Spherical plug valve is provided with a protective tamper-proof cap may be operating solely with a service key or wrench tricoise

摘要

The subject of the invention is a valve provided with a tamperproof cap. The said control member is a cap including means for fastening the said cap with the manoeuvring key 3 forming part of the valve 2, with a means 13 for fixing the said cap onto the valve 2, with a means 16 acting as a cover or plug for the fixing means 13, with gripping means 18 for manipulating the control member, with dissuasion means located near the cap in order to prevent any manual manipulation or damage by means of a lever. The invention applies to the valves of cocks for fluids. IMAGE