AVK SUPA MAXI™ STRAIGHT COUPLING, PN16
Universal and tensile, A4 bolts, EPDM sealings, DN50-800
Contact
AVK International A/S
Bizonvej 1, Skovby, 8464 Galten, Denmark
Supa Maxi™ straight coupling, universal and tensile with A4 bolts and nuts for drinking water and neutral liquids -10°C to +70°C
AVK’s Supa Maxi™ range of universal tensile couplings sets a new standard. The patented SupaGrip™ sealing support system with flexible bracket ensures full support of the gasket and tensile strength. Supa Maxi™ couplings are easy to install as they offer ±4° angular deflection in both ends, lifting eyes, and bolts tightened from the sleeve side with no need for retightening. The permanent protection caps protect the couplings during transport and installation.
| Variant 631/00-002 | |
|---|---|
| Connection: | Supa Maxi™ Coupling |
| Material: | Ductile Iron |
| DN: | DN50 - DN800 |
| PN: | PN16 |
Features
- Patented SupaGrip™ sealing support system with flexible bracket ensures full support of the gasket even at minimum pipe size
- Tensile strength on all pipes is ensured by two different metal grip segments - every second of brass for PE/PVC/GRP and of hardened stainless steel for cast iron/ductile iron/steel/stainless steel/asbestos cement pipes.
For PE pipes a support bush is to be used - ±4° angular deflection in both ends
- Large sealing ranges
- Ductile iron sleeve and bracket of cast steel with fusion bonded epoxy coating in compliance with DIN 3476 part 1 and EN 14901, GSK approved
- Gasket of drinking water approved EPDM rubber
- Bolts of A4 and nuts of A4 are anti-friction coated to prevent galling
- Permanent protection caps protect the coupling during handling and installation
- Large insertion depth tolerances allow for cutting the pipe slightly angled
- Bolts are tightened from the sleeve side for full access when space is limited
- Re-tightening of bolts is not necessary
- Lifting eye in DN100-800
Downloads
Reference nos. and dimensions:
| AVK ref. no. | DN mm |
Product PN Class |
Seal range SR1 mm |
L mm |
D mm |
Theoretical weight/kg |
Notes |
|---|---|---|---|---|---|---|---|
| 631-071-00-63 | 50 | PN16 | 48-71 | 255 | 200 | 6.0 | |
| 631-091-00-63 | 65 | PN16 | 69-91 | 265 | 226 | 7.0 | |
| 631-106-00-63 | 80 | PN16 | 82-106 | 268 | 235 | 7.5 | |
| 631-133-00-63 | 100 | PN16 | 104-133 | 289 | 268 | 11 | |
| 631-161-00-63 | 125 | PN16 | 132-159 | 277 | 285 | 13 | |
| 631-188-00-63 | 150 | PN16 | 159-188 | 314 | 340 | 16 | |
| 631-227-00-63 | 200 | PN16 | 193-227 | 354 | 389 | 25 | |
| 631-257-00-63 | 225 | PN16 | 224-257 | 390 | 437 | 30 | |
| 631-301-00-63 | 250 | PN16 | 266-301 | 381 | 476 | 35 | |
| 631-356-00-63 | 300 | PN16 | 314-356 | 438 | 545 | 45 | |
| 631-396-00-63 | 350 | PN16 | 352-396 | 513 | 612 | 114 | |
| 631-442-00-63 | 400 | PN16 | 392-442 | 526 | 661 | 107 | |
| 631-510-00-63 | 450 | PN16 | 448-510 | 767 | 740 | 177 | |
| 631-552-00-63 | 500 | PN16 | 498-552 | 769 | 772 | 201 | |
| 631-652-00-63 | 600 | PN16 | 604-652 | 767 | 872 | 241 | |
| 631-745-00-63 | 700 | PN16 | 700-745 | 745 | 991 | 396 | PN16 only for non-tensile // Tensile up to 16 bar |
| 631-842-00-630004 | 800 | PN16 | 800-842 | 740 | 1100 | 454 | For metal/AC pipes // PN16 only for non-tensile // Tensile up to 10 bar |
| 631-842-00-630006 | 800 | PN16 | 800-842 | 740 | 1100 | 454 | For plastic pipes // PN16 only for non-tensile // Tensile up to 10 bar |
Components
| 1. | Nut | Stainless steel A4 |
| 2. | Bolt | Stainless steel A4 |
| 3. | Washer | Stainless steel A4 |
| 4. | Grip segment | Stainless steel / brass |
| 5. | Gasket | EPDM rubber |
| 6. | Sleeve | Ductile iron |
| 7. | Bracket | Cast steel |
| 8. | Protection cap | PE |
Test/Approvals
- DN700 tensile up to 16 bar
- DN800 tensile up to 10 bar
- Approved according to KIWA Certificate K 66561
- Approved according to SVGW Certificate No. 1205-6041
Standards
- Designed according to EN 14525
