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Nickel-plated brass elbow rotary union with stainless steel internals, 1.77 in long

Mosmatic

Mosmatic 40.032 Rotary Union Brass Stainless Steel 30 RPM 200°F 1.77 in

SKU CH-VXDB-N11MM

Brass and stainless-steel rotary union rated for 30 RPM and 200 °F with 1.77 in overall length

  • Single-flow design simplifies fluid routing
  • Brass body with nickel-plated finish resists corrosion
  • Stainless steel 304 internal components withstand wear
  • Rated for 30 RPM continuous rotation
  • Operates up to 200 °F maximum temperature

Brass Swivel for Low-Speed Lines

The Mosmatic 40.032 is a single-passage rotary union built for equipment that needs a 3/8-inch NPTF-to-NPTM elbow connection while the hose or lance rotates at up to 30 RPM. Its C38500 brass body and 304 stainless internal parts handle hot water up to 200 °F in pressure-washing or fluid-transfer tasks.

Nickel-Plated Brass and 304 Stainless Internals

The external nickel plating resists corrosion from chemicals and weather, while the plain-finish 304 stainless core maintains a clean flow path and resists galling during slow, continuous rotation. This material pairing means the swivel survives repeated thermal cycles without seizing or contaminating the fluid.

30 RPM and 200 °F Operating Envelope

The union is rated for a maximum of 30 revolutions per minute and 200 °F, so it suits low-speed reel or boom applications but not high-speed spinner heads or steam lines. Builders needing faster rotation, multi-passage flow, or higher temperature ratings must select a different model.

Highlights

  • Single-flow design simplifies fluid routing
  • Brass body with nickel-plated finish resists corrosion
  • Stainless steel 304 internal components withstand wear
  • Rated for 30 RPM continuous rotation
  • Operates up to 200 °F maximum temperature

Specifications

BrandMOSMATIC

Questions about this item

Will the stainless-steel 304 internal components need replacement after extended use?

The internal parts are grade 304 stainless steel, which resists corrosion and wear far longer than plain steel under normal operating conditions.

At 30 RPM continuous rotation, does the brass C38500 housing become the limiting factor?

The brass housing is rated for the full 30 RPM maximum speed, so it will not become the first limit if the union is kept within that speed and temperature range.

How much heat does the nickel-plated brass body generate when running all day at 200 °F?

The union is designed to operate continuously at up to 200 °F; the nickel-plated brass body dissipates heat effectively without adding measurable temperature rise to the fluid stream.

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