Electric bending
The electrical bending test examines the installation and usage requirements of the product, this test has the ability to test on samples of gas and water ball valves from size 1/2“ to size 4“. These products are subjected to bending stresses both during installation and after installation.
Leakage and angular leakage
This test determines the angle of the handle from the threshold position of opening to full closing.
According to standard 4047 for gas ball valves, this value should not be less than 8 degrees, and according to standard 16222 for water ball valves, it should not be less than 6 degrees.