1. Factors affecting the installation quality of the hose clamp:
(1) Clamp clamps must not have defects such as air holes, blisters, and shrinkage holes.
(2) The material and performance of the sealing ring must meet the requirements. There should be no air bubbles, impurities, cracks, uneven unequal defects on the sealing surface, and the aging rubber ring cannot be used.
(3) The moving distance of the snap ring in the clamp clamp is theoretically half of the joint expansion and contraction. The actual amount is to be measured. If the clamp is not reached, the expansion and contraction requirements of the pipeline cannot be met. In order to promote the sealing effect, the left and right clamp end pipe are matched with the clamp clamp before leaving the factory. In the actual project, it is not suitable to replace the end pipe directly with the ordinary pipe, and the verticality of the end pipe end face and the axis and the flatness of the end face itself are required. If the size is not standard, the expansion and contraction amount of the joint is greatly reduced, and the use requirement cannot be met.
(4) The diameter of the end pipe diameter should be selected as the positive deviation, otherwise the clamping force of the clamp clamp on the sealing ring is not enough, which affects the sealing effect of the joint dense clamp.
2. Precautions during installation:
(1) To control the distance L of the snap ring from the end pipe. The control should be combined with the instruction manual. When the gap L between the two pipe ends is the smallest, it is necessary to ensure that the snap ring just sticks to the slope.
(2) In the case where the position of the snap ring is determined, the size of the gap between the two pipe ends is determined by calculation based on the elongation of the pipe and the ambient temperature at the time of construction. Dimensional deviations should be ensured during construction.
(3) Under the premise of a certain moving distance, the weld height and width of the snap ring and the end tube are welded, and the perpendicularity error between the snap ring plane and the end tube axis is larger, and the smaller the expansion and contraction amount of the joint is, the worse the use effect is.
(4) The splashing impurities during the welding of the end pipe and the snap ring affect the end pipe seal. Before installation, the welding slag on the sealing surface should be removed to ensure the sealing effect. Respondent's supplementary clamp connection clamp connection is a new type of steel pipe connection, also called groove connection, which has many advantages. The design specification of the sprinkler system is proposed. The connection of the system piping should be connected by grooved joints or threaded and flanged joints. For pipes with a diameter of 100mm or more in the system, flanges or grooved joints should be used in sections. connection.
Fastener(Non-s)
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