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RJT Union

RJT Coupling (RJT Male Part, RJT Liner, RJT Nut, RJT Gasket)

The RJT Union (Ring Joint Type) is comprised of an RJT round slotted nut, RJT male part, RJT liner, and RJT gasket. RJT blanks and blank nut with chains are also available.

The easiest way to identify an RJT Union is its O-ring Shape Gasket.

The RJT coupling is one of the least applied screw couplings. It is a coupling with an O-ring seal, which means that it does not shut big dead space off very well. This makes the coupling uneasy to clean in-line.

Coupling Material

RJT Nut in SS 304, RJT Male Part and Liner in SS 304 or SS 316L

Seal Material

The RJT gaskets comes in Teflon, BUNA, EPDM, Silicone, and Viton

Size Ranges

From 1” to 4”

Internal Surface Finish

< 1μm



To fasten the union by using a spanner.

RJT Male Part 

To be welded to tubes.

RJT Liner

To be welded to tubes.

RJT Gasket

Acts as a seal to prevent leakages.

RJT Blank / RJT Blind

Acts as a cover to to block flow, replaces an SMS Liner.

RJT Blank Nut with Chain

Acts as a cover to block flow, replaces an SMS Nut and Liner.

Malaysia RJT Union
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