My company has a oil cooler, for oil tube side and shell side for cooling water, work pressure 0.4 MPa, whether it is a pressure vessel (certainly not subject to regulatory rules), what is the standard to check? Whether it's manufacturing must have a pressure vessel production certificate?
The tube side and shell side are based on liquid, the temperature is not high, so do not belong to the scope of regulatory rules, but it is airtight container under pressure.
Pressure vessel: refers to holding gas or liquid, carrying a certain pressure airtight device, its range for maximum working pressure is greater than or equal to 0.1 MPa (table), and the product of the pressure and volume of greater than or equal to 2.5 MPa, L gas, liquefied gas and the highest standard of working temperature is higher than or equal to the boiling point of the mobile and stationary containers of liquid container; All nominal working pressure is greater than or equal to 0.2 MPa pressure (table), and the product of the pressure and volume greater than or equal to 1.0 MPa, L standard of gas, liquefied gas, and the boiling point is equal to or lower than 60 ℃ liquid cylinders; Oxygen tank, etc. Certainly belongs to the pressure vessels, and regulatory rules Should the rules regulation range
1. Don't belong to. 2. Do not conform to the pressure vessel under the jurisdiction of the medium of the three essential conditions of, you this two kinds of medium within the scope of work is not gas or exceed the standard boiling point. 3. Its stress conditions, making it still must follow GB150 and GB151 to create, so in principle must be qualified pressure container manufacturing units to make a quality product. But the capacity gauge tube, means that the actual law don't tube, by consciously.
