FM300S diaphragm float valve is a hydraulic controlled valve. It keeps the water level in the storage tank at a relatively stable level. The float control switch is installed in the water tank when the water level is high and is connected to the basic valve through the pipeline. When the water level rises and exceeds the maximum limited level, the float pilot valve will fully close and the basic valve automatically closed. When the water level drops to the lowest limited level, the float pilot valve will be fully open, the basic valve will automatically open for water supplement until the level in the water storage tank is controlled within the stable ideal range.
If the optional check feature is selected, when the back pressure is generated, the return fluid will enter the air chamber to close the valve to prevent the fluid from back flow.
Material Specifications
Body/Bonnet: Stainless Steel
Disc & Stem: Stainless Steel
Piping: Stainless Steel
Diaphragm: EPDM
Fasteners and Springs: Stainless Steel
Working Pressure Range
175PSI/235PSI/350PSI
10Bar/16Bar/25Bar
Temperature/Medium
0°C~100°C normal temperature water
Float Switch Parameters
Controller: ½″ Float Valve (to be purchased separately)
Body Material: Bronze/Stainless Steel
Please Provide the Following Data When Ordering
Valve figure number/size/pressure grade/connecting end type/other optional accessories
Note: In valve installation, it is strongly suggested that sufficient space should be left for easy maintenance in the future. A strainer shall be mounted in front of the valve to prevent foreign matters from blocking the valve.