Cycle Counting for Air-Driven Double Diaphragm Pumps

Why Count Cycles? Counting thenumber of cycles provides a method of measuring how much fluid is being transferred through the pump. Everytime a cycle is completed, an impulse is sent from the cycle count valve. Thisimpulse can be interpreted by a data acquisition center for automated input to a PC, PLC, relay or switch. The control device can then regulate a valve on the air line or fluid discharge line based on a measured number of cycles.
What Applications Benefit from Cycle Counting? Knowing the number of cycles elapsed is ideal for 1) monitoring how much additive a system has received, 2) adding a precise dose of fluid based on a set number of cycles or 3) for cycle based maintenance rather than time interval maintenance. Due to fatigue, diaphragms have a cycle life. When pumping aggressive or hazardous fluids, a total cycle count is valuable information for a preventive maintenance program. With use of the cycle count valve, the number of cycles elapsed can be monitored from any work station that is networked with the cycle counter.
What size pumps offer Cycle Counting? The cycle count valve is available for 1/4”, 3/8”, 1/2”, 1”, 1-1/2”, 2” and 3” pumps.
What components come with the cycle count valve? The cycle count valve is integral to the air valve. The sensor wire (24G 2 wire cable, 24” long) at the bottom of the air valve is provided (see photo). The configuration for data acquisition and control is not provided.

To Order…
To order a pump with the cycle count valve assembled on the pump, add Option Code –A42 to the pump model number

*Contact All-Flo for pricing and custom configurations.