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Home > Sealing Gasket > API Metal Machined Ring Joint Gaskets for Pipe

API Metal Machined Ring Joint Gaskets for Pipe

  • BKG330
  • BANDAK

Product details

API Ring Joint Gasket is machined from variety types forged solid metal such as Soft Rron,ANSI304,ANSI316,

Low carbon and alloy metals(including alloy825,alloy625,Duplex,Monel etc).  it is designed for high pressure and temperature applications by selecting suitable shape and material. Ring joint gasket assemblie seal by an initial line contact or an edging action as the compressive forces are applied. The hardness of the ring should always be 20-30HB less than the flanges hardness to prevent flange deformation. Dimensions for standard ring joint gasket and grooves are covered in ASME B16.20 and API 6A, API 17D and ASME B16.5/B16.20.


API Ring Joint Gasket main including the following kinds:


A R type Oval Ring Joint Gakset

Ring joint gasket with oval cross section was initially developed for high temperature and pressure application

and still used in the old type round bottom groove today.


B R type Octagonal Ring Joint Gakset

Ring joint gasket with Octagonal cross section is prefered by morden grooved flanges and has a higher sealing

efficiency than oval types.


Both R ring type joints are designed to seal pressure up to 6,250 psi in accordance with ASME B16.5 pressure

ratings and up to 5,000 psi in accordance with API 6A pressure ratings.


C RX Ring Joint Gakset

RX is used at pressures up to 15,000 psi (103 MPa). it is made to API 6A and interchangeable with standard

Octagonal rings, it can take advantage of container fluid pressure well to effect a seal.


D BX Ring Joint Gakset

All BX gaskets incorporate a pressure balance hole to ensure equalization of pressure which may be trapped in

the grooves,it is only be used in API 6BX flanges. BX is used at pressures up to 15,000 psi.

IX and AX special types are also availablein special applications.


API Ring Joint Gasket Specifications:

1)To API 6A, ASME B16.20 standard.

2)R Series, RX,BX,IX,AX types are available

3)To Fit ASME, BS and DIN flanges.



API Ring Joint Gakset Material Technical Specifications:


Material

Identification

Max Hardness

Soft Iron

D

90

Low Carbon Steel

S

120

5Cr0.5Mo

A182-F5

130

SS304

SS304

160

SS316

SS316

160

SS316L

SS316L

150

SS321

SS321

83

SS347

SS347

83

SS410

SS4109

86

Alloy 625

INC 625

89

Alloy 825

INC825

92


API RING JOINT GASKET DIMENSION:


Standards for Ring Joints Gaskets used with flanges

RTJ Style

RTJ standard

Flange standard

R

ASME B 16.20

API 6A

ANSI B 16.5

ANSI B 16.47 Series A

RX

ASME B 16.20

API 6A

API 6B

BX

API 6A

API 6BX



API Ring Joint Gasket are manufactured in accordance with relevant standards (such as ASME B16.20 API 6A, etc) to suit different flange applications.


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