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Upholding the corporate spirit of “Integrity, Harmony, Pragmatism, and Innovation,” we remain committed to a business philosophy that puts people first, embraces technological innovation, and emphasizes integrity and pragmatism.
Let’s take a closer look at the advantages of sleeve compensators.
Release time:
Apr 28,2022
The sleeve compensator, also known as a tubular expansion joint or pipeline expansion device, is a compensation device used in hot-fluid pipelines, primarily designed for the installation of straight pipelines. It is suitable for media such as hot water, steam, and oil-based substances. By means of the sliding motion of the inner sleeve relative to the outer sleeve, it effectively compensates for thermal expansion. The sleeve compensator consists of an outer sleeve and an inner sleeve.
The sleeve compensator, also known as a tubular expansion joint or pipeline expansion device, is a compensation device used in hot-fluid pipelines, primarily designed for the installation of straight pipelines. It is suitable for media such as hot water, steam, and oil-based substances. By means of the sliding motion of the inner sleeve relative to the outer sleeve, it effectively compensates for thermal expansion. The sleeve compensator consists of an outer sleeve and an inner sleeve.
Limit rods are installed on the flange plates of both the outer and inner cylinders, and limit blocks are provided on the inner wall of the outer cylinder. The space between the outer and inner cylinders is sealed by a V-shaped rubber ring. This design thoroughly addresses the shortcomings of existing expansion joints—such as high packing friction, easy leakage, difficult machining, and tendency to be pulled out—and offers advantages including reliable sealing, low friction, compact size, light weight, and resistance to being pulled out.
The widespread popularity within the industry is primarily due to the following advantages: sleeve compensators have a long service life, with a fatigue life comparable to that of the pipeline itself. The sliding surfaces undergo special treatment, providing excellent corrosion resistance even in environments such as saltwater and saline solutions—more than 50 times better than that of austenitic stainless steel. Moreover, if the sealing performance weakens over the years due to wear, the flanges can be re-tightened to restore the seal. Alternatively, the bolts can be loosened, the compression ring removed, and one or two additional sealing rings installed before tightening the compression ring again, allowing the compensator to continue functioning effectively.
The sleeve compensator has no requirements regarding chloride ion content and is particularly suitable for systems where the chloride ion concentration in the medium or the surrounding environment exceeds the permissible limit. Sleeve compensators come in two types: unidirectional and bidirectional. The bidirectional type features sliding sleeves at both ends of the compensator that can freely slide regardless of which end the medium enters from, thereby achieving bidirectional compensation and increasing the overall compensation capacity.
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