Gauge Pressure Transmitters – Reasons of Failure and Tips to Avoid Risks Internal process pressure measurement is an important requirement in many industrial fluid systems. This pressure is measured using pressure gauges or gauge pressure transmitters. Thus, it can be rightly said that gauge pressure transmitters are an integral part of pressure warning systems in many industrial facilities. There are several reasons for the failure of these pressure gauges. Are you intrigued to know what they are and how these reasons can be prevented or fixed before they escalate? If it sounds yes, perhaps, this post is for you. It analyzes the top 5 reasons for gauge pressure transmitter failure and their fixing tips.
5 Common Causes of Gauge Pressure Transmitters – 1. Mechanical Vibration – Signs of Damage Due to Mechanical Vibration: • A detached pointer in case of severe vibrations • Dust like halo observed inside the window of the gauge which may be an indication for worn segment gears and pinion Tips to Avoid Vibration: You can choose a gauge that resists vibration. It is always better to choose a direct-drive gauge or liquid-filled gauge with a single moving part.
2. Overheating – Signs of Damage Due to Overheating: • Melted dial, window, or case of gauge, and this disfiguration may be brought by hot media • Discolored liquid fill or dial if the pressure gauge is mounted too close to the system with excessively hot gas or liquids Tips to Avoid Overheating: Try to choose a pressure gauge with a high temperature rating, as it can easily withstand high temperatures while accommodating temperatures of actual systems. If the gauges are chosen for excessively hot environments, it is recommended to choose a gauge with a cooling element or diaphragm seal. 3. Pressure Spikes – Signs of Damage Due to Pressure Spikes: • Broken stop pin • Broken or nicked pointer that hits the stop pin • Bent pointer
Tips to Avoid Pressure Spikes: Install an overpressure protector to avoid pressure spikes. These protectors inhibit readings that go beyond the set gauge capacity.
4. Corrosion – Signs of Damage Due to Corrosion: • Deterioration of dial, connection, pointer, and gauge case • Discoloration of gauge case Tips to Avoid Corrosion: Use a diaphragm seal made of corrosion-resistant materials to isolate corrosive media and pressure gauge.
5. Pulsation – Signs of Damage Due to Pulsation • Broken or loose pointers in extreme cases • Fluttering pointers Tips to Avoid Pulsation: Choose a liquid-filled case and install a restrictor to dampen pulses on a gauge. The company provides pressure gauges from industry-leading brands and has been serving clients from chemical processing, water and wastewater management, hydraulics and pneumatics and other industries for several years now.