AVK SUPA MAXI™ STRAIGHT COUPLING, PN16

Universal and tensile, A2 bolts, EPDM sealings, DN50-600

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 A2 bolts / A4 nuts 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 PN 16. Supa Maxi™ couplings are easy to install as they offer +/-4 degree 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.

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Variant 631/00-001
Connection: Supa Maxi™ Coupling
Material: Ductile Iron
DN: DN50 - DN600
PN: PN16

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/stainless steel/GRP/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 PN16
  • Large tolerance ranges
  • All DNs are for PN16 (stainless steel, AC, Bi-PVC, and CFW GRP pipes max. PN10)
  • 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 of A2 and nuts of 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 DN100-600
  • DN50-600 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

 

Reference nos. and dimensions:

Close Download package
AVK ref. no. DN
mm
Product
PN Class
T
mm
L
mm
D
mm
Theoretical
weight/kg
Notes 2D/3D drawings Enquiry
631-071-00-6 50 PN16 48 - 71 255 200 6.0
631-091-00-6 65 PN16 69 - 91 265 226 7.0
631-106-00-6 80 PN16 82 - 106 268 235 7.5
631-133-00-6 100 PN16 104 - 133 289 268 11
631-161-00-6 125 PN16 132 - 159 277 285 13
631-188-00-6 150 PN16 159 - 188 314 340 16
631-227-00-6 200 PN16 193 - 227 354 389 25
631-257-00-6 225 PN16 224 - 257 390 437 37
631-301-00-6 250 PN16 266 - 301 381 476 35
631-356-00-6 300 PN16 314 - 356 438 545 45
631-396-00-6 350 PN16 352 - 396 513 612 114
631-442-00-6 400 PN16 392 - 442 526 661 107
631-510-00-6 450 PN16 448 - 510 767 740 177
631-552-00-6 500 PN16 498 - 552 769 772 201
631-652-00-6 600 PN16 604 - 652 767 872 241

Downloads

Datasheets
Certificate(s)
Tender Text
Installation

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 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 ACS-France
  • Belgaqua approved
  • Approved according to ÖVGW Certificate W 1.604
  • Approved according to SVGW Certificate No. 1205-6041

Standards

  • Designed according to EN 14525
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