Cascade Liquid-Filled Fire Apparatus Panel Gauges provide clear, dependable pressure and vacuum readings for fire pump and apparatus applications. Their liquid-filled construction helps dampen pointer movement caused by vibration while providing stable, easy-to-read measurements in demanding fire-service environments. Available in 2-1/2 in. and 3-1/2 in. dial sizes, Cascade panel gauges are offered in pressure, compound, and vacuum configurations for monitoring discharge pressure, intake conditions, and other fire pump functions. FEATURES Liquid-filled design helps dampen vibration and pointer movement Durable Zytel nylon case 1/2 in. blowout plug Bright bezel construction with black bezel option 1/4 in. male NPT brass center-back connection KEM-X freeze-protection system Phosphor bronze Bourdon tube isolated from the water system by an internal diaphragm Acrylic lens Low-temperature fill rated for -40°F to 150°F service Aluminum dial with baked-enamel finish 1% full-scale accuracy — ANSI Grade 1A AVAILABLE CONFIGURATIONS DIAL SIZE GAUGE TYPE RANGE 2-1/2 in. Pressure 0–400 PSI 2-1/2 in. Pressure 0–600 PSI 2-1/2 in. Compound 30 in. Hg vacuum to 400 PSI 2-1/2 in. Compound 30 in. Hg vacuum to 600 PSI 2-1/2 in. Vacuum 0–30 in. Hg 3-1/2 in. Pressure 0–400 PSI 3-1/2 in. Pressure 0–600 PSI 3-1/2 in. Compound 30 in. Hg vacuum to 400 PSI 3-1/2 in. Compound 30 in. Hg vacuum to 600 PSI 3-1/2 in. Vacuum 0–30 in. Hg FIRE APPARATUS APPLICATIONS Pressure gauges are commonly used to monitor discharge pressure, while compound and vacuum gauges provide readings for intake and drafting conditions. Select the dial size, gauge type, and pressure range appropriate for the apparatus and installation. LIQUID-FILLED PERFORMANCE The liquid-filled case helps reduce pointer fluctuation caused by vibration and apparatus movement. KEM-X freeze protection isolates the internal pressure-sensing components from the water system to help protect against freezing, clogging, and corrosion.
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