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SFN.
Breather caps
Without air filter, marked "OIL"
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SFN-N
Breather caps
Without air filter, without "OIL" mark
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SFN+F
Breather caps
With air filter, marked "OIL"
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SFN+F-N
Breather caps
With air filter, without "OIL" mark
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SFN-BA+F
Breather caps
With air filter, bayonet connection, with the wording “OIL”
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SFN-BA+F-N
Breather caps
With air filter, bayonet connection, without the wording “OIL”
Polyamide based (PA) technopolymer, semi-matte finish.
- SFN.: RAL 2004 orange, marked "OIL".
- SFN......-C9: RAL 9005 black colour, marked "OIL".
- SFN......-C2-N: RAL 2004 orange, without "OIL" mark.
- SFN......-C9-N: RAL 9005 black colour, without "OIL" mark.
Threaded fitting
Polyamide based (PA) technopolymer, black colour, semi-matte finish.
Packing ring
NBR synthetic rubber flat washer.
Standard executions
- SFN.: without air filter.
- SFN+F: with "tech-foam" air filter in polyurethane foam mesh (polyester base), air filtration 40 µ.
- SFN-BA+F: with "tech-foam" air filter in polyurethane foam mesh (polyester base), air filtration 40 µ.
Zinc-plated steel sheet bayonet.
Chrome-plated steel safety chain.
Maximum continuous working temperature
100°C.
SFN. breather caps, owing to their high air flow rate, are particularly suitable for use on hydraulic power packs or tanks subject to rapid changes in liquid volume.
Technical data
Air flow rate for the different executions of breather caps can be obtained from the diagram on the basis of the difference of air pressure inside and outside the reservoir.
Threaded connector also with NPT thread (National Taper Pipe Thread - ANSI-ASME B1-20) for the codes marked with # in the table.