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. 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 820/00-012 | |
|---|---|
| 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 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
Reference nos. and dimensions:
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| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 820-0025-00-02020160005 | 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 | 250 my PUR coating on body |
| 820-0500-00-02060021005 | 500 | PN 6 | 126 | 595 | 393 | 437 | 817 | 319 | 710 | 203 | 250 my PUR coating on body |
| 820-0600-00-02060021005 | 600 | PN 6 | 153 | 695 | 464 | 522 | 955 | 371 | 812 | 303 | 250 my PUR coating on body |
| 820-0700-00-02060021005 | 700 | PN 6 | 168 | 800 | 503 | 565 | 1025 | 418 | 855 | 407 | 250 my PUR coating on body |
| 820-0800-00-02060021005 | 800 | PN 6 | 190 | 908 | 577 | 627 | 1087 | 418 | 855 | 637 | 250 my PUR coating on body |
| 820-0900-00-02060021005 | 900 | PN 6 | 204 | 1015 | 643 | 696 | 1294 | 528 | 950 | 703 | 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, 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