The classification of the pressure vessel???
TSG R0004-2009 "stationary pressure vessels safety and technical supervision regulation in the annex A detailed instructions are included on the classification of the pressure vessel.
Pressure vessels according to the stress classification: 1, low pressure container: 0.1 P < 1.6 MPa, medium-pressure containers: 2 or less 1.6 or less P < 10 MPa 3, high-pressure container: 10 or less P < 100 MPa, ultra-high pressure vessel: P > 100 MPa According to the design temperature classification: Cryogenic vessels t < - 20 ℃ and room temperature container - 20 ℃ < t < 450 ℃, and a high temperature container t 450 ℃ or more Classification according to the principle: The reaction tank, heat exchanger containers, separation of containers, storage containers. According to the comprehensive safety classification: 1, three types of pressure vessel 2, 3 second class pressure vessel, a kind of pressure vessel
Suggest you go to see the solid capacitors gauge.