SELF-SANITIZATION AGAINST BACTERIA AND FUNGI
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SFW. (inch sizes) Breather caps
with double valve, technopolymer
Main specifications
Material
Polyamide based (PA) technopolymer.
- Cover: RAL 2004 orange, semi-matte finish, with graphic symbol "valve".
- Threaded connector: black colour, semi-matte finish.
Packing ring
NBR synthetic rubber.
Overpressure valve
Technopolymer with NBR synthetic rubber O-ring and stainless steel spring.
Set at around 0.350 bar (0.700 bar on request).
Suction valve
Technopolymer sealing disk with NBR synthetic rubber O-ring and stainless steel spring.
Set at around 0.030 bar.
Ring-shaped air filter
"Tech-foam" polyurethane foam mesh (polyester base), air filtration 40 µ.
Maximum continuous working temperature
212°F (100°C).
General information
Features
The use of SFW. pressurised breather caps which create a pressure plenum chamber right above the oil level within tested limit conditions, in order to avoid any reservoir deformation, offers the following advantages:
- reduces reservoir air volume intake keeping clean oil and filter
- improves suction pump action during working conditions reducing cavitation phenomenon
- prevents fluid leakage when the system is part of a mobile unit
- reduces foam in fluid.
Technical data
Air flow rate for each model can be determined from the graph calculating the difference between the pressure inside and outside the reservoir.
Working in an hydraulic circuit
Other executions
Special executions on request
Black cover.
Models all rights reserved in accordance with the law. Always mention the source when reproducing our drawings and photos.