republic of south africa RX Series

Product Description

Metallic ring joint gaskets are heavy duty High pressure gaskets largely used in Offshore petrochemical applications. They are precision-engineered components designed to be used in conjunction with Precision machined flanges. Our entire ring Joints are manufactured to ASME B16.20 and API 6A. 


The gasket material is selected on a number of grounds primarily, chemical compatibility with media and hardness of the flange. The gasket material ideally needs to be roughly 30 Brinell less than the flange material to ensure sufficient deformation of the gasket without damaging the flange facing. 

 

Common Material

Material availability & technical information from API & solid metal ring joints

Material

Brinell Hardness

Temperature ºC

Identification

Soft Iron

90

-60 +500

D

Low Carbon Steel

120

-40 +500

S

4%-6% Chrome ½% Mo

130

-125 +500

F5

SS 304

160

-250 +500

S304

SS316

160

-110 +550

S316

SS 321

160

-250 +550

S321

SS 347

160

-250 +550

S347

SS 410

170

-20 +500

S410


 

Metal Ring Joint gasket Type RX

The RX metal ring joint gaskets are manufactured according to ASME B 16.20:1998 and PAI 6A.

The type RX series is of higher steength materials designed primarily for well-head pressures of 700 bar and beyond.

Type RX pressure-energized ring gaskets-according to ASME B16.20:1998 and API 6A