Quality & Certification
Follow the standard and prove it with data: traceable raw material, documented key processes and inspection reports shipped with the goods.
Six checkpoints, documented batch by batch
Raw material inspection
Incoming steel is checked against the mill certificate heat number and each batch is spectro-tested for chemical composition. Non-conforming batches are rejected outright to prevent material mix-ups.
Forging & heat treatment
Forging ratio and final forging temperature are controlled, and normalizing, tempering or solution treatment is carried out to material and standard with full furnace chart records.
Machining & dimensional control
Sealing faces are machined on CNC lathes and vertical lathes. Production starts only after a first-article full dimensional check, with in-process inspection at set frequencies.
NDT & pressure testing
Radiographic, ultrasonic, magnetic particle or dye penetrant examination can be performed on request, along with hydrostatic testing, air-tightness testing and sealing face flatness checks.
Surface treatment & marking
Rust oil, black paint, hot-dip galvanizing or epoxy coating are available. Flange rims are steel-stamped with size, material, pressure class and heat number as required by the standard.
Packing & pre-shipment review
Before shipment, quantity, marking and certificates are re-checked against the packing list. Goods are rust-protected, marked to your instructions and shipped with material and inspection certificates.
Certifications and inspection support for export business
Quality management system
Certificate copies available for verification
PED
EU Pressure Equipment Directive
Certificate copies available for verification
ASME material specification
Certificate copies available for verification
SGS
Third-party inspection & factory audit
Certificate copies available for verification
The certificates we hold are those currently valid; scanned copies can be provided for verification on request.
Tests we can perform
- Spectro analysis (PMI)
- Hardness and tensile testing
- Impact testing
- Metallographic analysis
- Radiographic testing (RT)
- Ultrasonic testing (UT)
- Magnetic particle testing (MT)
- Dye penetrant testing (PT)
- Sealing face flatness check
- Hydrostatic and air-tightness testing
- Thread go / no-go gauging
- Coating thickness measurement
Paperwork that ships with your order
- Material test certificate (EN 10204 3.1)
- Chemical composition report
- Mechanical property test report
- Heat treatment record and furnace chart
- Dimensional inspection report
- Hydrostatic / air-tightness test report
- Third-party inspection report (SGS / BV / TUV)
- Packing list and commercial invoice
Our quality commitment
We stand behind every batch we ship: raw material is traceable to the heat number, key processes are documented, and quantity and marking are re-checked against the packing list before dispatch. Should a quality issue arise from our side, we will replace the goods and honour our contractual responsibility, and work with you on root cause analysis.
- Batch production starts only after a first article passes full dimensional inspection
- Photos and videos available at key production stages
- Third-party inspection agencies welcome at our factory
- Start with a small trial order and let the product build trust
Would you like to see our reports and certificates?
Tell us which items matter to you and we will share sample reports for the relevant batch, certificate copies, or arrange a third-party inspection at our factory.