1. hydraulic pressure test valve, no cracks, holes, dents, stem adjustment shall not be stuck phenomenon.
2. pressure gauge fatigue test bench and spare bolts and nuts must be calculated by strength and mark to prevent confusion.
3. the workpiece must be fastened to the device, and shall not be placed freely.
4. the rubber ring or other elastic pad used in the test can not have the phenomenon of concavo convex, layered, loose or elastic.
5. pressure gauge fatigue test stand according to the product process for pressure test, when the pressure is raised above the working pressure, the nut must not be screwed, the clamping device and other components on the component.
The 6. end cover must be in accordance with the technical documents, and can be used after passing the test. When the test pressure is more than 25% of the calculated pressure, it is not allowed to use.
We have a clear division of labor and provide perfect service to our customers. But we also know that the industry competition intensified, the road is still difficult because of twists and turns, with your trust and support, let us have confidence to do better, but also to go further, we will always maintain a consistent and pragmatic refinement of the spirit, full of enthusiasm, for our customers to send the most ideal products.