Raw material quality is vital for valve quality, FORMEN VALVE sources casting and forging from the selected vendors. 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 the process.
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.
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
