Flostats maintain liquid or gas flow at a preselected rate despite line pressure fluctuations. No power or external flow input is needed. Using an internal orifice to measure flow, the differential pressure produced drives an integral control valve.

Flostat control is based on flow measurement using an internal orifice. This means that the Flostat requires a small pressure drop in the line: the minimum value is quoted in the tabulation. Two types of Flostat are available for each model, depending on whether the orifice is positioned on the inlet or outlet of the Flostat.

Liquids: Type A units are used for all applications, whether upstream or downstream pressures are subject to fluctuations.
Gases: Type A units are used when the supply or upstream pressure is relatively constant, and the major pressure variation is on the downstream side of the unit.

Type B units are used when the supply pressure changes are the major problem (e.g. distribution line) but downstream or discharge pressure is relatively constant (e.g. atmospheric).

For information on larger models please Contact Us

Suitable for:

• Fuel flow to multiple burners
• Protection of metering systems from overloading
• Balancing flows in reverse osmosis water purification
• Blend mixture control
• Maintaining CO2 feed rates in breweries
• Heat exchange flow control for computer systems
• Ensuring constant filter flow despite increasing blockage
• Constant rate sampling systems
• Protection from effects of line breaks
• Precise process control

Features:

• Entirely automatic - no external power needed
• Suitable for use on hazardous fluids - totally intrinsically safe
• High response speed for close flow control
• High long term reliability
• Wide rangeability - adjust to site requirements