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Duff-Norton Adds 1-1/4” Size to Popular DWA Series Rotary Unions™

Reliable, cost-effective Rotary Unions maximize uptime and deliver superior lifetime value

Duff-Norton is expanding its family of best-selling DWA Rotary Unions with the introduction of our new 1-1/4” NPT threaded models. The new models join the existing line of ½” to 2” NPT, BSP, and BSPP threaded DWA Rotary Unions, following numerous requests from satisfied customers. The new 1-1/4” models, like the existing sizes, offer unsurpassed value by delivering unbeatable performance at a competitive price. The DWA Series’ robust design incorporates:

  • Silicon carbide/carbon graphite seal faces to ensure long service life
  • High-precision ball bearings to provide smooth running and long life, even at high speeds
  • Internal bearing protection and vented body to prevent lubricant washout—no need to lubricate, ever
  • Maintenance-free design—install and forget

The entire DWA Series, including new 1-1/4” models, is rated for applications up to:

  • 1750 rpm (1750 – 3500 rpm: reduce pressure rating by 20%)
  • 200 psi (2” models only: 180 psi)
  • 158°F (159 - 212°F: reduce pressure rating by 15%)
  • Suitable for water, oils, and all non-corrosive fluids, including hydraulic fluid

Get more information about Duff-Norton DWA Series, and our full line of Rotary Unions. (CTA)

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