Description :
A pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially different from the ambient pressure.They are extensively applicated at petrochemical industry ,energy industry ,scientific research and other industry .
Pressure Vessel oversize:
Grades of pressure vessels undertaken by JIEMA:
D1 (Type I pressure vessels) :0.1Mpa ≤ P ≤ 1.0Mpa
D2 (Type II low and medium pressure vessels) :1.0Mpa ≤P ≤ 1.6 Mpa
Pressure vessel products manufactured by JIEMA:
Volume heat exchanger
Shell-and-Tube Heat Exchanger
Steam Header
Gas storage tank and etc.
Spherical vessel:
For a sphere, the mass of a pressure vessel is
where:
is mass,
is the pressure difference from ambient (the gauge pressure),
is volume,
is the density of the pressure vessel material,
is the maximum working stress that material can tolerate.
Other shapes besides a sphere have constants larger than 3/2 (infinite
cylinders take 2), although some tanks, such as non-spherical wound
composite tanks can approach this.
Cylindrical vessel with hemispherical ends.
This is sometimes called a bulle for its shape, although in geometric terms
it is a capsule.
Pressure Vessel Production Qualification
Audited Supplier 
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