Stainless Steel Pipe Fittings

R – Style Oval Ring Joint Gaskets By yaang.com

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R - Style Oval Ring Joint Gaskets By yaang.com

Style R gaskets are manufactured in accordance with both API 6A and ASME B16.20 size/ratings. Available in both oval and octagonal configurations, both types are interchangeable on modern octagonal type grooved flanges.

R – Style Oval Ring Joint Gaskets can be manufactured in accordance with all relevant standards to suit the following flange designations: API-6A, ASME/ANSI B16.5, MSS SP44 (ASME B16.47 SERIES A) & BS 1560.

Oval Gaskets

Oval Ring Joing Gasket available in both oval and octagonal configurations, both types are interchangeable on modern octagonal type grooved flanges.

Tolerance: (mm):

Width of Ring — +/- 0.20;

Height of Ring — +/- 0.50;

Pitch Diameter — +/-0.18;

(Octagonal) Angle of 23o — +/- 0.5o

Ring joint gaskets are produced in several shapes and sizes to meet the most demanding applications.

  • R–Oval Ring Joint Gaskets Type: Standard ring joint gasket with oval cross section and designed to flanges with standard ring joint grooves.
  • R–Octagonal Ring Joint Gaskets: Standard ring joint gasket with octagonal Type cross section and designed for flanges with standard ring joint grooves. Interchangeable with oval section gaskets on modern octagonal grooved flanges.
  • Rx Ring Joint Gaskets: An adaptation of the standard R type gasket and designed to fit the same groove design. It is interchangeable with standard R type gaskets
  • BX Ring Joint Gaskets: Specially designed for very high pressures. All BX gaskets incorporate a pressure balance hole to ensure equalization of pressure which may get trapped in the grooves. It is only suited for API BX flanges and grooves.

Standard materials Of Ring Joint Gaskets

Standard Materials Recommended by the ANSI B16.20

ASTM DIN Material.No. Maximum HB Maximum HV Material code
Soft Iron 1.1003 90 56 D
Low CS 1.0038 120 68 S
4-6 Cr ½ Mo 1.7362 130 72 F5
         
AISI 410 1.4000 170 86 S 410
AISI 304 1.4301 160 83 S 304
AISI 316 1.4401 160 83 S 316
AISI 347 1.4550 160 83 S 347

Dimensions

STANDARDS for Ring Joint Gaskets Used with Flanges

Ring Joints Gaskets style Ring Joints Gaskets 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

Source: Zhejiang Yaang Pipe Industry Co., Limited (www.yaang.com)

Article Categories:
Stainless Steel

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