When is a pressure vessel certificate required for industrial tanks
Pressure vessel certificate is a document that can demonstrate that a tank or vessel has been designed and checked according to the relevant requirements for pressurized systems.
Such a certificate may be relevant when a tank is used under pressure and is subject to regulations such as PED, where CE marking may be part of the documentation depending on the application.
The certificate may include details of the design, materials, welding and checks or tests carried out.
Process Surplus offers pressurized tanks in various designs. Documentation, including pressure vessel certificates, may be available where indicated, depending on the design and history of the tank.
Function and structure
The pressure vessel certificate guarantees that the tank is correctly dimensioned and constructed. The documentation includes:
- Material certificate for stainless steel (AISI 304, 316, 316L)
- Welding protocols and quality control
- Pressure test protocol and safety valve check
- Reinforcements and base construction
- Internal equipment and flanges
Materials and construction
Stainless steel is often used in pressurized tanks where resistance to corrosion and cleanability are relevant factors in the process industry.
Information on, for example, plate thickness, welds and workmanship may be included in documentation associated with the tank, such as pressure vessel certificates.
Process Surplus offers pressurized tanks in various designs. Documentation linked to, for example, PED, CE and other standards may be available where indicated, depending on the history and specification of the tank.
Pressurized and atmospheric solutions
Certification is only required for pressurized tanks above 0.5 bar. Atmospheric storage tanks are not subject to pressure vessel certification requirements but can still be checked for material and weld quality for safe operation and hygiene.
Applications in industry
- Food industry – pressurized process and storage tanks
- Chemical industry – acids, bases and pressure vessels for solutions
- Pharmaceutical production – sterile equipment under pressure
- Water treatment – reaction vessels with internal pressure variations
Technical options and equipment
- Safety valves and pressure gauges
- Inspection gaps and sampling points
- Internal agitator and process equipment
- Insulation and thermal reinforcements
- Passivation and surface polishing
Volumes and capacity
Pressure vessel certification may be relevant when a tank is used under pressure above certain levels, for example in the context of current regulations such as PED.
Larger tanks may have different construction compared to smaller ones, for example in terms of plate thickness and reinforcements, depending on the design and application.
Documentation such as pressure vessel certificates may contain information on materials, welds and workmanship, which can provide a basis for further assessment of the tank properties.
Benefits of pressure vessel certificates
- Documented safety and strength
- CE marking showing compliance with PED
- Long lifetime and minimal risk of leakage
- Compatibility with pump and pipe systems
- Approved for food, chemical and pharmaceutical industries
New and used tanks in stock
Process surplus offers pressurized tanks in various designs, both new and used.
Associated documentation and certificates may be available where indicated, depending on the history and specification of the tank.
Information on documentation and possible controls varies from one site to another and can be used as a basis for assessing the use of the tank.
Choosing the right solution
When selecting tanks, it may be relevant to consider whether a pressure vessel certificate is relevant, depending on the area of use and applicable regulations.
Process surpluses can assist with information on different options and designs. Documentation linked to, for example, CE marking, PED and testing may be available where indicated, depending on the tank specification and history.
Executive summary
The Pressure Vessel Certificate is a document that may be relevant for the use of pressurized tanks, depending on the pressure level and applicable regulations.
The certificate may contain information on, for example, materials, welds and checks or tests carried out, as well as links to regulations such as PED.
Process Surplus offers pressurized tanks in various designs for use in areas such as food, chemical and pharmaceutical. Documentation, including pressure vessel certificates, may be available where indicated, depending on the history and specification of the tank.
Frequently asked questions about pressure vessel certificates for tanks
When is a pressure vessel certificate required for tanks?
Pressure vessel certificates may be relevant when a tank is used under pressure and is covered by applicable regulations, such as PED.
The certificate may include details of materials, welds and checks and tests carried out, and may form part of the documentation linked to CE marking, depending on the application and requirements.
Which tanks are subject to certification requirements?
Pressurized tanks may be subject to pressure vessel certification requirements when they are used above certain pressure levels and fall within the applicable regulations, such as PED.
Atmospheric storage tanks are not normally subject to the same requirements, but checks on, for example, material and weld quality may be carried out as part of the assessment of the condition and use of the tank.
What material should be indicated in the pressure vessel certificate?
Stainless steel 304 and acid-proof 316/316L are widely used in pressurized tanks in the process industry.
Material certificates can be included in the documentation and contain information on, for example, material properties and workmanship. This information can be used as a basis for assessment in relation to relevant requirements and regulations, such as PED.
What tests are included in the pressure vessel certificate?
The certificate includes pressure test, weld test, safety valve test and documentation of plate thickness and material. These tests ensure that the tank can handle the intended pressure without risk of leakage or deformation.
Can used tanks get a pressure vessel certificate?
Used pressurized tanks may have been inspected in some cases, and related documentation may be available depending on the history and design of the tank.
Information on, for example, materials, welds and tests performed can be included in the documentation and used as a basis for assessment in relation to relevant requirements and regulations, such as PED.
The possibility of continued use varies depending on the condition of the tank, its construction and current operating conditions.