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New S163, S253, & S418 Riser Mount Fire Protection Air Compressors

Our latest riser mount addition to the Whisper Quiet Series comes in three different configurations: S163, S253, & S418. The three models are only differentiated by the pressure switch presets, which are suited for specific dry pipe valves. The S163 model comes with a pressure switch set at 30-40 psi, which makes it compatible with all Standard Pressure Differential Dry Pipe Valves. Our S253 model is the perfect fit for Reliable’s DDX Low-Pressure Dry Pipe Valve due to its 23-28 psi preset pressure switch. The S418 model is specifically designed for Victaulic’s FireLock NXT Dry Pipe Valve with a pressure switch set at 13-18 psi. With their ultra-compact design and patented quick riser mount system, installation will be easier than ever. All three models are listed and NFPA 13 compliant for applications in the U.S. and Canada.


  • S163R

    • Pressure switch preset at 30-40 psi
    • Suitable for standard-pressure valves such as Tyco Dry Pipe Valves
    • Fills a 163-gallon dry pipe system in 30 minutes or less
  • S253R

    • Pressure switch preset at 23-28 psi
    • Suitable for Reliable’s DDX Low-Pressure Dry Pipe Valve
    • Fills a 253-gallon dry pipe system in 30 minutes or less
  • S418R

    • Pressure switch preset at 13-18 psi
    • Suitable for Victaulic’s FireLock NXT™ Dry Pipe Valve
    • Fills a 418-gallon dry pipe system in 30 minutes or less
  • In Stock!
  • ETL Listed
    • Conforms to UL Standard 1450 and Certified to CSA Standard C22.2 No. 68-92
    • Complies with NFPA 13
  • Whisper quiet – 54 dB
  • Ultra-compact design
    • 10” x 9.5” x 14”
    • 21 lbs.
  • Competitively priced
  • Oil-free and low maintenance
  • Low vibration
  • 5-minute installation
  • Versatile mounting to riser or wall
  • 12-month warranty

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