Dimension:
TECSON Ring Type Joints 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)
OCT 26.260
BS 1560

Materials:

Gasket Profiles:
	Type R, oval Standard Ring Joint Gasket oval section, for flange with standard Ring Joint grooves.
	Type R Octagonal Standard Ring Joint Gasket octagonal section, for flanges with standard Ring Joint grooves.
	Type RX Ring Joint Gaskets for pressure up to approx. 700 bar. With this type the outer sealing surface makes the first contact with the flanges. A higher system pressure produces a higher seating stress.Ring Joint Gaskets for RX type are interchangeable with the standard R type.
	Type BX Ring Joint Gaskets for very high pressures (upto approx. 1500 bar).  BX gaskets are self-energized by the internal system pressure which increases the gasket seating stress on the flange contact surface. This Ring Joint is only suited for API-type BX flanges and grooves.

Protective Coating:

Soft iron and low carbon steel ring joint gaskets to API Standard 6A are supplied with Zinc Coating to 0.0002"- 0.0005" thick unless otherwise specified. 

Other available protective coating include:

Xylan/PTFE

Cadmium

Silver

Uncoated rings are treated with a rust preventative fluid.