The role of pipe caps in pipe installation
The function of the pipe cap is to close the pipe with the pipe end or the pipe fittings installed on the pipe end thread to cover and block the pipe, and the effect is the same as the pipe block.
The role of the pipe cap is to ensure that the pipe can be sealed at one end in the installation process, and ensure the normal use of elbow, tee and size head where the pipe is needed. The role of the pipe cap is good sealing and can protect the above pipe fittings. The pipe cap is easy to use in pipe installation, easy to remove, and can seal pipe at the end of the flow.
The weld direction of the pipe cap is only allowed to be radial and circumferential. This requirement may be removed for larger caps in the future. The splicing distance should be greater than 3δ and not less than 100mm (the weld heat affected zone is a high stress zone, and there will be burning loss of chemical composition in this zone. So avoid areas of high stress, which are related to thickness. According to practical experience, the stress attenuation length is greater than 3δ and not less than 100mm). But refrigeration equipment is difficult to meet this requirement, has its particularity.
After splicing molding head, splicing weld should be 99% ray or ultrasonic detection, qualified level with the equipment shell. The final forming welding joint detection level, proportion and equipment shell is the same, high waste. Example: if the equipment housing is 20% tested, III qualified. The closed splicing weld and the final weld are also III qualified, and the welding joint coefficient is 0.85;
If the equipment housing is 99% tested, II is qualified. The head splicing weld and the final weld is also II qualified, welding joint coefficient is one.
The role of the pipe cap in the pipeline system: For conveying liquid or gas, must use all kinds of pipe, the pipe with steel pipe outside, will use all kinds of pipe fittings, pipe bend when need to use this company produces the elbow, pipe reducer is needed in the installation is used when the company produced the size of the head and pipes need to make the tee branch pipe is used when the company fitting, Pipe joint and joint connection need flange produced by our company, in order to facilitate the use of customers in pipeline installation, the company's above pipe fittings are to provide customers with excellent products at a low price.