Galvanised Steel ASA/ANSI 150

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Useful Information

Technical Specification

  • Material: Galvanised Steel
  • Sizes: 1/2" to 8"
  • Flange Standard: ASA/ANSI Class 150
  • Standards:
    • WRAS approved
    • BSI Kitemark-certified

Description

This mild steel backing ring is designed for use with PVC or ABS stub flanges to form secure bolted connections within ASA 150 flanged pipe systems. The backing ring provides the mechanical strength required to withstand bolting forces, while the stub flange creates the sealing face when used with compatible gaskets and bolt sets.

Manufactured from mild steel with a protective coating, the backing ring offers durability and rigidity for pressure-rated flange assemblies. Its rotating design allows for easier bolt alignment during installation, helping to reduce fitting time and improve efficiency on site. ASA 150 backing rings are commonly used in industrial pipework installations, including water treatment, chemical processing, manufacturing, and general process systems where American-standard flange patterns are specified.

Key Features & Benefits

  • Mild steel construction: Provides strength and stability for flanged joints.
  • ASA 150 compatible: Designed to suit American standard flange drilling patterns.
  • Rotating design: Allows easier bolt alignment during installation.
  • Protective finish: Helps improve durability in industrial environments.
  • System component: Intended for use with PVC or ABS stub flanges and flat gaskets.

IMPORTANT: The technical data given on this website is for preliminary information purposes only and is published without guarantee. All line drawings are for illustrative purposes only and should not be regarded as wholly accurate in every detail. We reserve the right to withdraw or to alter the specification of any product without notice. For more information, please consult our Terms of Business.

If you require any further information, our excellent customer service team is here to help so please call us on 01794 835835.

 

Grouped product items
Code Product Name List Price You Save You Pay Quantity
354942 Steel Backing Ring Drilled ANSI 150 1/2" £36.06 70%
You Pay:  £10.82
354943 Steel Backing Ring Drilled ANSI 150 3/4" £37.10 70%
You Pay:  £11.13
354944 Steel Backing Ring Drilled ANSI 150 1" £41.77 70%
You Pay:  £12.53
354945 Steel Backing Ring Drilled ANSI 150 1 1/4" £42.45 70%
You Pay:  £12.74
354946 Steel Backing Ring Drilled ANSI 150 1 1/2" £52.41 70%
You Pay:  £15.72
354947 Steel Backing Ring Drilled ANSI 150 2" £73.86 70%
You Pay:  £22.16
354948 Steel Backing Ring Drilled ANSI 150 2 1/2" £101.52 70%
You Pay:  £30.46
354949 Steel Backing Ring Drilled ANSI 150 3" £111.80 70%
You Pay:  £33.54
354950 Steel Backing Ring Drilled ANSI 150 4" £145.45 70%
You Pay:  £43.64
354951 Steel Backing Ring Drilled ANSI 150 6" £239.85 70%
You Pay:  £71.96
354952 Steel Backing Ring Drilled ANSI 150 8" £456.05 70%
You Pay:  £136.82