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AVK DOUBLE ECC. BUTTERFLY VALVE, LONG, PN16

IP67 gearbox w. act. flange/pos. ind., Duplex seal ring, Duplex shaft, intgr. seat, A4 fasteners, 300 µm EP coating

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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 756/102-032
Connection: Flanged
Material: Ductile iron
DN: DN200 - DN500
PN: PN 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, A4
  • Shaft and seal retainer ring in duplex stainless steel
  • 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, 300µm
  • Drinking water approved by DVGW and WRAS, drinking water approved by KIWA

Downloads

Datasheet
Appendix
Certificate(s)
Installation, operation and maintenance manuals
Animation
AVK butterfly 756 2024.mp4
Outline drawings DWG
Outline drawings DXF
Outline drawings IGS
Outline drawings STEP

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		 A
mm		 B
mm		 C
mm		 Actuator
flange		 Theoretical
weight/kg
756-0200-1-14302022 200 PN16 20 200 182 298 172 122 235 186 F10 51
756-0300-1-14302022 300 PN16 20 270 1 12 265 242 273 6 104 158 118 309 211 F10 114
756-0400-1-14302022 400 PN16 20 310 35 41 321 302 431 215 232 313 263 369 260 F10 166
756-0500-1-14302022 500 PN16 20 350 63 69 395 370 535 322 335 320 269 440 213 F10 282
Enquiry
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Components

1. Body Ductile iron GJS-500-7 (GGG-50)
2. Shaft, drive Stainless steel 1.4462, duplex
3. Bearing Bronze/PTFE composite
4. Cover Stainless steel
5. Key Stainless steel A4
6. Set screw Stainless steel A4
7. End cover Stainless steel
8. Disc Ductile iron GJS-500-7 (GGG-50)
9. Shaft, stub Stainless steel, duplex
10. Spacer Bronze
11. Thrust bearing Bronze
12. End plate Ductile iron GJS-500-7 (GGG-50)
13. Washer Stainless steel A4
14. Bolt Stainless steel A4
15. Screw Stainless steel A4
16. O-ring EPDM rubber
17. Gasket EPDM rubber
18. Nut Stainless steel A4
19. Seal retainer ring Stainless steel
20. Seal ring EPDM rubber
21. Gearbox Cast iron

Test/Approvals

  • Hydraulic test according to EN 1074-1 and -2 / EN 12266
  • Approved according to KIWA Certificate K 6320
  • Approved for drinking water according to WRAS Certificate No. 2206003

Standards

  • EN 593
  • Face-to-face dimension according to EN 558, Series 14
  • Flange drilling to EN1092, PN16
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