AVK CENTRIC WAFER BUTTERFLY VALVE, PN6/10/16
Loose EPDM liner for high temperature, with electric actuator, DN25-900
Contact
AVK International A/S
Bizonvej 1, Skovby, 8464 Galten, Denmark
Centric butterfly valve with loose liner and electric actuator - Wafer 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 820/00-020 | |
|---|---|
| Material: | Ductile iron/ 1.4408 disc |
| DN: | DN25 - DN900 |
| 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
Reference nos. and dimensions:
Scroll for more info
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 820-0025-00-02020160008 | 25 | PN16 | 30 | 101 | 51 | 110 | 335 | 319 | 200 | 17 | |
| 820-0032-00-02020160008 | 32 | PN16 | 30 | 101 | 51 | 110 | 335 | 319 | 200 | 17 | |
| 820-0040-00-02020160008 | 40 | PN16 | 33 | 108 | 54 | 130 | 355 | 319 | 200 | 17 | |
| 820-0050-00-02020130008 | 50 | PN10 | 43 | 120 | 72 | 135 | 360 | 263 | 200 | 17 | |
| 820-0065-00-02020130008 | 65 | PN10 | 46 | 138 | 82 | 150 | 375 | 272 | 200 | 18 | |
| 820-0080-00-02020120008 | 80 | PN 6 | 46 | 142 | 92 | 160 | 385 | 274 | 200 | 18 | |
| 820-0100-00-02020120008 | 100 | PN 6 | 52 | 162 | 102 | 180 | 405 | 284 | 200 | 20 | |
| 820-0125-00-02020120008 | 125 | PN 6 | 56 | 189 | 120 | 195 | 420 | 298 | 200 | 22 | |
| 820-0150-00-02020120008 | 150 | PN 6 | 56 | 214 | 133 | 210 | 435 | 310 | 200 | 23 | |
| 820-0200-00-02020120008 | 200 | PN 6 | 60 | 270 | 163 | 240 | 465 | 381 | 200 | 27 | |
| 820-0250-00-02020120008 | 250 | PN 6 | 68 | 324 | 196 | 279 | 459 | 474 | 313 | 47 | |
| 820-0300-00-02020120008 | 300 | PN 6 | 78 | 378 | 232 | 315 | 495 | 549 | 313 | 58 | |
| 820-0350-00-02020120008 | 350 | PN 6 | 80 | 425 | 257 | 330 | 541 | 573 | 313 | 70 | |
| 820-0400-00-02020120008 | 400 | PN 6 | 102 | 475 | 292 | 365 | 649 | 714 | 462 | 121 | |
| 820-0450-00-02060021008 | 450 | PN 6 | 113 | 538 | 355 | 397 | 681 | 745 | 462 | 159 | 250 my PUR coating on body |
| 820-0500-00-02060021008 | 500 | PN 6 | 126 | 595 | 393 | 437 | 716 | 802 | 611 | 225 | 250 my PUR coating on body |
| 820-0600-00-02060021008 | 600 | PN 6 | 153 | 695 | 464 | 522 | 811 | 907 | 552 | 280 | 250 my PUR coating on body |
| 820-0700-00-02060021008 | 700 | PN 6 | 168 | 800 | 503 | 565 | 868 | 958 | 532 | 371 | 250 my PUR coating on body |
| 820-0800-00-02060021008 | 800 | PN 6 | 190 | 908 | 577 | 627 | 930 | 1012 | 532 | 601 | 250 my PUR coating on body |
| 820-0900-00-02060021008 | 900 | PN 6 | 204 | 1015 | 643 | 696 | 1010 | 1102 | 604 | 602 | 250 my PUR coating on body |
2D/3D drawings
Enquiry
Scroll for more info
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
- End connection to EN1092-2 PN6/10/16, AS2129 TabD/E,ASME B16.1 CL150