AVK SUPA MAXI™ STRAIGHT COUPLING
Universal Tensile Connection, PN16, DN50-DN800
Contact
AVK Australia Civil
559A Grand Junction Road Wingfield SA 5013 Sales and Technical enquiry
Supa Maxi™ straight coupling, universal tensile connection with A4 fasteners and EPDM seals, for drinking water and neutral liquids -20°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 full tensile strength on all pipe types up to PN16. Supa Maxi™ couplings are easy to install as they offer ±4° angular deflection in each end, 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 - DN700 |
| 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 other 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.
- Metal grip segments are mounted with pins for maximum durability
- ±4° angular deflection on each side at max. 1.5 x PN 16
- Large tolerance ranges
- All DNs are for PN 16 (stainless steel, AC, Bi-PVC, and CFW GRP pipes max. PN 10)
- Ductile iron body and bracket of cast steel, fusion bonded epoxy coating in compliance with DIN 3476 part 1 and EN 14901, GSK approved
- Gasket of drinking water approved EPDM rubber
- Bolts and nuts of acid-resistant stainless steel A4 are anti-friction coated to prevent galling
- Permanent protection caps protect the coupling during handling and installation
- The pipe will not move inwards when tightening
- 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
- DN50-800 are designed for PN16 (1.5 x 16 = 24 bar). DN50-300 are tested and approved for PN16 by KIWA according to EN 14525, and for DN350-600 KIWA EN 14525 approval is pending
Downloads
Reference nos. and dimensions:
| AVK ref. no. | DN mm |
Product PN Class |
Seal range mm |
L mm |
D mm |
Theoretical weight/kg |
|---|---|---|---|---|---|---|
| 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 |
Components
| 1. | Nut | Stainless steel A4 |
| 2. | Bolt | Stainless steel A4 |
| 3. | Washer | Stainless steel A4 |
| 4. | Grip segment | Stainless steel / bronze CC491K |
| 5. | Gasket | EPDM rubber |
| 6. | Sleeve | Ductile iron |
| 7. | Bracket | Cast steel |
| 8. | Protection cap | PE |
Test/Approvals
- Approved according to KIWA Certificate K 66561
- Approved according to SVGW Certificate No. 1205-6041
Standards
- Designed to: EN 14525
