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AVK DOUBLE ECC. BUTTERFLY VALVE, LONG, PN10/16

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

Contact

Pham Trung

Technical Manager

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.

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 756/100-104
Connection: Flanged
Material: Ductile iron
DN: DN150 - DN600
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 fitted with an end cover that keeps the shaft in position against system pressure and seals the disc interior against corrosion
  • Replaceable shaft seals with two EPDM O-rings; gaskets to the exterior in hydrocarbon resistant NBR
  • Coated with blue RAL 5017 FBE to DIN 3476, GSK and approved by WRAS-DVGW/W270/UBA, 250µm
  • Drinking water approved by DVGW and WRAS, drinking water approved by KIWA

Downloads

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

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
756-0150-1-14000 150 PN10/16 250 210 - - 201 155 263 - - 276 37
756-0200-1-04 200 PN10 250 230 - - 227 182 279 - - 276 51
756-0200-1-14 200 PN16 250 230 - - 227 182 279 - - 276 51
756-0250-1-04 250 PN10 250 250 - 1 261 215 313 - 6 276 71
756-0250-1-14 250 PN16 250 250 - 1 261 215 313 - 6 276 71
756-0300-1-04 300 PN10 400 270 1 12 292 242 343 6 104 306 100
756-0300-1-14 300 PN16 400 270 1 12 292 242 343 6 104 306 106
756-0350-1-04 350 PN10 400 290 20 26 318 272 369 151 173 306 128
756-0350-1-14 350 PN16 400 290 20 26 318 272 369 151 173 306 134
756-0400-1-04 400 PN10 400 310 35 41 349 302 403 215 232 306 166
756-0400-1-14 400 PN16 400 310 35 41 349 302 403 215 232 306 166
756-0450-1-04 450 PN10 500 330 48 55 390 332 440 267 284 416 211
756-0450-1-14 450 PN16 500 330 48 55 390 332 440 267 284 416 219
756-0500-1-04 500 PN10 400 350 63 69 417 338 477 322 335 306 206
756-0500-1-14 500 PN16 500 350 63 69 427 370 496 322 335 416 282
756-0600-1-04 600 PN10 600 390 94 100 476 393 546 426 437 416 285
756-0600-1-14 600 PN16 600 390 94 100 503 435 586 426 437 450 426
2D/3D drawings
Enquiry
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Components

1. Body Ductile iron GJS-500-7 (GGG-50)
2. Shaft, drive Stainless steel AISI 431
3. Bearing Bronze/PTFE comp. on SS back
4. O-ring EPDM rubber
5. Bolt, socket head Stainless steel A2
6. Cover Stainless steel
7. Gasket EPDM rubber
8. Key Stainless steel A2
9. Set screw Stainless steel A2
10. Gasket EPDM rubber
11. End cover Stainless steel
12. Screw Stainless steel A2
13. Disc Ductile iron GJS-500-7 (GGG-50)
14. Shaft, stub Stainless steel AISI 431
15. Spacer Bronze
16. Thrust bearing Bronze
17. End plate Ductile iron GJS-500-7 (GGG-50)
18. Washer Stainless steel A2
19. Bolt Stainless steel A2
20. Screw Stainless steel A2
21. O-ring EPDM rubber
22. O-ring EPDM rubber
23. Gasket EPDM rubber
24. Nut Stainless steel A2
25. O-ring EPDM rubber
26. O-ring EPDM rubber
27. Screw Stainless steel A2
28. Seal retainer ring Stainless steel
29. Seal ring EPDM rubber
30. 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. 2206003, max. 23°C (DN200-600)

Standards

  • EN 593
  • Face-to-face dimension according to EN 558, Series 14
  • Flange drilling to EN1092, PN10/16
0 Files In the package

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