Straight Thread Reducers / Expander

Straight Thread Reducers and Expanders are essential components in fluid and gas handling systems, designed to connect two fittings or components of different thread sizes while maintaining a straight-threaded seal. Whether you’re downsizing or upsizing a port, these compact fittings ensure a secure, leak-free connection without the need for complex reworking or system redesign.

Manufactured from high-performance materials like Stainless Steel, Brass, Carbon Steel, and Alloy Grades, these reducers and expanders offer exceptional pressure and temperature resistance, making them ideal for harsh industrial environments. Their precision-machined threads ensure compatibility with NPT, BSPP, or other thread standards, streamlining installations across hydraulic, pneumatic, chemical, and instrumentation systems.

Whether you’re reducing a 1/2″ port to 1/4″, or expanding a 3/8″ fitting to 1/2″, these fittings offer adaptability with integrity—perfect for system retrofits, upgrades, or space-restricted designs. Available in a wide range of thread combinations and sizes, they help maintain system performance while enhancing flexibility.

Features

  • Size Adaptability: Easily connects components with different thread sizes without altering system layout.
  • Straight Thread Design: Provides a secure and precise connection with minimal risk of cross-threading.
  • Leak-Free Performance: Designed for high-pressure applications with optimal sealing surfaces.
  • Bidirectional Compatibility: Available in both reducer (larger to smaller) and expander (smaller to larger) configurations.
  • ️Versatile Thread Types: Supports NPT, BSPP, BSPT, UNF, and other common thread standards.
  • ️Wide Temperature & Pressure Range: Suitable for demanding environments, including hydraulic, pneumatic, and chemical systems.
  • ️Durable Material Options: Made from corrosion-resistant materials like Stainless Steel, Brass, and Carbon Steel.
  • Precision Machined: Ensures tight, reliable connections and easy installation.
  • Custom Sizes Available: Tailored sizes and configurations can be manufactured for special applications.

Technical Information

  • Material Options : SS 304, SS 316, SS 316L, Brass, Carbon Steel, Copper, Gunmetal . Bronze, other material on request
  • Thread Types : NPT, BSPT, BSPP, Metric Threads (on request)
  • Size Range : 1/8″ through 2″
  • Working Pressure: from 1000 to 7500 psi (or 69 to 517 bar)
  • Temperature Range: -40°C to 400°C (-40°F to 752°F)

Applications of Straight Thread Reducers / Expander

  • Hydraulic and pneumatic systems
  • Chemical and process industries
  • Industrial machinery and equipment
  • Automotive and heavy-duty vehicles
  • Maintenance and repair operations (MRO)