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  • +86-577-21860957
  • info@formenvalve.com
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Our Quality -

Our Raw Material

Raw material quality is vital for valve quality, FORMEN VALVE sources casting and forging from selected vendor. Before machining, we will take 4 steps to guarantee the material quality.
1. Visual test: visual test as per MSS SP-55, casting with obvious defects will be declined
2. Valve wall thickness test: random inspection on valve wall thickness by ultrasonic thickness meter, unqualified ones will be declined.
3.Chemical component analysis: random PMI test is performed to ensure qualification.
4.Dimension check: face-to-face, flange thickness will be checked before process.

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Our Production

When the designs are approved by the customer, the production process starts. Our highly qualified staff works with high speed machines to produce your valves according to your specifications. After rough machining, 20% of valve component is checked dimensionally by Q.C inspectors; 100% after fine machining.

Our Testing & Inspection

After the production process has finished, each and every single valve is tested in-house. Our valves have to endure a hydro-test on body and seat, followed by a low pressure air-test according to API 6D, API 598. Additional tests on valves and materials can also be arranged by FORMEN VALVE

Executed in our factories:

  • Dimensional & visual testing
  • Hardness testing
  • Magnetic particle inspection
  • Dye-penetrant inspection
  • Thickness testing
  • Paint thickness testing
  • Surface finishing testing
  • Manometer calibration
  • Shell and seat hydrostatic testing
  • Tensile testing
  • Impact testing
  • Micrographic examination
  • Macrographic examination
  • Linearity & cylindrical testing
  • Helium testing
  • Cryogenic gas testing

Executed by our specialised external partners:

  • X-Rays inspection
  • Ultrasonic inspection
  • Corrosion testing
  • Micrographic and macrographic examination
  • Positive material identification
  • Chemical analysis
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