BRONKHORST FLEXI-FLOW Compact Instruction Manual page 15

Instrument with regular fluid couplings
Use the threaded mounting holes in the bottom of the instrument base. Consult the
drawing for the exact size and locations.
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Instrument with down ported fluid couplings
· Consult the dimensional drawing
pattern.
Follow the mounting instructions for FF-annD instruments
·
2.2.1 Piping requirements
For reliable performance, make sure the fluid stream is uncontaminated. If necessary, use an inlet filter to ensure a
·
particle free media stream. Select a filter with a maximum pore size of 20 µm and a surface area that minimizes the
pressure drop.
· If back flow could occur, the use of a check valve is also recommended.
Use piping or tubing that is suitable for the operating conditions of the application (media, maximum temperature,
maximum operating pressure).
2.2.2 Fluid connection
· Connect the FLEXI-FLOW to the fluid system in accordance with the indications in the
· Consult the dimensional drawing
Make sure connector sizes match; do not mix metric (mm) and imperial (inch) sizes.
·
· Make sure all connectors and tubing are free from dirt and debris.
· Follow the mounting instructions
Do not apply fluid pressure until all required fluid connections and electrical connections have been made.
Check the fluid system for leak tightness after any modification and before applying full operating pressure, especially
when using hazardous media (e.g. toxic or flammable).
2.2.3 Preventing pressure shocks
FLEXI-FLOW instruments can handle pressure shocks in the system well, but are not insensitive to pressure
fluctuations. For optimal control stability, observe the following guidelines:
· Provide a stable (pressure controlled) upstream pressure; put sufficient buffer volume between a pressure
regulator and the instrument. As a rule of thumb, install pressure regulators at a distance of at least 25 times the
pipe diameter from the inlet or outlet of the instrument.
· When using multiple instruments and/or control valves, prevent interference by putting piping with sufficient
buffer volume between components.
9.17.158G
Bronkhorst®
for details about the instrument footprint and mounting
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for the according instrument model for details about the fitting cavities.
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for the according fluid connectors.
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Instruction Manual FLEXI-FLOW™ Compact
dimensional
.
product overview .
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