Grinding Wheels Inspection
Valve inspection
Valve Inspection
Third-party valve inspection is normally arranged by the purchaser, and the representative from the third-party inspection agency. Usually, a list of documents is required to review by valve inspector, including:
- Purchase Order of the Valve
- Data Sheet of the Valve
- Manufacture Quality Control Plan
- Inspection and Test plan
- All Approved drawings
- Welding Specification Procedures(WPS) and Procedure Qualification Records (PQR).
- Required NDE Procedures like Dye Penetration, Magnetic Particle, Radiographic, Ultrasonic, PMI Testing, …
- Hydrostatic Testing Procedure of the valve to ensure leak tightness
- Valve Material Test Reports
- Valve NDE Personnel Qualifications Reports
- Heat Treatment Procedure of the Valve material.
- Calibration Certificates for Test Equipment
- Closure Testing Procedure, Backseat Testing Procedure, and Water Quality Document
- Preparation and Painting Procedure
- Preservation, Packing, and Shipping Procedure
- Packing List
Valve Material Inspection by Third Party
The original or authenticated copies of valve material mill certificates need to be available and provide to the inspector (TPI) with the factory. The inspector check these material certificates for compliance with design specifications or drawings. The review documents includes checking the documents below:
- Certificate No.
- Heat or cast No.
- Chemical composition.
- Mechanical properties.
- Heat-treated condition.
- NDE applied and results.
- Surface finish
Valve material includes the body stem material, shell material, valve trim materials, ball, wedge or flap materials, operating components, support material, gland materials, anti-friction materials, well end, flanges, and any other specified component material. Then the inspector witnesses the materials identification on the certificates against the materials marking specifications to be sure they are meet each others.
Upon completion of the valve material inspection by the third part inspector, he issues an inspection report (IR), that contains the following items:
- Confirmation of satisfactory document review
- Record of the endorsement of certification reviewed/witnessed
- Record of all non-conformities and objections
- Record of any tests witnessed and the result
- Record the photos during inspection
Third Party inspection
What is the Third-Party Inspection:
A Third-Party Inspection, or TPI, is the term used for independent impartial inspection services provided by a qualified company. They will send out the inspection team to the factory to conduct quality inspections and conduct a series of testing on the products to check if they meet the required quality standards.
Before the manufacturing process, your products will be designed and a prototype will be created. After you have approved the design and the materials to be used, the product will be sent to the factory where it will be mass-produced. And now, this is the time that the third-party inspection happens.
It is depended on the services you request from your TPI agency; the inspection can happen at any time during production.
Here we would like to mention some inspection scopes which TPI attend:
Pre-production inspection:
During this step, the inspectors visit the factory before the production begins. They check the raw materials and components that will be used. This is done ensure that the specified requirements will be followed during production.
Manufacturing or production inspection:
When the products have been inspected during the manufacturing process.
It’s also when a series of tests on the product is carried out to ensure that they are produced to the correct standard and that they meet product specifications.
Final inspection:
This step involves checking a sample of products from the batch to determine any defects before they are shipped.
Pre-shipment inspection:
Involved in this step is the checking of finished goods to determine if it meets standard quality before they are packed for shipping.
Container loading supervision:
This is also known as the loading inspection where an inspector supervises the packing of products into containers to ensure that they are packed correctly and securely before it’s sold in the market.
Some companies only offer the final inspection services, whereas some prefer offers pre-production inspection (PSI) services until pre-shipment inspection services. It is really depending on what the client required from TPI agency.
What are the Benefits of Conducting a Third-Party Inspection?
- Impartial Inspectors
- Cost-Effective
- Qualified Inspectors
- Impartial Inspectors:
- Cost-Effective:
- Qualified Inspectors
BQS has been working as a third-party inspection company so far and we are working to make you ensure about your products quality.