Products / Metal Ring Joint

Metal Ring Joint Metal Ring Joint

Metal Ring Joint Metal Ring Joint Metal Ring Joint Metal Ring Joint


Metal Ring Joint


-  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.

 

 

 

  R Series NPS
Class Ratings
Oval
•    The original ring joint design.
•    Used to standard ring joint flat bottom groove flanges.
•    Can be used on older round bottom groove flanges.
•    Available in ring no. R11 to R105.
½”-24”   
26”-36”   
26”-36”   
1½”-20”   
150-2500 ANSI B16.5 & BS1560
300-600 MSS SP44 & BS3293
900 MSS SP44
API 6A Spec.
  R Series NPS Class Ratings
Octagonal
•    Modified oval joint ring to provide better sealing performance.
•    Used to standard ring joint flat bottom groove flanges.
•    Available in ring no. R11 to R105.
½”-24”
26”-36”
26”-36”
1½”-20”
 
150-2500 ANSI B16.5 & BS1560
300-600 MSS SP44 & BS3293
900 MSS SP44
API 6A Spec.
  RX Series NPS Class Ratings
•    Proved a pressure energized seal.
•    Used on standard ring joint flat bottom groove flanges.
•    Available in ring no. RX20 to RX215.
 
1½”-20” 720-5000 API Flanges
Fully interchangeable with R Series
 of identical ring no.
  BX Series NPS Class Ratings
•    Used in special applications involving high pressure from 5000 psi to 20000 psi.
•    Provides a pressure energized seal.
•    Not recommended for re-use.
•    Available in ring no. BX150 to BX172.
1-11/16”-21-1/4” 5000-20000 API Flanges

 

Common Material

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

Material

Brinell Hardness

Temperature Limits 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

Other materials: Monel, copper, brass, aluminum, Inconel, titanium etc. others available on request.