*Liquid Level Proportioning Control, 22 GPM @ 50 PSI, 10:1 to 512:1 Dilution Range, Siphon Breaker

DEMA "Snap-acting" Mixing Valves provide automatic mixing for solution supply tanks. Allows you to have a constant chemical mixture without hand mixing. All valves are magnetically operated except the Model 436-21 which is mechanically operated.

437-21 have a 3/4" FPT inlet port. Operating pressure is 20 to 150 PSI. Maximum temperature is 140° F. Now standard with plastic bodies for added corrosion resistance.

Standard Features:

• EPDM diaphragm and stainless plunger for tight seating
  
• Heavy-duty polyethylene float
  
• Siphon breakers to prevent back-flow of chemicals into fresh water lines
  
• Mounting bracket (as shown)
  
• 8' of Vinyl chemical tube with stainless steel foot valve.
  

*Standard with 13 metering tips for exact dilution ration.