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Reactor 2 Low-Pressure Externally Heated Hose 3/8″ x 50FT

Ideal for plural-component spraying, the Graco Reactor 2 Low-Pressure Externally Heated Hose 3⁄8″ × 50 ft (24T839) delivers consistent heating, 2000 psi rating and RTD temperature sensing for top-tier performance.

Description

The Graco Reactor 2 Low-Pressure Externally Heated Hose 3⁄8″ × 50 ft (24T839) is specifically designed for use with the Reactor 2 plural-component proportioning systems, offering meticulous temperature control and durable construction for demanding spray-foam or coating applications. With a 3⁄8-inch (9.5 mm) inside diameter and 50-foot (15 m) length, it supports a maximum working pressure of 2000 psi (13.8 MPa). The hose utilises a multi-strand copper heating element, which provides up to ten times the flex life of previous flat copper designs and ensures long-term, even heating without hot spots. A built-in Resistance Temperature Detector (RTD) sensor supplies the most accurate material-temperature feedback and enables automatic shutdown if the sensor is damaged. The hose is covered with proprietary butyl material for isocyanate resistance, foam insulation for heat retention, and incorporates differentiated fitting sizes to avoid resin/isocyanate cross-connection. Backwards compatible with earlier Reactor heated hoses for flexible upgrade, including the Reactor 2 Low-Pressure Externally Heated Hose 3⁄8″ × 50 ft.
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Spray Foam Equipment Info & Resources

Technical Specifications

  • Compatible sprayer: Reactor 2 proportioner.
  • Hose heating type: externally heated.
  • Scuff-guard / jacket options: No Scuff version for part 24T839.
  • Inside diameter in millimetres: 9.525 mm.
  • The new multi-strand copper heating element provides up to ten times the flex life compared to previous flat copper designs.

Frequently Asked Questions

Service & Support

How does the RTD sensor integrate with my Reactor 2 unit — do I need firmware updates?

Yes, when using the Reactor 2 Low-Pressure Externally Heated Hose 3⁄8″ × 50 ft (24T839), the RTD (Resistance Temperature Detector) functionality is supported by Reactor 2 controls and may require the latest software to fully utilise resistance-control mode and the advanced temperature monitoring features.

Can this hose be used interchangeably with an internally heated hose or a different scuff guard version on the same system?

The hose is externally heated and is designed for use with external-heating port configurations; internally heated hoses are a different technology and cannot be mixed with externally heated hoses in one system.

How does the hose perform in cold ambient conditions, especially the No Scuff version vs the Xtreme-Wrap scuff guard version?

While the No Scuff version (24T839) offers high performance, choosing the Xtreme-Wrap version provides added protection against abrasion, moisture absorption and freezing in cold climates — which may be a key factor if operating in sub-zero ambient temperatures.
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