External pressure inspection device for corrugated pipe assembly for valve

• Main Authors: ZHANG DALIN, FU BO, HE BIN, ZHANG BO, ZHANG QUANHOU, QIAN JIANG, LI MIN, GAO SHUANG, SONG LINHONG, YANG ZHIXIN, LI SHUANG, LI QIU, ZHANG WENLIANG, WU HONGLIN, ZHANG XIUHUA, YU XIANGLIN, ZHANG HAIBO, WANG XUE
• Format: Patent
• Language: Chinese; English
• Published: 05.11.2021
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The utility model discloses an external pressure testing device for a corrugated pipe assembly for a valve. The external pressure testing device comprises a sealing limiting device and a pressurizing cylinder body, the sealing limiting device comprises an upper flange and a lower flange, grooves are formed in the centers of the inner sides of the upper flange and the lower flange, through holes are formed in the upper flange and the lower flange in the centers of the grooves, and limiting bolts in the through holes are in threaded connection with sealing joints at the two ends of the to-be-tested corrugated pipe assembly; a sealing groove is further formed in the matching face of the sealing connector and the corrugated pipe assembly to be tested, a built-in radial sealing ring is further arranged at the corresponding position of the sealing groove, and a limiting boss is further arranged on the side wall of the groove. The corresponding positions of the peripheries of the upper flange and the lower flange ar