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Products > Pet Joint System Fittings
Product Description

PET-JOINT Compression Joint

HKS, PET-JOINT compression fitting is a new generation joining method which applied by a grooving machine to form a enlarged groove on the pipe, tighten screw nut with seal gasket. They have WRAS and WSD approval and done various testing in the laboratory approved by HOKLAS. They can join stainless steel tubes to BSEN10312-series1(BS4127) and BSEN 10312-series2 (BS3605), size available from 15mm to 54mm. Tubes and fittings are also available in 304 or 316 grades of stainless steel.


  1. Simplify the installation process, more efficiency
  2. Gear pattern design for easy install
  3. Gasket with patent design for 100% water tight
  4. Ring absorbs the vibration and tightens the screw nut
  5. Re-usable and minimize the scrap
  6. Environmental friendly



HKS, fittings are suitable for above ground and below ground usage and approved UK Water Regulation Advisory Scheme (WRAS).  The joint are sealed using a silicone gasket which comply with BS 6920 and the O-ring is NBR. Maximum working pressure is 40 bar.