Before the test pressure to ensure that the setting of the fixed, support and guidance should be in line with the product description and pipeline planning drawings, if there are any problems should be timely contact with the planning unit and production manufacturers to prevent damage to the product. Media for the gas pipeline test pressure when the weight of the water to have a reasonable support. The test pressure is severe according to the planning rules and the pressure rises step by step, constant inquiry, non-metallic compensator key inquiry fixed bracket has no obvious deformation and compensator has no disorder phenomenon. The use of a reasonable period of time to check, such as abnormalities, should be timely contact with the planning unit and production manufacturers.
