RJT Union | BS4825

RJT (also known as Ring Joint Type) is a British Standard union, often used across a wide range of hygienic processing industries, including Food & Dairy, Beverages, AI Cooling, Direct Air Capture, Brewing and Cosmetics.

RJT unions are comprised of 4 parts:

• Hexagon Nut
• Pressed or Machined Liner
• Weld Male
• Hygienic Rubber Seal (Nitrile as standard)

All wetted parts are grade 316 stainless steel, whilst the nut is 304.

RJT is a very forgiving union and is easy to install. It is well suited to applications that require regular dismantling.

Alongside our weld range of RJT we keep an extensive range of Expand Fittings from 1” to 4”.

Product Specifications

• RJT Unions to suit sizes 1” to 6”.
• Nitrile Joint Ring supplied as standard.
• Variations from stock in NBR, EPDM, Viton, Silicone, PTFE and Metal Detectable.
• Manufactured to BS4825 for hygienic applications.
• All seals are certified to EU1935:2004 regulations or FDA.

Unsure which material is best suited?

Click here to view our Rubber Performance Chart  or Seal Performance Chart.