AVK CONCENTRIC FIXED LINER BUTTERFLY VALVE, PN10/16
EN1092 flanged, short EN558/13, DI body, duplex disc/pin/shaft, EPDM liner, ΔP 16bar, coating orange, bare shaft
Concentric butterfly valve for drinking water and neutral liquids to max. 70°C
AVK fixed liner, concentric butterfly valves feature an outstanding seating concept with the rubber injection moulded directly on the valve body forming a permanent bond. This eliminates the risk of deformation or dislocation of the liner making the valves suitable under vacuum conditions. The combination of the profiled disc edge and the excellent AVK rubber quality ensures maximum durability of the liner.
| Variant 75/20-010 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile iron |
| DN: | DN50 - DN450 |
| PN: | PN10/16 |
| Closing direction: | Clockwise to Close |
Features
- Bonded vulcanized liner of drinking water approved EPDM with an excellent compression set and ability to regain its original shape
- Streamlined disk with minimum flow resistance
- Profiled disk edge seals tightly with minimal deformation of the liner resulting in minimal wear and low operating torque
- Disk, shaft and cross pin of duplex 1.4462 stainless steel
- Shaft bearings of PTFE coated steel
- Top shaft seal: DN≤350: bronze bushing with two EPDM O-rings, DN≥400: EPDM O-ring in bushing fixed with counterbored screws of galvanized steel
- Bottom shaft seal: DN≤350: plug of galvanized steel with a copper seal ring, DN≥400: thrust bearing and ring of alubronze and an EPDM O-ring protected by a cover plate of galvanized steel
- Ductile iron body with 100μm orange epoxy coating
Downloads
Datasheet
Certificate(s)
Reference nos. and dimensions:
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| AVK ref. no. | DN mm |
Flange drilling |
L mm |
H1 mm |
H2 mm |
F mm |
F2 mm |
L5 mm |
Actuator flange |
Theoretical weight/kg |
|---|---|---|---|---|---|---|---|---|---|---|
| 75-0050-20-203005600000 | 50 | PN10/16 | 108 | 118 | 63 | 10 | 34 | 12 | 90 | 9.0 |
| 75-0200-20-203002600000 | 200 | PN16 | 152 | 204 | 158 | 16 | 34 | 14 | 90 | 32 |
| 75-0250-20-203002600000 | 250 | PN16 | 165 | 245 | 194 | 24 | 45 | 15 | 125 | 50 |
| 75-0350-20-203002600000 | 350 | PN16 | 190 | 315 | 256 | 24 | 45 | 15 | 125 | 95 |
| 75-0400-20-203002600000 | 400 | PN16 | 216 | 363 | 308 | 30 | 50 | 25 | 175 | 130 |
| 75-0450-20-203002600000 | 450 | PN16 | 222 | 388 | 334 | 30 | 50 | 25 | 175 | 150 |
Enquiry
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Components
| 1. | Shaft | Stainless steel 1.4462, duplex |
| 2. | Bushing | Bronze |
| 3. | O-ring | EPDM rubber |
| 4. | Body | Ductile iron GJS-400-15 |
| 5. | Bearing | Steel, PTFE coated |
| 6. | Conical pin | Stainless steel 1.4462, duplex |
| 7. | Disc | Stainless steel 1.4462, duplex |
| 8. | Shaft | Stainless steel 1.4462, duplex |
| 9. | Liner | EPDM rubber |
| 10. | Bearing | Steel, PTFE coated |
| 11. | Seal ring | Copper |
| 12. | Plug | Steel, galvanized |
| 13. | Screw | Steel, galvanized |
| 14. | Ring | Alu-bronze |
| 15. | O-ring | EPDM rubber |
| 16. | Thrust bearing | Alu-bronze |
| 17. | Cover plate | Steel, galvanized |
| 18. | Screw | Steel, galvanized |
Test/Approvals
- Hydraulic test according to EN 1074-1 and -2 / EN 12266
- Approved according to KIWA Certificate K 6070/08
- Approved according to WRAS certificate 2304025, WW butterfly valves
Standards
- EN 1074 part 1 & 2
- Face-to-face dimension according to EN 558, Series 13
- Flange drilling to EN1092, PN10/16
