Sleeve compensator Instructions

　　Sleeve compensator instructions: The sleeve compensator, also known as a pipe expansion joint or pipeline expansion joint, is a compensation device used in hot-fluid pipelines and primarily serves as an auxiliary component for linear pipelines. It is suitable for media such as hot water, steam, and oils. The sliding sleeve compensates for thermal expansion by allowing the outer sleeve to slide relative to the inner sleeve.

　　The sleeve-type expansion joint is suitable for medium-pressure applications with a maximum working pressure of ≤ 2.5 MPa and a medium temperature ranging from -40℃ to 600℃.

　　The sleeve-type compensator employs a new type of sealing material—the flexible graphite ring—which features high strength, a low coefficient of friction (0.04–0.10), resistance to aging, excellent performance, and easy maintenance. The sleeve-type compensator boasts a long service life, with a fatigue life comparable to that of the pipeline itself.

　　After special treatment, the sliding surfaces exhibit excellent corrosion resistance in environments such as saltwater and saline solutions—more than 50 times superior to that of austenitic stainless steel. Moreover, if, after many years, wear causes the sealing performance to weaken, the flanges can be re-tightened to restore the sealing effectiveness. Alternatively, the bolts can be loosened, the pressure ring removed, and one or two additional sealing rings installed, followed by compressing the pressure ring for continued use. Sleeve-type expansion joints have no specific requirements regarding chloride ion content, making them particularly suitable for systems where chloride ion levels in the medium or surrounding environment exceed acceptable limits. Sleeve-type expansion joints come in both unidirectional and bidirectional compensation designs. The bidirectional type is characterized by the fact that, regardless of the direction of flow through the expansion joint, the sliding sleeves at both ends always remain freely movable, enabling bidirectional compensation and increasing the overall compensation capacity. Directly buried sleeve-type expansion joints can be installed directly underground, eliminating the need for maintenance pits during installation and resulting in lower project costs. Here’s a breakdown and explanation of the bidirectional sleeve-type expansion joint: How does a sleeve-type expansion joint perform? This question cannot be answered uniformly; it depends on your specific application conditions. Below is a brief introduction to the characteristics of sleeve-type expansion joints for your reference. These joints primarily consist of a sleeve (core pipe), a housing, sealing materials, and other components designed for compensation purposes. The bidirectional sleeve-type expansion joint comprises the following components: left sleeve 2, left core pipe 5, right sleeve 25, right core pipe 23, left inner sealing ring 4, left outer sealing ring 8, right inner sealing ring 26, right outer sealing ring 24, and connecting fasteners. A key feature of this utility model is that the inner circumference of the left-end sleeve 2 forms a circular wedge-shaped space between the two sides of the convex outer wall of the left-end core pipe 5. Similarly, the convex inner wall of the right-end sleeve 25 creates a circular wedge-shaped space between its two sides and the outer circumference of the right-end core pipe 23. Correspondingly, these circular wedge-shaped spaces are each fitted with a left inner sealing ring 4, a left outer sealing ring 8, a right inner sealing ring 26, and a right outer sealing ring 24. Another distinctive feature is that the inner and outer sealing rings at both ends of the joint can be either solid-core or hollow-core. Specifically, a V-shaped circular groove is cut into the middle of the wedge-shaped conical section of the sealing rings; this groove can be single or multiple. Both the inner and outer sealing rings can be solid-core, hollow-core, or hybrid-core.