Float valves automatically maintain a desired level of proportioned mixture in any drum, tank or other type of reservoir. DEMA uses magnetically activated “snap acting” float valves that provide full water flow at 2.5 gpm, 4 gpm and 22 gpm to activate the chemical proportioners and a water valve only that fills reservoirs at up to 64 gpm. DEMA’S float valve systems are ideal for car washes, carpet cleaning machines; rapid filling of totes and anywhere a large volume of chemical or water is needed..
Watch Guard
WATCH GUARD™ is the reservoir-mounted float valve system designed to cut service and maintenance costs. Watch Guard delivers reliable water valve activation every time with superior features for greater reliability. The float is filled with water soluble material instead of the standard system-clogging sand. The 90° chemical barb rotates 180° to ensure the chemical pick-up tube does not kink. And metering tips screw in, ensuring proper installation and no damage during maintenance. A number of different models are available for different fill rates and chemical induction.Industrial Catalog
| Model No. | Induction Rates | Flow Rate—(GPM @ 40 PSI) | Backflow Protection | Mounting Bracket | |
| min | max | ||||
| Chemical Induction Systems | |||||
| 440.22T | 430:1 | 4:1 | 4.0 | No | Yes |
| 440.22TX | 430:1 | 4:1 | 4.0 | No | No |
| 440.23T | 430:1 | 4:1 | 4.0 | Action Gap | Yes |
| 440.23TX | 430:1 | 4:1 | 4.0 | Action Gap | No |
| 440.32BT | 387:1 | 7:1 | 4.0 | Action Gap | Yes |
| 440.24 | 195:1 | 2:1 | 2.5 | Action Gap | Yes |
| 437P.21 | 512:1 | 10:1 | 22.0 | Siphon Breaker | Yes |
| Water Fill Systems | |||||
| 440N | N/A | N/A | 6.0 | N/A | Yes |
| 440NX | N/A | N/A | 6.0 | N/A | No |
| 437PN | N/A | N/A | 64.0 | N/A | Yes |
| 437PNX | N/A | N/A | 64.0 | N/A | No |