This appraisal covers PN16 rated DN 80 to DN 375 couplings with the capability to connect pipes with a range of outside diameters including Series 1 PVC and CIOD pipes. The end rings are manufactured from thermal bonded polymeric coated ductile iron and the barrels are manufactured from Grade 316 stainless steel

They are compatible with pipes manufactured from grey or ductile iron, steel, GRP, Series 1 and 2 PVC-U, PVC-M and PVC-O and asbestos cement. The couplings are not suitable for use with polyethylene pipe.

The Connect VPC unrestrained mechanical couplings product range included in this appraisal report meets the requirements of WSA PS – 270 Mechanical Couplings, Non-End Thrust Restraint for Pressure Applications – Water Supply and Sewerage and are therefore considered as ‘fit-for-purpose’.


Product categoryUnrestrained mechanical couplings
PA NumberPA 1728 Issue 2
Report holderClover Pipelines Pty Ltd
BrandConnect VPC
StandardAS/NZS 4998:2009 Bolted unrestrained mechanical couplings for waterworks purposes.
Publication date
Expiry date

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PA1728 Issue 2 WSAA Certificate - Clover - Connect VPC Mechanical Couplings-Final.pdf PDF