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SFN.
Breather caps
Technopolymer
SFN.
Breather caps
Without air filter, marked 'OIL'
SFN-N
Breather caps
Without air filter, without 'OIL' mark
SFN+F
Breather caps
With air filter, marked 'OIL'
SFN+F-N
Breather caps
With air filter, without 'OIL' mark
SFN-BA+F
Breather caps
With air filter, bayonet connection, with the wording “OIL”
SFN-BA+F-N
Breather caps
With air filter, bayonet connection, without the wording “OIL”
Description
Main specifications
Cover
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.
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.
General information
Features and applications
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 each model can be determined from the graph calculating the difference between the pressure inside and outside the reservoir.
Other executions
Special execution on request
Threaded connector also with NPT thread (National Taper Pipe Thread - ANSI-ASME B1-20) for the codes marked with # in the table.
SFN.
| Color | D | d | L | d2 | h |  |
|||
|---|---|---|---|---|---|---|---|---|---|
| Code | Description | Actions | |||||||
| 53871 | SFN.30-16x1.5 | C2 - RAL 2004 | 31 | M16x1.5 | 29.5 | 10 | 9 | 10 |
|
| 53871-C9 | SFN.30-16x1.5-C9 | C9 - RAL 9005 | 31 | M16x1.5 | 29.5 | 10 | 9 | 10 |
|
| 53881 | SFN.30-18x1.5 | C2 - RAL 2004 | 31 | M18x1.5 | 29.5 | 10 | 9 | 10 |
|
| 53881-C9 | SFN.30-18x1.5-C9 | C9 - RAL 9005 | 31 | M18x1.5 | 29.5 | 10 | 9 | 10 |
|
| 53886 | SFN.30-20x1.5 | C2 - RAL 2004 | 31 | M20x1.5 | 29.5 | 10 | 9 | 11 |
|
| 53886-C9 | SFN.30-20x1.5-C9 | C9 - RAL 9005 | 31 | M20x1.5 | 29.5 | 10 | 9 | 11 |
|
| 53891 | SFN.30-22x1.5 | C2 - RAL 2004 | 31 | M22x1.5 | 29.5 | 13.5 | 9 | 11 |
|
| 53891-C9 | SFN.30-22x1.5-C9 | C9 - RAL 9005 | 31 | M22x1.5 | 29.5 | 13.5 | 9 | 10 |
|
| 53895 | SFN.30-12x1.5 | C2 - RAL 2004 | 31 | M12x1.5 | 29.5 | 6 | 9.5 | 10 |
|
| 53895-C9 | SFN.30-12x1.5-C9 | C9 - RAL 9005 | 31 | M12x1.5 | 29.5 | 6 | 9.5 | 10 |
|
| 53896 | SFN.30-14x1.5 | C2 - RAL 2004 | 31 | M14x1.5 | 29.5 | 8 | 9.5 | 10 |
|
| 53896-C9 | SFN.30-14x1.5-C9 | C9 - RAL 9005 | 31 | M14x1.5 | 29.5 | 8 | 9.5 | 10 |
|
| 53901 | SFN.30-3/8 | C2 - RAL 2004 | 31 | G3/8 | 29.5 | 10 | 9.5 | 11 |
|
| 53901-C9 | SFN.30-3/8-C9 | C9 - RAL 9005 | 31 | G3/8 | 29.5 | 10 | 9.5 | 11 |
|
| 53911 | SFN.30-1/2 | C2 - RAL 2004 | 31 | G1/2 | 29.5 | 12 | 9.5 | 12 |
|
| 53911-C9 | SFN.30-1/2-C9 | C9 - RAL 9005 | 31 | G1/2 | 29.5 | 12 | 9.5 | 12 |
|
| 53921 | SFN.40-3/4# | C2 - RAL 2004 | 42 | G3/4 | 36.5 | 18 | 11.5 | 24 |
|
| 53921-C9 | SFN.40-3/4-C9# | C9 - RAL 9005 | 42 | G3/4 | 36.5 | 18 | 11.5 | 24 |
|
| 53931 | SFN.40-1 | C2 - RAL 2004 | 42 | G1 | 36.5 | 18 | 11.5 | 23 |
|
| 53931-C9 | SFN.40-1-C9 | C9 - RAL 9005 | 42 | G1 | 36.5 | 18 | 11.5 | 23 |
|
| 53932 | SFN.57-1¼ | C2 - RAL 2004 | 57 | G1 1/4 | 44 | 28 | 16 | 44 |
|
| 53932-C9 | SFN.57-1¼-C9 | C9 - RAL 9005 | 57 | G1 1/4 | 44 | 28 | 16 | 44 |
|
| 53933 | SFN.57-1½ | C2 - RAL 2004 | 57 | G1 1/2 | 44 | 28 | 16 | 44 |
|
| 53933-C9 | SFN.57-1½-C9 | C9 - RAL 9005 | 57 | G1 1/2 | 44 | 28 | 16 | 43 |
|
| 56151 | SFN.30-1/4# | C2 - RAL 2004 | 31 | G1/4 | 29.5 | 8 | 9.5 | 10 |
|
| 56151-C9 | SFN.30-1/4-C9# | C9 - RAL 9005 | 31 | G1/4 | 29.5 | 8 | 9.5 | 10 |
|
| 56181 | SFN.40-3/8# | C2 - RAL 2004 | 42 | G3/8 | 36.5 | 10 | 11.5 | 21 |
|
| 56181-C9 | SFN.40-3/8-C9# | C9 - RAL 9005 | 42 | G3/8 | 36.5 | 10 | 11.5 | 21 |
|
| 56201 | SFN.40-1/2# | C2 - RAL 2004 | 42 | G1/2 | 36.5 | 12 | 11.5 | 22 |
|
| 56201-C9 | SFN.40-1/2-C9# | C9 - RAL 9005 | 42 | G1/2 | 36.5 | 12 | 11.5 | 22 |
|
| 56241 | SFN.57-3/4# | C2 - RAL 2004 | 57 | G3/4 | 42 | 18 | 14 | 42 |
|
| 56241-C9 | SFN.57-3/4-C9# | C9 - RAL 9005 | 57 | G3/4 | 42 | 18 | 14 | 42 |
|
| 56261 | SFN.57-1 | C2 - RAL 2004 | 57 | G1 | 42 | 23 | 14 | 40 |
|
| 56261-C9 | SFN.57-1-C9 | C9 - RAL 9005 | 57 | G1 | 42 | 23 | 14 | 42 |
|
| 56381 | SFN.70-2 | C2 - RAL 2004 | 70 | G2 | 59 | 23 | 17 | 84 |
|
| 56381-C9 | SFN.70-2-C9 | C9 - RAL 9005 | 70 | G2 | 59 | 23 | 17 | 84 |
|
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