AVK CENTRIC WAFER BUTTERFLY VALVE, PN6/10/16

Loose EPDM liner for high temperature, with double acting pneumatic actuator, DN25-900

Contact

AVK International A/S

Bizonvej 1, Skovby, 8464 Galten, Denmark

Centric butterfly valve with loose liner and double acting pneumatic actuator - Wafer for wastewater treatment and HVAC to max. 110° 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 820/00-012
Connection: Flanged
Material: Ductile iron/ 1.4408 disc
DN: DN25 - DN900
PN: PN16

Features

  • Ductile iron with long neck for insulation
  • Loose liner of EPDM for high temperatures 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).

Reference nos. and dimensions:

Close Download package
AVK ref. no. DN
mm
Product
PN Class
L
mm
L2
mm
H2
mm
W2
mm
W3
mm
W
mm
W1
mm
Theoretical
weight/kg
Notes 2D/3D drawings Enquiry
820-0025-00-02020160005 25 PN16 30 101 51 110 215 92 154 3.1
820-0032-00-02020160005 32 PN16 30 101 51 110 215 92 154 3.1
820-0040-00-02020160005 40 PN16 33 108 54 130 235 92 154 3.7
820-0050-00-02020130005 50 PN10 43 120 72 135 240 92 154 4.7
820-0065-00-02020130005 65 PN10 46 138 82 150 255 92 154 5.3
820-0080-00-02020120005 80 PN 6 46 142 92 160 282 105 204 6.9
820-0100-00-02020120005 100 PN 6 52 162 102 180 302 105 204 8.4
820-0125-00-02020120005 125 PN 6 56 189 120 195 317 105 204 10
820-0150-00-02020120005 150 PN 6 56 214 133 210 345 119 241 13
820-0200-00-02020120005 200 PN 6 60 270 163 240 387 131 259 18
820-0250-00-02020120005 250 PN 6 68 324 196 279 466 159 333 33
820-0300-00-02020120005 300 PN 6 78 378 232 315 522 183 395 46
820-0350-00-02020120005 350 PN 6 80 425 257 330 556 201 423 60
820-0400-00-02020120005 400 PN 6 102 475 292 365 660 245 528 92
820-0450-00-02060021005 450 PN 6 113 538 355 397 746 284 605 151
820-0500-00-02060021005 500 PN 6 126 595 393 437 817 319 710 203
820-0600-00-02060021005 600 PN 6 153 695 464 522 955 371 812 303
820-0700-00-02060021005 700 PN 6 168 800 503 565 1025 418 855 407
820-0800-00-02060021005 800 PN 6 190 908 577 627 1087 418 855 637
820-0900-00-02060021005 900 PN 6 204 1015 643 696 1294 528 950 703

Downloads

Datasheet (PDF)
Installation

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, high temp.
7. Disc Stainless steel 316

Test/Approvals

  • Hydraulic test according to EN 12266-1, P10/P12
  • Approved for wastewater / pressure test EN12266-1

Standards

  • Designed according to EN 593
  • Face-to-face dimension according to DIN/EN 558-1, series 20 (K1)
  • End connection to EN1092-2 PN 6/10/16, AS2129 TabD/E,ASME B16.1 CL150
0 Files In the package
Our website uses cookies for statistical analysis, to improve our website and serve you optimally. By visiting our website, you consent to our and third party use of cookies as described in our privacy and cookie policy.
Read more