Pressure Vessel designed for static pressure of 3 Barg and Vacuum application designed to ASME Sec. VIII , Div.1 (2012) in compliance to latest Hygienic standards laid down by USFDA , ASME(BPE) , A3 ,cGMP & EHEDG.
A pressure vessel is a container designed to hold gases or liquids substantially different from the ambient pressure.
Design involves maximum safe operating pressure and temperature, safety factor, corrosion allowance, and minimum design temperature (for brittle fracture). Construction is tested using non-destructive testing such as pressure tests, etc. Hydrostatic tests use water, but pneumatic tests use air or another gas. Hydrostatic testing is preferred because it is a safer method, as much less energy is released if a fracture occurs during the test (water does not rapidly increase its volume when rapid depressurization occurs, unlike gases like air, which fail explosively).
The first step in this design procedure is to set down the operational requirements. These are imposed on the vessel as part of the overall plant and include the following:
a. Operating pressure: As well as the normal steady operating pressure, the maximum maintained pressure needs to be defined. Regulations and standards will define how this maximum pressure is translated into vessel design pressure.
b. Fluid conditions: Maximum and minimum fluid temperatures will need to be specified and translated into metal design temperatures. Fluid physical and chemical properties will influence the material choice, and specific gravity will affect support design.
c. External loads: Loads to be considered include wind, snow, and local loads such as piping reactions and deadweight equipment supported from the vessel.
d. Transient conditions: Some vessels may require an assessment of cyclic loads resulting from operational pressure, temperature, structural and acoustic vibration loading.
The 3 Most Common Types of Pressure Vessels:
- 1) Storage Vessels
- 2) Heat Exchangers
- 3) Process Vessels
Pressure Vessel Steel Plate for Storage Applications
- Low, medium, and high yield plates are available for a wide range of such storage facilities. Storage applications can be found in:
- · petrochemical plants
- · the pharmaceutical industry
- · the oil and gas industry
- · the nuclear power industry
- · biotechnology
- · the food industry