Assembling method for corrugated pipe seal track ball valve with split type valve rod structure

• Main Authors: WANG JIANHUA, WANG JINGJIANG, WANG ZHIWEI
• Format: Patent
• Language: Chinese; English
• Published: 10.01.2020
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

An assembling method for a corrugated pipe seal track with split type valve rods sequentially comprises the following steps that firstly, a packing bushing A sleeves the upper end of a lower valve rod; secondly, the lower valve rod is mounted in an upper valve rod, and a guiding pin is arranged in a double through hole of the upper valve rod; thirdly, the guiding pin and the double through hole ofthe upper valve rod are welded together; fourthly, an anti-rotation block is fixed to the middle end of the upper valve rod through a set screw; fifthly, the upper end of a corrugated pipe is weldedto the lower end of the upper valve rod, and the lower end of the corrugated pipe is welded to the inner ring of a metal gasket arranged between a valve cover and a right valve body; and sixthly, thesplit type valve rods, the packing pressing sleeve, the corrugated pipe and the metal gasket assembled in the steps from the first step to the fifth step are mounted on the top of the right valve body. Through the above assembl