AVK SUPA MAXI™ STRAIGHT COUPLING, PN10
For gas, universal and tensile, NBR sealings, DN50-400
Contact
AVK International A/S
Bizonvej 1, Skovby, 8464 Galten, Denmark
Supa Maxi™ straight coupling - universal & tensile - A2 bolts / A4 nuts for gas -10°C to +60°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 PN 10. Supa Maxi™ couplings are very easy to mount with the possibility of ±4° angular deflection, the permanent protection caps, the lifting eye and the fact that they are tightened from the sleeve side with no need for re-tightening the bolts.| Variant 631/70-004 | |
|---|---|
| Connection: | Supa Maxi™ Coupling |
| Material: | Ductile Iron |
| DN: | DN50 - DN400 |
| PN: | PN10 |
Features
- Patented SupaGrip™ sealing support system with flexible bracket ensures full support of the gasket even at minimum pipe size
- Full tensile strength on all pipes is ensured by two different metal grip segments - every other of gunmetal for PE/PVC and of hardened stainless steel for cast iron/ductile iron/steel 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 10
- Large tolerance ranges
- All DNs are for 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 NBR rubber approved by Gastec
- Bolts of A2 and nuts of A4 are anti-friction coated to prevent galling
- Permanent protection caps protect the coupling during handling and installation. They are yellow to indicate gas.
- 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 DN 100-400
- Working pressure max. 10 bar. Max. test pressure according to pipe standard
Downloads
Reference nos. and dimensions:
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| AVK ref. no. | DN mm |
Product PN Class |
Seal range SR1 mm |
L mm |
D mm |
Theoretical weight/kg |
|---|---|---|---|---|---|---|
| 631-071-70-2 | 50 | PN10 | 48-71 | 255 | 200 | 6.0 |
| 631-091-70-2 | 65 | PN10 | 69-91 | 265 | 226 | 7.0 |
| 631-106-70-2 | 80 | PN10 | 82-106 | 268 | 235 | 7.5 |
| 631-133-70-2 | 100 | PN10 | 104-133 | 289 | 268 | 11 |
| 631-161-70-2 | 125 | PN10 | 132-159 | 277 | 285 | 13 |
| 631-188-70-2 | 150 | PN10 | 159-188 | 314 | 340 | 16 |
| 631-227-70-2 | 200 | PN10 | 193-227 | 354 | 389 | 25 |
| 631-257-70-2 | 225 | PN10 | 224-257 | 390 | 437 | 30 |
| 631-301-70-2 | 250 | PN10 | 266-301 | 381 | 476 | 35 |
| 631-356-70-2 | 300 | PN10 | 314-356 | 438 | 545 | 45 |
| 631-442-70-2 | 400 | PN10 | 392-442 | 526 | 661 | 91 |
2D/3D drawings
Enquiry
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Components
| 1. | Nut | Stainless steel A4 |
| 2. | Bolt | Stainless steel A2 |
| 3. | Washer | Stainless steel A2 |
| 4. | Grip segment | Stainless steel / bronze CC491K |
| 5. | Gasket | NBR rubber |
| 6. | Sleeve | Ductile iron |
| 7. | Bracket | Cast steel |
| 8. | Protection cap | PE |
Standards
- Designed according to EN 969
