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Uni-Gib Couplings

Couplings & Clamps

Uni-Gib Couplings

The CIVILPIPES UNI-GIB Coupling is an unrestrained mechanical coupling that is suitable for use in potable water; non-potable water and wastewater pipelines.

The couplings can join most pipe materials and each size is designed to fit a range of outside diameters, and therefore ideal for joining PVC-O, PVC-M, PVC-U, GRP, DI, AC, and Steel pipelines.


AS/NZS 4998

Size Range

DN 80 - DN 600


PN16 (Water)


Ductile Iron (fusion coated AS/NZS 4158),
316 Stainless Steel,
EPDM seals

Temp Range

Max 60 deg C (Water)


Un-restrained mechanical joint


1.5 – 3 deg each end (Refer Data Sheet)


  1. Wedge shape seal design capable of joining a wide range of pipe materials and diameters; ideal for reducing stock levels.
  2. Corrosion resistant materials suitable for drinking water and wastewater applications.
  3. Lightweight barrel for ease of installation.
  4. Can be installed without disassembling which makes installation faster and easier.
  5. Captive bolt head for one spanner operation to simplify the assembly in the field.

Technical Documents