AVK DOUBLE ECCENTRIC BUTTERFLY VALVE, PN25

Integral seat, IP68 gearbox/pos indicator, plate disc, long, DN150-1200

AVK headquater in Skovby Galten, Denmark

Contact

AVK International A/S

Bizonvej 1, Skovby, 8464 Galten, Denmark

Double eccentric butterfly valve to EN 593 w. integral seat and IP68 gearbox - PN 25 for drinking water and neutral liquids to max. 70°C

AVK double eccentric butterfly valves are designed with tilted disc for easy operation. The disc seal is made of AVK’s drinking water approved EPDM rubber featuring an excellent compression set and thus ability to regain its original shape. The high quality epoxy coating and fully encapsulated shaft/disc connection ensure high durability. The valves are suitable for bi-directional application.

Variant 756/106-781
Connection: Flanged
Material: Ductile Iron
DN: DN150 - DN1200
PN: PN 25
Closing direction: Clockwise to Close

Features

  • The tilted disc releases the compression of the disc sealing after a few degrees of opening resulting in low operating torque

  • The disc seal profile and rubber quality ensure low closing torques
  • All rubber parts are multi approved
  • Seal retainer ring of stainless steel
  • The threaded bolt holes in the disc are corrosion protected with O-rings
  • Machined and epoxy coated ductile iron seat integrated in the body
  • Shaft of stainless steel with self-lubricating bearings
  • The shaft ends are fully encapsulated in the disc and are fixed with dowels corrosion protected with O-rings and a stainless steel security plate. Key and keyway as backup
  • Replaceable shaft sealing with two EPDM O-rings on each side of a bronze bushing, and a flat NBR gasket
  • Optional locking device
  • Body and disc of ductile iron with fusion bonded epoxy coating in compliance with DIN 3476 part 1 and EN 14901, GSK approved RAL 5017, according to WRAS-DVGW/W270/UBA

Downloads

Datasheets
Certificate(s)
Appendix
Installation

Reference nos. and dimensions:

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AVK ref. no. DN
mm
Flange
drilling
D
mm
L
mm
L1
mm
L2
mm
H2
mm
W1
mm
W2
mm
W3
mm
W4
mm
W5
mm
Theoretical
weight/kg
756-0150-1-74006 150 PN25 20 210 - - 192 162 260 - - 178 38
756-0200-1-74006 200 PN25 20 230 - - 223 190 288 - - 201 54
756-0250-1-74006 250 PN25 20 250 - - 268 223 333 - - 210 85
756-0300-1-74006 300 PN25 20 270 1 12 303 253 368 17 115 210 109
756-0350-1-74006 350 PN25 20 290 19 25 331 288 393 155 176 210 144
756-0400-1-74006 400 PN25 20 310 34 40 373 320 435 217 234 210 184
756-0450-1-74006 450 PN25 20 330 48 54 411 345 503 270 285 345 248
756-0500-1-74006 500 PN25 20 350 63 69 454 375 546 325 338 345 296
756-0600-1-74006 600 PN25 20 390 92 98 541 430 632 424 434 333 472
756-0700-1-74006 700 PN25 700 430 124 130 566 483 706 527 537 570 661
756-0800-1-74006 800 PN25 700 470 155 161 650 546 815 626 635 570 570
756-0900-1-74006 900 PN25 700 510 185 191 701 593 865 721 729 570 1127
756-1000-1-74006 1000 PN25 700 550 216 222 771 663 935 813 824 570 1424
756-1200-1-74006 1200 PN25 700 630 268 272 899 768 1031 982 987 630.5 2306
3D drawings
Enquiry
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Components

1. Key Stainless steel A2
2. Drive shaft Stainless steel 431
3. Seal housing Bronze
4. O-ring EPDM rubber
5. O-ring EPDM rubber
6. Self-lubricating bearing Bronze / PTFE composite
7. Disc cover Stainless steel
8. Disc cover gasket EPDM rubber
9. Dowel Stainless steel
10. Disc Ductile iron GJS-500-7 (GGG-50)
11. O-ring EPDM rubber
12. Centre flange Ductile iron GJS-500-7 (GGG-50)
13. Security plate Stainless steel
14. Screw Stainless steel A2
15. O-ring EPDM rubber
16. Spring washer Stainless steel A2
17. Washer Zinc
18. O-ring EPDM rubber
19. Body Ductile iron GJS-500-7 (GGG-50)
20. Nut Stainless steel A2
21. Washer Stainless steel A2
22. Bolt Stainless steel A2
23. O-ring EPDM rubber
24. Washer Stainless steel A2
25. O-ring EPDM rubber
26. Bolt Stainless steel A2
27. Seal retainer ring Stainless steel 420
28. Disc seal EPDM rubber
29. Screw Stainless steel A2
30. Bolt Stainless steel A2
31. O-ring EPDM rubber
32. Washer Stainless steel A2
33. O-ring EPDM rubber
34. Safety key Stainless steel A2
35. End plate Ductile iron GJS-500-7 (GGG-50)
36. Gasket EPDM rubber
37. Screw Stainless steel A2
38. Thrust bearing Bronze
39. Screw Stainless steel A2
40. Stub shaft Stainless steel 431
41. Screw Stainless steel A2
42. Gearbox Cast iron

Test/Approvals

  • Hydraulic test according to EN 1074-1 and 2 / EN 12266
  • Approved for drinking water
  • Approved according to DIN-DVGW Certificate NW-6201BR0451

Standards

  • Designed according to EN 593
  • Face-to-face dimension according to EN 558 Table 2 Basic Series 14
  • Standard flange drilling to EN1092-2 (ISO 7005-2), PN25
0 Files In the package
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