BS 7993:2011
Twin ferrule connectors and associated tubing for 316 stainless steel systems. Specification and test methods

Standard No.

BS 7993:2011

Release Date

2011

Published By

British Standards Institution (BSI)

Latest

BS 7993:2011

Replace By

GMKOREA EDS-T-7782-2011

Scope

This British Standard specifies the characteristics of, and performance requirements for, the tube connector (compression) end(s) of twin ferrule connectors made of 316 stainless steel. It also specifies requirements for 316 stainless steel tubes. The twin ferrule connectors in this standard are suitable for use with annealed stainless steel tubes with outside diameters from 2 mm to 38 mm and 1/16 in to 2 in. This British Standard is applicable to twin ferrule connectors that are intended for the connection of plain end tubes to other tubes and to ports in accordance with BS EN ISO 6149-1, BS EN ISO 1179 and BS EN ISO 9974-1, and other ports agreed between the purchaser and manufacturer. It provides external envelope, tube-end-to-tube-end and tube-end-to-port dimensions that facilitate designing systems that use twin ferrule connectors. NOTE These twin ferrule connectors can also be used with other austenitic stainless steel tubes, typically 304, 316L, 321, etc.

BS 7993:2011 Referenced Document

• ASME B31.3 
• ASTM A182/A182M Standard Specification for Forged or Rolled Alloy-Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service
• ASTM A213/A213M-10 Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes*， 2024-04-19 Update
• ASTM A262 Standard Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
• ASTM A269-10 Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service*， 2024-04-19 Update
• ASTM A276 Standard Specification for Stainless Steel Bars and Shapes
• ASTM A351/A351M-10 Standard Specification for Castings, Austenitic, for Pressure-Containing Parts*， 2024-04-19 Update
• ASTM A632-04(2009) Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing (Small-Diameter) for General Service*， 2024-04-19 Update
• ASTM E140 Standard Hardness Conversion Tables for Metals Relationship Among Brinell Hardness, Vickers Hardness, Rockwell Hardness, Superficial Hardness, Knoop Hardness, and Scleroscope Hardness
• ASTM E18 Standard Test Methods for Rockwell Hardness of Metallic Materials*， 2022-05-01 Update
• BS 1580 Unified screw threads - Part 3:Screw threads with diameters below 1/4 in - Requirements
• BS 3643 ISO metric screw threads Part 2 : Specification for selected limits of size
• BS ISO 5598 Fluid power systems and components. Vocabulary*， 2020-11-12 Update

BS 7993:2011 history

• 2011 BS 7993:2011 Twin ferrule connectors and associated tubing for 316 stainless steel systems. Specification and test methods

BS 7993:2011 Twin ferrule connectors and associated tubing for 316 stainless steel systems. Specification and test methods was changed to GMKOREA EDS-T-7782-2011 Test Method for the Thickness of the Dried Film of Organo- Coated Products.