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SUPA MAXI™ STRAIGHT COUPLING, PN16

Universal and tensile, A4 bolts, NBR sealings, DN50-800

AVK headquater in Skovby Galten, Denmark

Contact

AVK International A/S

Bizonvej 1, Skovby, 8464 Galten, Denmark

Supa Maxi™ straight coupling, universal and tensile with A4 bolts and nuts. For wastewater to max. 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 631/80-002
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 with exception for DN800, as the dimension is dedicated to give tensile strength on either metal/AC pipes or plastic pipes. See notes in reference table. 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 NBR 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

Datasheet
Environmental Product Declaration (EPD)
Installation, Operation & Maintenance
Animation
AVK Supa Maxi animation.mp4

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		 Notes
631-071-80-23 50 PN16 48-71 255 200 6.0
631-091-80-23 65 PN16 69-91 265 226 7.0
631-106-80-23 80 PN16 82-106 268 235 7.5
631-133-80-23 100 PN16 104-133 289 268 11
631-161-80-23 125 PN16 132-159 277 285 13
631-188-80-23 150 PN16 159-188 314 340 16
631-227-80-23 200 PN16 193-227 354 369 25
631-257-80-23 225 PN16 224-257 390 437 30
631-301-80-23 250 PN16 266-301 381 476 35
631-356-80-23 300 PN16 314-356 438 545 45
631-396-80-23 350 PN16 352-396 513 612 114
631-442-80-23 400 PN16 392-442 526 661 107
631-510-80-23 450 PN16 448-510 767 740 177
631-552-80-23 500 PN16 498-552 769 772 201
631-652-80-23 600 PN16 604-652 767 872 241
631-745-80-23 700 PN16 700-745 745 991 396 PN16 only for non-tensile // Tensile up to 16 bar
631-842-80-230004 800 PN16 800-842 740 1100 454 For metal/AC pipes // PN16 only for non-tensile // Tensile up to 10 bar
631-842-80-230005 800 PN16 800-842 740 1100 454 For metal/AC pipes (one end) and plastic pipes (other end) // PN16 only for non-tensile // Tensile up to 10 bar.
631-842-80-230006 800 PN16 800-842 740 1100 454 For plastic pipes // PN16 only for non-tensile // Tensile up to 10 bar
2D/3D drawings
Enquiry
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Components

1. Nut Stainless steel A4
2. Bolt Stainless steel A4
3. Washer Stainless steel A4
4. Grip segment Stainless steel / brass
5. Gasket NBR 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

Standards

  • Designed according to EN 14525
0 Files In the package