FDQ41F large diameter flange anti-theft ball valve

产品厂家：

上海永要阀门厂有限公司

厂家宗旨：

“永生存，要品质精益求精”

产品质量：

保2年

& 1. Overview of the anti-theft ball valve
The large-diameter locking ball valve is a product successfully designed by our company based on the losses caused by the user's failure to pay in time on the heating system and the frequent oil theft incidents in the oil field. It has It has good anti-theft performance, easy opening and closing, stable sealing effect and long service life.
2. Principle of anti-theft ball valve
After installation, take the small hexagon on the upper end of the wrench and unscrew the small hexagonal screw on the upper cover of the valve. Remove the cover. There is the lock cylinder in the middle. If the lock cylinder is old, it will be used with a key. To open the lock with a key, if it has a combination lock cylinder, take out the lock cylinder and use the lower end of the accessory wrench to open or close, clockwise to close and counterclockwise to open.