Spring ball valve

The utility model provides a spring ball valve, wherein the shell body be divided into about two parts, go up the casing, down the casing pass through threaded connection, the peach shaped ball be arranged in the casing, peach shaped ball surface heat cure bonding one deck butadiene acrylonitrile rubber, peach shaped ball below is equipped with foraminiferous base, guide post upper end put into the base of peach shaped ball below, the lower extreme of guide post passes spring inserted to the hole in, the advantage does: spring ball valve ball stability is high, and this spring has cushioned the impact of liquid stream to a spheric seat part (valve ball), prevents the long -time violent striking of valve ball and basket and the damage. On the other hand still can rely on elasticity to force the seat to seal, has very high reliability and gao nai back pressure ability. 本实用新型提供种弹簧式球阀，其中所述的外壳体分为上下两部分，上壳体、下壳体通过螺纹连接，所述的桃形球位于上壳体中，所述的桃形球外表面热硫化粘合层丁腈橡胶，桃形球下方设有带孔的底座；所述的导向柱上端放入桃形球下方的底座中，导向柱的下端穿过弹簧插入到孔中；优点为：弹簧式球阀球稳定性高，该弹簧