特点 Features：

设计紧凑，安装方便。补偿能力大，投资费用低。直埋套筒补偿器采用先进的注压密封技术实现长期可靠密封免维护，可直接埋入地下，无需设立检修井。双向套筒补偿器可分别补偿两端相连管道的热变形量，补偿能力更大。伸缩芯管表面采用耐磨高硬光滑保护涂层技术，提高抗磨损、耐腐蚀能力，大大降低了伸缩芯管的轴向运动阻力。采用回弹性好、耐高温、防腐蚀、抗老化的柔性石墨复合密封材料，具有足够的密封面长度，保证了产品可靠密封。芯管伸入外壳部分的末端设有牢固的防脱结构，保证当伸缩到极限位置不被拉开，使产品更具安全性。内、外套筒间设有导向轴瓦，能承受管道侧向力，提高了内外套的定位、导向性能和工作稳定性。针对直埋套筒补偿器安装在地下特殊使用环境，在产品结构设计上增设了防护套管、防护挡板，有效地减少了地下水和砂土进入补偿器的密封面，同时更有利于保温和产品正常工作。安全性能高，使用寿命长，可达30年以上。维修方便，可在正常工作情况下带温、带压进行检修。

Compact design and convenient installation.Large compensation ability and low investment cost. The direct buried sleeve compensator adopts advanced injection sealing technology to realize the long-term reliable sealing and maintenance, which can be buried directly underground without the need to set up the main tenance well. The two - way sleeve compensator can compensate the heat deformation of the two connected pipes respectively, and the compensation ability is greater. The surface of the retractable tube adopts wear-resistant and high hard smooth protective coating technology, which improves wear resistance and corrosion resistance, and greatly reduces the axial movement resistance of the retractable core tube. Flexible graphite composite sealing materials with good resilience, high temperature resistance, anti-corrosion and anti-aging, with sufficient sealing length, ensure reliable sealing of products.The core tube extends into the end of the shell part with a strong anti-stripping structure, which guarantees that the product will be more secure when stretching to the limit position. The inner and outer sleeve is equipped with a guide bearing, which can withstand the lateral force of the pipeline and improve the positioning, guiding performance and working stability of the inner and outer sleeve.In view of the buried sleeve compensator installed in underground special use environment, add the protective sleeve on the product structure design, protective barrier, effectively reduce the groundwater and soil into the sealing face of the compensator, at the same time, more conducive to heat preservation and products to work properly. High safety performance, long service life, more than 30 years. The maintenance is convenient, and can be carried out with temperature and pressure during normal working conditions.

 

基本参数Basic Parameter：

工作压力 Working pressure：0.6-30MPa

工作温度 Working temperature：-50℃-650℃

最大补偿量Maximum compensation：单向one - way 500mm    双向two-way1000mm

适用介质Applicable media：热水hot water、蒸汽steam、冷却水cooling water、循环水circulating water、其它流体other fluids

密封材料摩擦系数Friction coefficient of sealing material：≤0.15