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AVK DOUBLE ECCENTRIC BUTTERFLY VALVE, PN25

Integral seat, IP67 gearbox, DN200-600, plate disc, long

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AVK Saudi Valves

Jeddah Industrial City, Phase 4, Street no 45 P.O. Box 10830, 21443 Jeddah 24/7 Leakage Repair Service +966 50 595 5166

Double eccentric butterfly valve to EN 593 w. integral seat and IP67 gearbox w. handwheel - PN 25 for drinking water and neutral liquids to max. 70°C

AVK double eccentric butterfly valves are designed with tilted and fixated disc for extended service life and 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 GSK approved epoxy coating and the corrosion protected shaft end zones ensure high durability. The valves are suitable for bi-directional application.

Variant 756/118-010
Connection: Flanged
Material: Ductile iron
DN: DN200 - DN600
PN: PN 25
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

Downloads

Datasheet

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
756-0200-1-74018 200 PN25 250 230 - - 223 190 288 - - 277 57
756-0250-1-74018 250 PN25 400 250 - - 268 223 333 - - 306 92
756-0300-1-74018 300 PN25 400 270 1 12 303 253 368 17 115 306 117
756-0400-1-74018 400 PN25 400 310 34 40 373 320 435 217 234 306 190
756-0500-1-74018 500 PN25 600 350 63 69 454 375 546 325 338 461 306
756-0600-1-74018 600 PN25 700 390 92 98 541 430 632 424 434 449 484
Enquiry
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Components

1. Key Stainless steel A2
2. Drive shaft Stainless steel 431
3. Screw Stainless steel A2
4. Spacer Bronze
5. Bearing Bronze / PTFE composite
6. Body Ductile iron GJS-500-7 (GGG-50)
7. O-ring EPDM rubber
8. Security plate Stainless steel
9. Spring washer Stainless steel A2
10. O-ring EPDM rubber
11. O-ring EPDM rubber
12. O-ring EPDM rubber
13. Disc Ductile iron GJS-500-7 (GGG-50)
14. Dowel Stainless steel
15. Bolt Stainless steel A2
16. Washer Zinc
17. O-ring EPDM rubber
18. Stub shaft Stainless steel 431
19. O-ring EPDM rubber
20. O-ring EPDM rubber
21. Gasket NBR rubber
22. End plate Ductile iron GJS-500-7 (GGG-50)
23. Washer Stainless steel A2
24. Bolt Stainless steel A2
25. Set screw Stainless steel A2
26. Thrust bearing Bronze
27. Screw Stainless steel A2
28. Set screw Stainless steel A2
29. Nut Stainless steel A2
30. O-ring EPDM rubber
31. O-ring EPDM rubber
32. Screw Stainless steel A2
33. Seal ring EPDM rubber
34. Seal retainer ring Stainless steel
35. Gearbox Cast iron

Test/Approvals

  • Hydraulic test according to EN 1074-1 and 2 / EN 12266
  • Approved for drinking water

Standards

  • EN 593
  • Face to face according to EN 558 Table 2 Basic Series 14
  • Standard flange drilling to EN1092-2 (ISO 7005-2), PN 25
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