AVK CENTRIC BUTTERFLY VALVE, DOUBLE FLANGED, PN10/16
Short, fixed NBR liner, duplex disc, FM approved, DN50-300
Contact
Michael Nielsen
Product & Project Manager, Fire Protection
Centric double flanged butterfly valve with fixed NBR liner and duplex disc, for fire protection applications to max. 90° C
AVK centric butterfly valves with fixed liner feature an outstanding seating concept. The rubber is injection moulded directly on the valve body forming a permanent bond. Consequently, there is no 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 75/20-023 | |
|---|---|
| Connection: | Flanged |
| Material: | Ductile Iron |
| DN: | DN50 - DN300 |
| PN: | PN16 |
Features
- Bonded vulcanized liner of NBR with an excellent compression set and thus ability to regain its original shape.
- Streamlined disc with minimum flow resistance.
- Profiled disc edge requires minimal deformation of the liner to achieve tight sealing, and results in less wear of the liner.
- Disc, shaft and conical pin of duplex steel.
- Shaft bearings of PTFE coated steel.
- Top shaft sealing consisting of a bronze bushing with two EPDM O-rings
- Bottom shaft sealing consisting of a plug of galvanized steel with a copper sealing ring
- Low torques as a result of the profiled disc edge and fixed liner design.
- Ductile iron body with 200 μ epoxy coating red RAL 3000.
Downloads
Reference nos. and dimensions:
| AVK ref. no. | DN mm |
Flange drilling |
L mm |
H1 mm |
H2 mm |
F2 mm |
L5 mm |
Actuator Flange |
Theoretical weight/kg |
Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| 75-0050-20-213002600204 | 50 | PN16 | 108 | 118 | 63 | 34 | 12 | 90 | 8.0 | Disc material in duplex |
| 75-0065-20-213002600204 | 65 | PN16 | 112 | 126 | 71 | 34 | 12 | 90 | 9.0 | Disc material in duplex |
| 75-0080-20-213002600204 | 80 | PN16 | 114 | 133 | 78 | 34 | 12 | 90 | 11 | Disc material in duplex |
| 75-0100-20-213002600204 | 100 | PN16 | 127 | 147 | 98 | 34 | 12 | 90 | 13 | Disc material in duplex |
| 75-0125-20-213002600204 | 125 | PN16 | 140 | 160 | 109 | 34 | 12 | 90 | 17 | Disc material in duplex |
| 75-0150-20-213002600204 | 150 | PN16 | 140 | 180 | 133 | 34 | 14 | 90 | 23 | Disc material in duplex |
| 75-0200-20-213001300204 | 200 | PN10 | 152 | 204 | 158 | 34 | 14 | 90 | 32 | Disc material in duplex |
| 75-0200-20-213002600204 | 200 | PN16 | 152 | 204 | 158 | 34 | 14 | 90 | 32 | Disc material in duplex |
| 75-0250-20-213001300204 | 250 | PN10 | 165 | 245 | 194 | 45 | 15 | 125 | 50 | Disc material in duplex |
| 75-0250-20-213002600204 | 250 | PN16 | 165 | 245 | 194 | 45 | 15 | 125 | 50 | Disc material in duplex |
| 75-0300-20-213001300204 | 300 | PN10 | 178 | 270 | 219 | 45 | 15 | 125 | 65 | Disc material in duplex |
| 75-0300-20-213002600204 | 300 | PN16 | 178 | 270 | 219 | 45 | 15 | 125 | 65 | Disc material in duplex |
Components
| 1. | Shaft | Duplex steel |
| 2. | Bushing | Bronze |
| 3. | O-ring | EPDM rubber |
| 4. | Body | Ductile iron GJS-400-15 (GGG-40) |
| 5. | Bearing | Steel, PTFE coated |
| 6. | Conical pin | Duplex steel |
| 7. | Disc | Duplex steel |
| 8. | Shaft | Duplex steel |
| 9. | Liner | NBR rubber |
| 10. | Bearing | Steel, PTFE coated |
| 11. | Seal ring | Copper |
| 12. | Plug | Steel, galvanized |
Test/Approvals
- Approved according to FM
Standards
- Face-to-face dimension according to EN 558 Table 2 Basic Series 13
- Standard flange drilling to EN1092-2 (ISO 7005-2), PN16
Use with this product
AVK SUPA® FLANGE ADAPTOR, PN16
Universal, A2 bolt/A4 nut deltaseal, NF approved EPDM sealing, DN40-400
