Spring supports and spring hangers mainly include T1, T2, T3, T4, T5 type of Northwest Electric Power Design Institute, Th1, Th2, th3, TD series of nbt47039-2013 variable spring hanger of East China Electric Power Design Institute, and vs series of Chemical Engineering Design Institute. These four series have the same basic characteristics and are widely used in electric power, metallurgy, chemical industry, petroleum textile and other industries, Pipeline system and its equipment which produce thermal displacement in operation.

　　The series can be used in 200 ~ 210000n load range, 40, 50, 80, 90, 120, 135mm thermal displacement and - 40 ℃ ~ 120 ℃ temperature range.

　　Its structure form and model expression method

　　T. According to the installation form, th type supports and hangers can be divided into three types: spring hanger Th1, Th2 and spring support th3

　　Spring hanger Th1 can be divided into three types: A, B and C. th1a (T1) is single ear connected spring hanger, th1b (T2) is double ear connected spring hanger, and th1c is threaded connected spring hanger. These three types of springs are mainly used for hanging on steel beam, pipe beam and bottom plate. Th2 (T3) is suitable for installation on steel beam; Th3 (T4) is mainly used in foundation, steel beam and floor; T5 parallel suspension type.

　　The VS and TD spring support hanger is mainly composed of cylindrical spiral spring, displacement indicator board, shell and nut. According to different installation methods, it can be divided into seven types: A, B, C, D, e, F and G. Type a upper thread suspension type, type B single ear suspension type, type C double ear suspension type, type D upper adjustment type, type e lower adjustment type, type F spring support type and type G parallel suspension type.