Flange Mount Stainless Steel Diaphragm Pressure Gauge

Hongqi Instrument, established in 1993, is one of the leading manufacturers and suppliers of flange mount stainless steel diaphragm pressure gauge in China. Providing you with low price and good service, we welcome you to wholesale the famous brands' gauge made in China at cheap price from our factory.

Flange Mount Stainless Steel Diaphragm Pressure Gauge

Factors Affecting Accuracy Class of Diaphragm Pressure Gauge

Diaphragm assembly Material, thickness and diameter of diaphragm dominate extra error. Thicker or smaller diaphragm brings higher resistance during deformation. Welding quality and residual stress of diaphragm also cause deviation.

Filling transmission fluid Gas bubbles or insufficient filling volume will damage pressure transmission. Temperature variation causes thermal expansion and contraction of filling liquid and generates temperature error.

Temperature Both medium temperature and ambient temperature change diaphragm elasticity and fluid volume, leading to measuring deviation.

Installation condition Long capillary, excessive bends, installation angle and height difference create hydrostatic pressure and pressure transmission delay.

Working pressure condition Pressure pulsation and shock load cause diaphragm fatigue and long-term accuracy drift. Overpressure may result in permanent deformation of diaphragm.

Gauge body precision The total system error combines the error of pressure gauge plus additional error from diaphragm isolator.

Medium deposition Viscous, crystallizing or particle-containing medium accumulates on diaphragm surface and changes its elastic property.

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