RJT Unions (Ring Joint Type) consist of an RJT Male Part, Weld Liner, Seal and a Hex Nut or Slotted Nut.

RJT Unions are used for frequently dismantled sections of pipework or hosing because of their ability to be quickly disconnected. RJT’s are often used in wineries, breweries, dairy factories and other food and beverage manufacturing applications where hygienic unions are required.

When choosing between a Slotted or Hex Nut it comes down to the preference of the Engineer and ideally should stay consistent throughout the site.

Many Unions look similar, however the stepped seal sets the RJT Union aside. The stepped seal fills the small crevice where the liner and male part of the union overlap, hence why they are beneficial for the food and beverage industry. We have multiple seals available to suit the different temperatures and components of the Union.

RJT fittings are made to suit imperial (inch) tube sizes and are usually butt welded into place using sanitary practices. The Metal Company also supplies RJT to Tri Clover adapters, RJT to BSP Adapters and RJT to RapidPress Adapters. We have also got a range of fittings, valves & sight glasses pre welded with RJT unions ready to be used.