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BUTTERFLY VALVE, DOUBLE ECCENTRIC, LONG, PN10/16

IP67 gearbox, handwheel/pos. ind./SS shaft & bolts, intgr. seat, SS seal ring/SS-4057 shaft, A2 fasteners, 250µm EP coating

Industrial Netherlands building

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AVK Industrial Nederland BV

Schorsweg 1 8171 ME Vaassen Netherlands

Double eccentric butterfly valve to EN 593 for neutral liquids like drinking water and treated waste water free from solids and fibrous impurities to max 70°C. Sizes up through DN2400 are suitable for bi-directional application, DN2600 and above must be operated uni-directionally.

AVK double eccentric butterfly valves with tilted disc are designed for easy operation and long service life. The disc seal is made of AVK's drinking water approved EPDM rubber featuring an excellent compression set and ability to regain the original shape. The high quality epoxy coating and fully encapsulated shaft/disc connection ensure optimal corrosion protection and durability

Variant 756/100-671
Connection: Flanged
Material: Ductile iron
DN: DN700 - DN2400
PN: PN10/16
Closing direction: Clockwise to Close

Features

  • Double eccentric design releases seal compression after only few degrees of opening resulting in low operating torque
  • Disc firmly fixed to the shaft to prevent fluttering and a slight tilt allows for precise adjustment of the closed position
  • Disc seal profile and rubber quality ensure low closing torque
  • All rubber parts drinking water approved by multiple institutes
  • Fasteners in stainless steel, A2
  • Stainless steel shaft and seal retainer ring
  • Machined and epoxy coated ductile iron seat integrated in the body
  • All threaded connections are sealed with O-rings for protection against medium and environment
  • Radial bearings in self-lubricating PTFE/bronze composite
  • Shaft ends fully encapsulated in the disc and fixed with O-ring sealed dowels held in place with a security plate. Key and keyway as backup
  • Replaceable shaft seals with two EPDM O-rings; gaskets to the exterior in hydrocarbon resistant NBR
  • Coating DN≤1600: Blue RAL 5017 FBE to DIN 3476, GSK and approved by WRAS-DVGW/W270/UBA, 250µm
  • Coating DN≥1800: 2-pack EP, WRAS approved, RAL5017 externally and ribbon blue or cream white internally, 250µm
  • Bi-directional operation up through DN2400 and uni-directional from DN2600 and above
  • Drinking water approved by DVGW and WRAS (DN≤1200), drinking water approved by KIWA (DN≤800)

Downloads

Datasheet
Appendix
Certificate(s)
Installation, operation and maintenance manuals
Animation
AVK butterfly 756 2024.mp4
Guidelines

Reference nos. and dimensions:

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Reference 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
756-0700-1-04 700 PN10 600 430 127 133 550 448 641 533 543 457 444
756-0700-1-14 700 PN16 700 430 127 133 550 455 641 533 543 517 517
756-0800-1-04 800 PN10 600 470 156 162 620 508 711 627 636 457 592
756-0800-1-14 800 PN16 700 470 156 162 620 513 711 627 636 517 663
756-0900-1-04 900 PN10 700 510 186 192 690 558 791 722 730 517 745
756-0900-1-14 900 PN16 700 510 186 192 690 563 791 722 730 570 874
756-1000-1-04 1000 PN10 700 550 216 222 770 615 871 816 824 530 974
756-1000-1-14 1000 PN16 600 550 216 222 770 628 871 816 824 570 1113
756-1200-1-04 1200 PN10 600 630 269 275 855 728 956 986 993 570 1442
756-1200-1-14 1200 PN16 700 630 269 275 855 743 956 986 993 591 1678
756-1400-1-04 1400 PN10 700 710 333 339 970 838 1071 1182 1189 570 2150
756-1400-1-14 1400 PN16 700 710 333 339 970 843 1119 1182 1189 591 2472
756-1500-1-04 1500 PN10 700 750 363 369 1070 893 1171 1274 1281 570 2606
756-1500-1-14 1500 PN16 700 750 363 369 1070 913 1219 1274 1281 591 3001
756-1600-1-04 1600 PN10 700 790 390 396 1145 958 1294 1359 1366 591 3187
756-1600-1-14 1600 PN16 700 790 390 396 1145 965 1294 1359 1366 631 3468
756-1800-1-04 1800 PN10 600 870 448 454 1220 1058 1369 1540 1547 734 3794
756-1800-1-14 1800 PN16 600 870 448 454 1220 1065 1398 1540 1547 734 4217
756-2000-1-04 2000 PN10 600 950 521 527 1382 1180 1547 1753 1760 734 5287
756-2000-1-14 2000 PN16 600 950 521 527 1382 1180 1560 1753 1760 734 5755
756-2200-1-04 2200 PN10 500 1030 576 582 1472 1275 1650 1926 1932 784 6534
756-2200-1-14 2200 PN16 600 1030 576 582 1482 1278 1657 1926 1932 810 8361
756-2400-1-04 2400 PN10 600 1110 633 639 1613 1380 1759 2103 2109 810 9370
756-2400-1-14 2400 PN16 600 1110 633 639 1584 1382 1753 2103 2109 810 11520
2D/3D drawings
Enquiry
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Components

1. Key Stainless steel A2
2. Valve shaft Stainless steel AISI 431
3. Seal housing Bronze
4. O-ring EPDM rubber
5. O-ring EPDM rubber
6. Radial bearing Bronze/PTFE comp. on SS back
7. Disc cover Stainless steel
8. Disc cover gasket EPDM rubber
9. O-ring EPDM rubber
10. Dowel Stainless steel A2
11. O-ring EPDM rubber
12. Blanking flange Ductile iron EN-GJS-500-7
13. Body Ductile iron EN-GJS-500-7
14. Disc Ductile iron EN-GJS-500-7
15. Screw Stainless steel A2
16. Security plate Stainless steel
17. Screw Stainless steel A2
18. O-ring EPDM rubber
19. Spring washer Stainless steel A2
20. O-ring EPDM rubber
21. Washer Zinc
22. Nut Stainless steel A2
23. Washer Stainless steel A2
24. Screw Stainless steel A2
25. Screw Stainless steel A2
26. Thrust bearing Bronze
27. Screw Stainless steel A2
28. End plate Ductile iron EN-GJS-500-7
29. Gasket EPDM rubber
30. Shaft, stub Stainless steel AISI 431
31. Safety key Stainless steel A2
32. Screw Stainless steel A2
33. Screw Stainless steel A2
34. O-ring EPDM rubber
35. Bolt Stainless steel A2
36. Washer Stainless steel A2
37. O-ring EPDM rubber
38. Seal retainer ring Stainless steel
39. Disc seal EPDM rubber
40. Gearbox Cast iron

Test/Approvals

  • Hydraulic test according to EN 1074-1 and -2 / EN 12266
  • Approved according to DIN-DVGW Certificate NW-6201BR0451 (DN ≤ 1200)
  • Approved according to KIWA Certificate K 6320 (DN ≤ 800)
  • Approved for drinking water according to WRAS Certificate No. 2307007, max. 23°C (DN700-1200)

Standards

  • EN 593
  • Face to face to EN 558 ser. 14 (DN≤2000) / DIN3202-F4 (DN>2000)
  • Flange drilling to EN1092-2 (DN≤2000) / DIN2501(DN>2000 PN10 body)
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