The Bender 9590 Chemical Pumps are available with or without water valves and timers.
This model has valves and timers, if you want a model without please call.

Features 3 Pumps - 20oz per/min
Adjustable timers - 1 sec to 1023 sec (so you can set exact amounts)
Inlet hose weights and strainers 
20 gpm [68 lpm] water flow rate
Can be used with 8950, 9650 and other wash controls
CSA approved