Features: YFNQ German head compensation throat clamp is another deformation of German partial head throat clamp, is to add a spring plate inside the belt ring, the spring plate stores a large amount of re-tightening energy when tightening, can maintain long-term radial tightening force, especially suitable for hose connections with large temperature changes, built-in spring and hose shrinkage direction opposite, to ensure sealing effect. The asymmetrical shell sleeve design prevents the pipe clamp from tilting when tightening the clamp, which can ensure the uniform conduction force and installation safety during tightening, and the installation surface has no convex design after assembly, which can ensure that the clamp is evenly contacted by pressure during tightening, ensuring no tightening blind spots, even in different temperature ranges, it can also play a compensating role The two teeth on top of it can ensure that the clamp is firmly pre installed on the hose, which can achieve pre installation of the worm clamp on the hose, thereby reducing the installation rhythm of the rubber hose. The pre installation is firm and will not fall off during transportation. Product advantages：even under large temperature differences, it can maintain a long-term tightening effect and improve the connection and sealing stability of the hose. Application areas：suitable for automobiles, ships, transportation machinery manufacturing industry and other fields with high fastening requirements.