What type of gauge is commonly used to measure the pressure in a steam boiler?

The Bourdon gauge is a common choice for measuring pressure in steam boilers due to its reliability and accuracy in high-pressure environments. This type of gauge uses a curved tube that straightens when pressure is applied. As the pressure inside the tube increases, the tube tends to uncoil, which moves a pointer along a dial to indicate the pressure reading.

Bourdon gauges are favored in steam applications because they are rugged and can withstand the harsh conditions of steam operation, including high temperatures and pressures. Their mechanical construction ensures they provide consistent and precise measurements, which is crucial for safe operation of steam boilers where pressure control is essential for preventing accidents and maintaining efficiency.

Other gauges like analog gauges may refer to traditional mechanical devices, while digital gauges offer electronic readings but might be more susceptible to environmental factors. Manometers, while useful for certain low-pressure applications, are not typically utilized for steam boiler pressure measurement due to limitations in size and the need for specific conditions to provide accurate readings.