1 HP S281 Oil-Free Riser Mount Fire Protection Compressor

Ideal For Quiet Settings


  • Apartments

  • Churches

  • Nursing Homes
Product Number
S281R-LD
    Product Specs
  • 1 Horsepower
  • 3.8 CFM @ 10 PSI
  • Single
    Phase
  • 115
    Volts
  • Riser Mount or Wall Mount or Floor Mount
  • Standard pressure (40 psi): Fills a 313-gallon dry pipe system in 30 minutes
  • Low pressure (18 psi): Fills a 696-gallon dry pipe system in 30 minutes
  • Pre-action (10 psi): Fills a 1,253-gallon dry pipe system in 30 minutes
  • Pressure Switch: Adjustable 5-55 PSI / Factory Set at 10-20 PSI / Minimum Differential 5 PSI
  • 1/2" NPT Outlet
  • 14" x 13" x 14" (L x D x H)
  • 56 lbs Shipping Weight
  • ETL Listed for Fire Protection (UL Standard 1450 & CSA Standard C22.2 No. 68)
    Standard Features
  • IN STOCK

  • Digital AMD Gen-3 with Leak Detection™️ – Learn More

  • Appropriate for single-valve systems

  • Low vibration and whisper quiet – 56 dB

  • Compact and easy to install (Shorter than S261, fits same mounting bracket)

  • Includes mounting bracket, 30″ flex hose, and 4″ hose clamps

  • 1-year unit warranty

    The C-Aire S281R 1 HP Oil-Free Riser Mount Fire Protection Compressor is the successor to our S261 riser mount, delivering enhanced performance in a more compact, quieter, and easier-to-install package.

    Key Features

    • Powerful Performance: With 3.8 CFM @ 10 PSI, this 1 HP compressor delivers robust air supply for larger fire protection systems.
    • Whisper-Quiet Operation: At just 56 dB, the S281R is ideal for noise-sensitive environments such as hospitals, hotels, and commercial buildings.
    • Digital AMD Gen-3 with Leak Detection™: Our fully redesigned and upgraded air maintenance device allows you to set system pressure in seconds while monitoring system air leaks.
    • Patented Riser Bracket System: Features our industry-leading quick-mount system that allows for the fastest installation in the industry.
    • Oil-Free Technology: Ensures low maintenance requirements and long-term reliability without the need for regular oil changes.

    Installation Options

    The S281R offers versatile mounting options, including riser mount, wall mount, or floor mount. Each unit ships complete with our patented riser bracket system, 30″ flex hose, and 4″ hose clamps for quick and easy setup.

    Ideal Applications

    • New construction projects
    • Tight systems with minimal air leaks
    • Dry pipe fire sprinkler systems
    • Pre-action fire protection systems
    • Noise-sensitive environments

    Compliance and Certification

    • ETL Listed for Fire Protection (UL Standard 1450 & CSA Standard C22.2 No. 68)
    • NFPA 13 2025 Compliant: Certified for use in fire sprinkler system applications in the US and Canada.

    The C-Aire S281R represents our commitment to enhancing the fire protection industry through customer feedback, new technology, and industry trends. Experience the next generation of fire protection compressors with improved performance, easier installation, and whisper-quiet operation.

    1 Year Warranty

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