195 PSI Dry Chemical Gauge

This 195 PSI dry chemical pressure gauge is a replacement gauge for stored-pressure dry chemical fire extinguishers that operate at 195 PSI nominal working pressure. Several extinguisher families use 195 PSI as their standard operating pressure, including the Badger Advantage 5 lb, 10 lb, and 20 lb models and other comparable stored-pressure dry chemical units. The gauge allows an inspector or technician to verify at a glance that the extinguisher is holding its charge within the acceptable green-zone range during monthly visual inspections.

When replacing a gauge on a dry chemical extinguisher, confirm the replacement gauge is rated and color-coded for the specific operating pressure of the extinguisher it will serve. A gauge calibrated for 195 PSI operating pressure is not interchangeable with gauges calibrated for 100 PSI units, as the green-zone markings are calibrated to different pressure ranges. Gauge replacement on a stored-pressure extinguisher should be performed by a certified fire equipment technician during annual service or 6-year internal maintenance.

• Replacement During Annual Service: Replacing a damaged or sticky gauge on a 195 PSI stored-pressure dry chemical extinguisher during scheduled annual maintenance.
• Post-Hydrostatic Test: Replacing the gauge after a 12-year hydrostatic test, where the valve and gauge are typically removed and reinstalled or replaced.
• Damaged Gauge Replacement: Replacing a cracked lens, stuck needle, or otherwise unreadable gauge that fails monthly inspection criteria.

• Confirm Operating Pressure Match: Before installing this gauge, confirm the extinguisher it is replacing a gauge on is a 195 PSI unit. Check the extinguisher's specification label or the manufacturer's parts list for the correct replacement gauge part number.
• Certified Technician Required: Gauge replacement on a pressurized extinguisher must be performed by a certified fire equipment technician, as it involves working with the valve assembly of a pressurized cylinder.
• OEM vs. Aftermarket: Where possible, use the manufacturer's specified replacement gauge to ensure the green zone markings align correctly with the specific unit's acceptable operating pressure range. Aftermarket gauges with the same maximum pressure may have green zones in different positions.
• Monthly Visual Inspection: After installation, confirm the gauge reads in the green zone and the needle moves freely as part of the next scheduled monthly inspection.

Why is the pressure rating on this gauge different from the 100 PSI gauge?

Different extinguisher types operate at different nominal pressures. Standard stored-pressure ABC dry chemical extinguishers typically operate at 100 PSI, while some higher-capacity or specialized units operate at 195 PSI. The gauge must match the operating pressure of the specific extinguisher it serves. Installing a 100 PSI gauge on a 195 PSI unit would cause the needle to peg against the stop on the high end and provide no useful reading.

Can I replace this gauge myself?

No. Gauge replacement involves the valve assembly of a pressurized cylinder and must be performed by a certified fire equipment technician to ensure the valve is correctly resealed and the unit is properly pressurized after reassembly.