The Reotemp HF Safety Gauge is a mechanical pressure gauge designed for Hydrofluoric Acid service.
The gauge combines an all-welded diaphragm seal system with pressure gauge internals and diaphragm seal components made with Monel A400 material.
This gauge is built for applications where dual containment, visual leak indication, and controlled assembly handling are important selection considerations. The diaphragm seal system is coated with acid-detecting paint to provide a visual alert in the event of a process leak around the seal.

Key Characteristics
- Mechanical pressure gauge for Hydrofluoric Acid service
- Reotemp Model MSX design
- All-welded diaphragm seal system
- Monel A400 diaphragm seal components and pressure gauge internals
- Acid-detecting paint on the seal body
- Gold plated Monel diaphragm available for aerated HF service
- 316LSS or Monel wetted material options
- Tempered safety glass, plastic, or laminated safety glass lens options
- Assembly cleaned per ASME B40.1 Level IV and shipped in a sealed bag
- Accuracy ±1% ASME Grade 1A
Ideal Applications
- Hydrofluoric Acid service
- Aerated HF service when configured with a gold-plated Monel diaphragm
- Pressure gauge applications requiring an all-welded diaphragm seal system
- Applications where visual indication of leakage around the diaphragm seal is required
- Installations requiring no gasket in the wetted seal assembly
Product Family Includes
- Reotemp Model MSX HF Safety Gauge
- HF safety gauge assemblies with diaphragm seals
- Direct mount configurations
- Remote mount configurations
- Cooling tower process limit configurations, where specified
Industries Served
- Industrial Applications
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