zinc plated
13. Axial bearing POM
14. Support ring POM
15. O-ring EPDM rubber
16. Axial bearing POM
17. Cover plate Steel, zinc plated
18. Hex head bolt Steel, zinc plated
19. Set screw Steel, zinc plated
20. Hex nut Steel, zinc plated
21. Bearing disc POM
22. Identification plate Stainless steel
23. Blind rivet Stainless steel

Test/Approvals

  • Tested to EN 12266
  • DVGW approved materials
  • KIWA approved materials
  • WRAS approved materials

Standards

  • EN 1074 part 1 & 2, EN 593
  • Face-to-face dimension according to EN 558, basic series 14
  • Flange drilling to EN1092, PN10/16
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