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AVK CENTRIC LUG BUTTERFLY VALVE, PN6/10/16

Loose EPDM liner for drinking water, with double acting pneumatic actuator, DN25-400

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- Lug 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 820/10-011
Material: Ductile iron/ 1.4408 disc
DN: DN25 - DN400
PN: PN16
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
820-0025-10-04020160005 25 PN16 PN10/16 30 101 51 110 215 92 154 3.1
820-0032-10-04020160005 32 PN16 PN10/16 30 101 51 110 215 92 154 3.1
820-0040-10-04020160005 40 PN16 PN10/16 33 108 54 130 235 92 154 3.7
820-0050-10-04020130005 50 PN10 PN10/16 43 116 72 135 240 92 154 4.9
820-0065-10-04020130005 65 PN10 PN10/16 46 131 82 150 255 92 154 5.7
820-0080-10-04020120005 80 PN 6 PN10/16 46 188 92 160 282 105 204 9.0
820-0100-10-04020120005 100 PN 6 PN10/16 52 219 102 180 302 105 204 11
820-0125-10-04020120005 125 PN 6 PN10/16 56 248 120 195 317 105 204 13
820-0150-10-04020120005 150 PN 6 PN10/16 56 274 133 210 345 119 241 15
820-0200-10-04020020005 200 PN 6 PN10 60 332 163 240 387 131 259 25
820-0250-10-04020020005 250 PN 6 PN10 68 402 196 279 466 159 333 40
820-0300-10-04020020005 300 PN 6 PN10 78 472 232 315 522 183 395 56
820-0350-10-04020020005 350 PN 6 PN10 80 520 257 330 556 201 423 73
820-0400-10-04020020005 400 PN 6 PN10 102 584 292 365 660 245 528 110
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), PN10/16
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