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AVK CENTRIC U-SECTION BUTTERFLY VALVE, PN6

Loose EPDM liner for drinking water, with double acting pneumatic actuator, DN150-1600

AVK headquater in Skovby Galten, Denmark

Contact

AVK International A/S

Bizonvej 1, Skovby, 8464 Galten, Denmark

Centric butterfly valve with loose liner and double acting pneumatic actuator - U-section for drinking water and neutral liquids -20 - 95°C

AVK centric butterfly valves with loose liner are available in wafer, lug and U-section design with a wide standard range of actuators. The butterfly valves are designed with square driven anti-blowout shaft and slim disc of acid-resistant stainless steel with machined and polished disc edges resulting in low torques. 

Variant 820/20-011
Material: Ductile iron/ 1.4408 disc
DN: DN150 - DN1600
PN: PN 6
Closing direction: Clockwise to Close

Features

  • Ductile iron with long neck for insulation
  • Loose liner of drinking water approved EPDM with integrated gasket faces and “saw profile” for optimum grip in body
  • Square driven anti-blowout shaft in one-piece design up to DN 400, and from DN 450 with key and keyway in two-piece stub design with two self-lubricating bearings
  • Slim disc of acid-resistant stainless steel with machined and polished edges reducing the friction between liner and disc
  • Low operating torques allowing use of cost-effective actuators
  • 200 μ epoxy coating up to DN 400, 250 μ polyurethane from DN 450, optionally other coatings
  • According to PED 97/23/EC appendix 1
  • Mounted with a double acting pneumatic actuator: Body of extruded aluminum with ALODUR® corrosion protection up to DN 600, from DN 700 anodized and polyurethane coated. Anodized and polyester coated end caps. Honed cylinder surface and symmetric rack and pinion design for long service life. One-piece blow-out proof nickel-plated drive shaft with bearing guided one-piece pinion. High quality bearings and seals for low friction and a wide operating temperature range. All screws of stainless steel. According to EN ISO 5211, VDI/VDE 3845, NAMUR and ATEX (Directive 94/9/CE).

Downloads

Datasheet
Installation
Appendix
Animation
AVK_Centric_butterfly_valve.mp4
Certificate(s)

Reference nos. and dimensions:

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AVK ref. no. DN
mm		 Product
PN Class		 Flange
drilling		 L
mm		 L2
mm		 H2
mm		 W2
mm		 W3
mm		 W
mm		 W1
mm		 Theoretical
weight/kg		 Notes
820-0150-20-04020120005 150 PN 6 PN10/16 56 285 133 210 345 119 241 13
820-0200-20-04020020005 200 PN 6 PN10 60 340 163 240 387 131 259 18
820-0250-20-04020020005 250 PN 6 PN10 68 406 196 279 466 159 333 33
820-0300-20-04020020005 300 PN 6 PN10 78 482 232 315 522 183 395 46
820-0350-20-04020020005 350 PN 6 PN10 80 533 257 330 556 201 423 60
820-0400-20-04020020005 400 PN 6 PN10 102 597 292 365 660 245 528 92
820-0450-20-04060021005 450 PN 6 PN10 113 640 355 397 746 284 605 151 250 my PUR coating on body
820-0500-20-04060021005 500 PN 6 PN10 126 715 393 437 817 319 710 203 250 my PUR coating on body
820-0600-20-04060021005 600 PN 6 PN10 153 840 464 522 955 371 812 303 250 my PUR coating on body
820-0700-20-04060021005 700 PN 6 PN10 168 927 503 565 1025 418 855 407 250 my PUR coating on body
820-0800-20-04060021005 800 PN 6 PN10 190 1060 577 627 1087 418 855 637 250 my PUR coating on body
820-0900-20-04060021005 900 PN 6 PN10 204 1170 643 696 1294 528 950 861 250 my PUR coating on body
820-1000-20-04060021005 1000 PN 6 PN10 216 1255 693 745 1343 528 950 991 250 my PUR coating on body
820-1100-20-04060021005 1100 PN 6 PN10 218 1395 738 820 1331 468 1375 1109 250 my PUR coating on body
820-1200-20-04060021005 1200 PN 6 PN10 254 1485 806 881 1401 548 1460 1481 250 my PUR coating on body
820-1400-20-04060021005 1400 PN 6 PN10 280 1746 908 990 1660 598 1465 2080 250 my PUR coating on body
820-1600-20-04060021005 1600 PN 6 PN10 318 1924 1048 1117 1822 685 1672 3208 250 my PUR coating on body
2D/3D drawings
Enquiry
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Components

1. Bolt Stainless steel A2
2. Washer Stainless steel A2
3. O-ring NBR rubber
4. Shaft Stainless steel 420
5. Body Ductile iron GJS-400-15 (GGG-40)
6. Liner EPDM rubber
7. Disc Stainless steel 316

Test/Approvals

  • Hydraulic test according to EN 12266-1, P10/P12
  • Approved according to SVGW Certificate No. 9901-4048

Standards

  • Designed according to EN 593
  • Face-to-face dimension according EN 558 - Series 20
  • Standard flange drilling to EN1092-2 (ISO 7005-2), PN10
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