The General principles of this system. Using the theory of strong suction from water flowing through the pipe (Venturi Principal) as the basis, but add an important added: "the control ratio (Ratio Controller) when water ran through the valve entrance (Inlet) of the high speed device will cause the voltage around the entrance and the channels foam cleaners (Receiver or Throat) decreased. As a consequence, Mixing ratio (liquid foam) foam is a higher pressure within the package pushed to run into this part via a measurement of the amount of the ingredients that are blocking the small diagonal hole exists. While releasing water flows into the control, the ratio would have to increase acceleration, voltage decrease, which will become a "reference" voltage for a kit to send liquid foam that is used to make foam liquid pressure is equal to the pressure of the water before mixing the ingredients to produce a foam (Foam Solution) and spray from nozzles (Nozzle) is a "mixed" foam (Foam Finished) will have a foam and water pressure valve, measure (volume ratio) each, but a separate display in the same gauge. The haves in the valve, measure the voltage of each input voltage of the foam will be balanced against the pressure of the water valve to adjust by hand, while the foam liquid flowing through tubing. Pressure lost foam mix device (the Proportioner) is 25-30 PSI maximum flow rate is set in the control flow, while the ratio of minimum rates, which will make the mixture foams. approximately 15% of the maximum flow rate of the device, you can get it. Balanced pressure systems, foam composite device (Balanced Pressure System) is widely used because it can be used with the water pressure and flow rate in several levels. In particular, the system measuring ingredients, users do not need to check the quantity of water and foam cleaners for any mix formula. Fire performance.
การแปล กรุณารอสักครู่..