Fire Belt Knowledge Point 1Product identification: Compare the 3C certification type inspection report of the water belt to see if the product name, model and specification are consistent. 2Length of water belt: If the length of water belt is less than 1 m or more, the product can be judged as unqualified. 3Pressure test Cut 1.2m long water strip, press to test pressure smoothly, hold pressure for 5min, check whether there is leakage.Under the test pressure, the pressure should not be less than 3 times of the working pressure of the water belt when the pressure is increased to the sample blasting.If the test pressure of type 8 water belts is 1.2 MPa, the blasting pressure is not less than 2.4 MPa.