Thermoplastic Flange Spacers

A Reducing Ring Spacer is a precision-machined thermoplastic flange spacer designed to transition between two different pipe sizes while maintaining a full open bore. This configuration allows for diameter reduction without disrupting flow or altering flange alignment, making it ideal for lined-pipe systems requiring smooth transitions.

Reducing Ring Spacer

Overview

SG-P manufactures Reducing Ring Spacers to exact lined-pipe flange specifications, ensuring dimensional accuracy, chemical resistance, and long-term reliability in corrosive and non-metallic piping environments.

What Is a Reducing Ring Spacer Used For?

Reducing Ring Spacers are used when piping systems require a change in internal diameter while preserving uninterrupted flow and proper flange spacing. They provide a clean, non-metallic transition solution without the need for additional reducers or fittings.

Typical uses include:

  • Transitioning between different pipe diameters
  • Maintaining full flow through the piping system
  • System retrofits and piping modifications
  • Correcting size mismatches between connected lines
  • Lined-pipe installations requiring corrosion resistance
Reducing Ring Spacer

Applications and Industries

  • Chemical & Petrochemical Processing: diameter transitions in corrosive process lines
  • Water & Wastewater Treatment: system upgrades and piping adjustments
  • Power Generation & Utilities: retrofit and maintenance modifications
  • Pharmaceutical & Bioprocessing: sanitary piping transitions
  • Marine & Offshore Systems: corrosion-resistant diameter reductions

Thermoplastic Material Options

  • Polypropylene (PP): Lightweight, cost-effective, and chemically resistant
  • PTFE (Teflon®): Exceptional resistance to aggressive chemicals and high temperatures
  • PVDF (Kynar®): Flame-resistant, UV-stable, and suitable for harsh environments

All spacers are manufactured to lined-pipe flange dimensions and available in standard and custom size combinations.

Reducing Ring Spacer

Design Features

  • Precision-machined reducing bore for smooth diameter transition
  • Ring-style design maintains uninterrupted flow
  • Manufactured to lined-pipe flange dimensions
  • Corrosion-resistant, non-conductive construction
  • Smooth sealing faces for optimal gasket contact
  • Available in standard and custom size combinations

Why Choose SG-P Reducing Ring Spacers?

  • Over 50 years of thermoplastic fabrication expertise
  • In-house machining ensures tight tolerances
  • Custom diameter combinations and thicknesses available
  • Fast turnaround for maintenance and retrofit projects
  • Complete line of thermoplastic flange spacers for lined-pipe systems

Request a Quote or Custom Configuration

Need a Reducing Ring Spacer for your lined-pipe system? SG-P offers made-to-order spacers in a wide range of materials, size reductions, and thicknesses to meet your exact specifications.

Request a Quote