Isogate® Autoball AB3 ball valve

The Isogate® Autoball™ AB3 valve is specially designed to enable quick changeover between duty and standby pumps in the toughest slurry applications.

 

The Autoball AB3 valve provides a simple automatic changeover system without the costly process control systems otherwise needed. The low density ball inside the valve is automatically transferred to clock the inactive inlet once a pump has started. There is also the possibility of running both pumps at once if the system so requires.

 

With more than 20 years of check valve experience, Weir Minerals has devised a simple, fully serviceable 3-way check valve for the most arduous slurry duties. Integral to the design are replaceable wear components and stainless steel fasteners to improve maintenance times and reduce maintenance costs

 

Features
 

• Size Ranges

    ○ 50mm to 600mm

• Construction

    ○ Body: Mild Steel

    ○ Lining: Natural Rubber, Neoprene, Bromobutyl

    ○ Flanges: ANSI 150, Table D, Table E, Victaulic

• Pressure rating

    ○ 80-150mm       1034 kpa  (690 kpa for Table D)

    ○ 200-350mm     690 kpa

    ○ 400-600mm     520 kpa

Note: The Autoball AB3 valve is not a positive isolation valve and will require positive isolation valves in the process line for maintenance to be carried out on the pumps.

Operation Principal: When the active pump starts, the ball is forced across to the inactive inlet as pressure builds. Adequate static head is required above the valve to ensure the ball is firmly seated. If both pumps are operated, the ball will remain between the two lines of flow.