This appraisal is for a range of ARPOL Instal and Rep stainless steel flexible unrestrained couplings.
The couplings submitted for appraisal are manufactured from Grade 316 stainless steel casings, components and fasteners and incorporate an EPDM sealing gasket suitable for pressure and non-pressure applications for water supply and sewerage, with the following attributes:
- Size range: DN 150 to DN 1200.
- Standard widths: 95, 140, 200 and 300mm.
Allowable Operating Pressures: PN4 to PN35.
Instal couplings are considered as the standard coupling in the ARPOL range and are suitable for joining DI, AC, PVC, steel, PE, GRP and concrete pipes. Rep couplings are designed for repair applications and may be opened out to allow fitment around the pipe to be repaired. Rep 2 has two locks and Rep 3 has 3 locks.