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AVK DOUBLE ECCENTRIC BUTTERFLY VALVE

ACC, Double Flange, PN25, AS/NZS 4087 B6, DN150-1200

AVK Wingfield Plant

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AVK Australia Civil

559A Grand Junction Road Wingfield SA 5013 Sales and Technical enquiry

Double eccentric butterfly valve 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 ability to retain its original shape. The fully encapsulated shaft/disc connection ensures high durability and service life. The valves are suitable for bi-directional application.

Variant 756/142-001
Connection: Flanged
Material: Ductile Iron
DN: DN150 - DN1200
PN: PN25
Closing direction: Anti Clockwise 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
  • Fasteners in stainless steel, A4
  • Shaft in duplex stainless steel and seal retainer ring in AISI 316 stainless steel
  • Replaceable seat ring in stainless steel 1.4401/AISI 316 pressed into the body (DN≤600) or fixed with bolts (DN≥700) and sealed with an O-ring
  • All threaded connections are sealed with O-rings for protection against medium and environment
  • Radial bearings in self-lubricating PTFE/bronze composite
  • Shaft ends DN≤600 fitted with an end cover that keeps the shaft in position against system pressure and seals the disc interior against corrosion
  • Shaft ends DN≥700 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 protection according to AS/NZS 4158
  • IP68 Gearbox with Position Indicator

Downloads

Datasheet
Related Datasheets
Certificate(s)
Installation, Operation & Maintenance
Animation
AVK butterfly 756 2024.mp4

Reference nos. and dimensions:

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AVK ref. no. DN
mm		 Flange
drilling		 D1
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-E474297 150 AS2129 F 500 210 - - 200 162 466 - - 525 47
756-0200-1-E474297 200 AS2129 F 500 230 - - 225 190 499 - - 526 60
756-0250-1-E474297 250 AS2129 F 500 250 - - 268 222.5 538 - - 666 102
756-0300-1-E474297 300 AS2129 F 500 270 - 12 303 252.5 575 - 114 716 131
756-0350-1-E474297 350 AS2129 F 500 290 19 25 331 287.5 600 155 176 675 166
756-0400-1-E474297 400 AS2129 F 500 310 33 39 373 320 642 216 232 675 205
756-0450-1-E474297 450 AS2129 F 500 330 47 53 412 345 696 269 283 738 294
756-0500-1-E474297 500 AS2129 F 500 350 63 69 455 375 739 326 338 738 342
756-0600-1-E474297 600 AS2129 F 500 390 92 98 541 430 827 424 435 745 530
756-0700-1-E474297 700 AS2129 F 500 430 124 130 579 480 867 527 537 742 715
756-0800-1-E474297 800 AS2129 F 500 470 155 161 665 542.5 966 626 635 857 1016
756-0900-1-E474297 900 AS2129 F 500 510 185 191 718 592.5 1016 721 729 875 1247
756-1000-1-E474297 1000 AS2129 F 500 550 215 221 789 660 1086 814 822 875 1582
756-1200-1-E474297 1200 AS2129 F 500 630 268 274 921 765 1206 985 993 911 2335
Enquiry
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Components

1. End plate Ductile iron GJS-500-7
2. Gasket EPDM rubber
3. Bearing Bronze
4. Seal housing Bronze
5. Shaft, stub Stainless steel 1.4462, duplex
6. Seal ring EPDM rubber
7. Disc Ductile iron GJS-500-7
8. Radial bearing CSB
9. Shaft, drive Stainless steel 1.4462, duplex
10. Body Ductile iron GJS-500-7
11. Gearbox
12. Blanking flange Ductile iron GJS-500-7
13. Pin Stainless steel 1.4462, duplex
14. Bolt Stainless steel A4
15. Disc cover Stainless steel 316
16. Seat ring Stainless steel 316L
17. Bolt Stainless steel A4
18. End cover Stainless steel 1.4462, duplex
19. Bolt Stainless steel A4
20. Key Stainless steel A4
21. Bolt Stainless steel A4
22. Valve seat ring Stainless steel 316

Test/Approvals

  • Approved according to KIWA Certificate K 6320 (DN 700-800 only)
  • Approved according to WRAS Certificate No. 1702367

Standards

  • Designed to: EN 1074-1/2
  • Face-to-face dimension according to EN 558 Table 2 Basic Series 14
  • Flange drilling: AS 2129 F
  • Materials according to AS 4795.2
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