Showing posts with label pressure gauge. Show all posts
Showing posts with label pressure gauge. Show all posts

Reotemp MSX HF Safety Pressure Gauge for Use in Hydrofluoric Acid Service

Reotemp MSX HF Safety Pressure Gauge

While corrosive acids have been used safely in industrial applications for many years, choosing appropriate pressure instrumentation for these sites necessitates specialized knowledge. Reotemp is aware of the consequences of acid leakage and developed the MSX HF Safety Gauge

The REOTEMP Model MSX HF Safety Gauge is a mechanical pressure gauge designed for hydrofluoric acid operation. The diaphragm seal components and the pressure gauge internals are Monel A400, per EPA dual containment regulations. The entire diaphragm seal system is welded and coated with acid-detecting paint, which provides a visible signal in the case of a process leak around the diaphragm seal.

If you'd like to discuss applying the MSX HF Safety Gauge in your application, contact:

Piping Specialties / PSI Controls

Extremely Durable 4.5 Inch Process Gauges

REOTEMP’s Series PT45P

The Series PT45P process gauge from REOTEMP endures corrosive atmospheres and media and pulsation and vibration; it is an extremely tough gauge designed for use in the process industries. The solid front and blowout back provide an extremely high level of user safety. Note: Install a diaphragm seal for applications that are highly corrosive, high-temperature, or subjected to rigorous usage.

Series PT45P Features

  • Safety Pattern Design
  • Solid Front/Blowout Back Safety Case
  • All Stainless Steel Internal Parts
  • Internal Overload and Underload Stops
  • Field Fillable Case
  • Micro-Adjustable Pointer with Floating Zero
  • ASME B40.100 Design
  • NACE MR-0175 and MR-0103 Compliant
Piping Specialties / PSI Controls

Top 5 Considerations in Selecting Pressure Gauges

Pressure gauges are ubiquitous in industry and installed on machinery around the world. While there are millions of possible combinations of shapes, sizes, options and materials, careful attention needs to be given to the following five criteria for safe use and long product life.

1) Process Media
Direct exposure of the sensing element to the process media is a possibility, so attention must be given to any corrosive media, media with particulate, or media that can solidify and clog the pressure gauge element. For non-clogging media, a direct connection and Bourdon tube sensor can be applied. For process media that could potentially cause clogging, a diaphragm seal should be used.

2) Process Media Temperature
Gauge with diaphragm seal
Gauge with
diaphragm seal.
Very hot media, such as steam or hot water, can elevate the gauge's internal temperature leading to failure or an unsafe condition. For high temperature application, the use of a gauge "siphon" or diaphragm seal be applied.

3) Ambient Operating Temperature and Environment
It is important to know the rated ambient environment for any instrument. Elevated ambient temperatures, moisture, vibration, and corrosive atmospheres can all affect accuracy, calibration, and safety. Choose the proper case and mechanism materials if oxidizing or reducing atmospheres exist, and consider the addition of ancillary devices, such as remote diaphragm seals, to relocate the gauge.

4) Possibility of Severe Pressure Fluctuations
In applications where dramatic line pulsations or strong over-pressure conditions are a possibility the use of pressure restrictors, snubbers, or liquid-filling will extend the service life of the pressure gauge.

5) Mounting
Snubbers & restrictors
Snubbers & restrictors

Pressure gauges are standardly available with bottom (radial) and back connections. NPT (National Pipe Thread Taper) threaded connections are generally the standard. Many other process connections are available though, such as straight threads, metric threads, and specialized fittings. Make sure you know how the gauge is being connected. When mounting, pressure gauges should be almost always be mounted upright.

For more information about pressure gauges, contact PSI Controls by visiting or by calling 800-223-1468.