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AVK CENTRIC LUG BUTTERFLY VALVE, PN6/10/16

Loose EPDM liner for high temperature, with electric 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 electric actuator - Lug for wastewater treatment and HVAC to max. 130° 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 820/10-020
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 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 an electric actuator 3 x 400V/50 Hz. ON / OFF, 20 to 30 manoeuvres per day on an average. Motor duty cycle S4-30% - 360 starts/h max. Adjustable mechanical end stops +/- 2°. Two travel limit switches for open (one) & close (one) plus two extra limit switches.Two torque switches in opening (one) & closing (one) (except OA, has no torque switch). Temperature range: Standard -20°C to +70°C. Standard protection - OA, AS, BS: IP 67 standard paint - OA, AS, BS: Epoxy 80 microns RAL 5002. Standard heater resistance (230 V). Standard cable entries - without control: 2 x M20 / with integrated controls: 3 x M20 (cable glands supply on request).

Downloads

Datasheet
Installation
Appendix
Animation
AVK_Centric_butterfly_valve.mp4

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
820-0025-10-02020160008 25 PN16 PN10/16 30 101 51 110 335 319 200 17
820-0032-10-02020160008 32 PN16 PN10/16 30 101 51 110 335 319 200 17
820-0040-10-02020160008 40 PN16 PN10/16 33 108 54 130 355 319 200 17
820-0050-10-02020130008 50 PN10 PN10/16 43 116 72 135 360 261 200 17
820-0065-10-02020130008 65 PN10 PN10/16 46 131 82 150 375 269 200 18
820-0080-10-02020120008 80 PN 6 PN10/16 46 188 92 160 385 297 200 20
820-0100-10-02020120008 100 PN 6 PN10/16 52 219 102 180 405 313 200 23
820-0125-10-02020120008 125 PN 6 PN10/16 56 248 120 195 420 327 200 24
820-0150-10-02020120008 150 PN 6 PN10/16 56 274 133 210 435 340 200 25
820-0200-10-02020020008 200 PN 6 PN10 60 332 163 240 465 412 200 34
820-0250-10-02020020008 250 PN 6 PN10 68 402 196 279 459 513 313 54
820-0300-10-02020020008 300 PN 6 PN10 78 472 232 315 495 596 313 68
820-0350-10-02020020008 350 PN 6 PN10 80 520 257 330 541 620 313 83
820-0400-10-02020020008 400 PN 6 PN10 102 584 292 365 649 768 462 139
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, 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 EN 558 - Series 20
  • Standard flange drilling to EN1092-2 (ISO 7005-2), PN10/16
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