The multi-valve control system consists of a signal distributor and a time/flow program controller, which are fixed in the waterproof controller housing. The signal distributor is a rotary guide valve that guides the opening and closing of each diaphragm valve on the liquid or gas signal source switching equipment, thereby completing the automatic control of the equipment system. The spool of the signal distributor is made of sturdy, corrosion-resistant, self-lubricating material, which has the characteristics of long service life and no maintenance. The valve to perform the operation is the hydraulic or pneumatic diaphragm valve that has been used at home and abroad. It can be 1.5″-6″ and can be used with 600-3000 tanks. This kind of valve is cheap, easy to install, and easy to maintain. Professionals can complete inspection, maintenance, replacement and other operations.
The distributor is driven to rotate by a small motor controlled by a time or flow programmer, or it can be rotated manually. Turning to different positions, one or several channels are opened or closed. The position number of the distributor channel corresponds to the system operation step (Figure 1 and Table 1). The opened channel guides the signal pressure source to drive the diaphragm valve, and at the same time Drain the other diaphragm valves and restore their normal positions.
The signal pressure source for driving the diaphragm valve can be liquid or gas. Since there is no need for continuous voltage like the control solenoid valve, the breakdown and maintenance work caused by electricity is greatly reduced.
Various combination designs of various distributors and time sequencers can meet the complex program control requirements of various water treatment systems.