Which brand is good for Yixing electric high-temperature butterfly valve? Process parameters and system requirements that shall be provided for regulating valve selection 1. Process parameters. Temperature, pressure, pressure difference at normal flow and pressure difference at cut-off. 2. Fluid properties. Influence of corrosivity, viscosity and temperature change on fluid characteristics. 3. System requirements. Leakage, controllable ratio, operating speed and frequency, linearity and noise.
、 Elimination method of lower seal gasket failure
1. Replace the sealing gasket
2. Compression flange bolt (evenly stressed)
3. Remove the pressure ring of the valve, replace the seal ring and the invalid gasket
