SFN. Breather caps Technopolymer up to 100°C


  • RoHS
  • PA
  • g10030

Description

Main specifications

Material

Polyamide based (PA) technopolymer.
  • Cover: RAL 2004 orange, semi-matte finish, marked "OIL".
  • Threaded connector: 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.70-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 for execution with "tech-foam" air filter.

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.

Special executions

Special executions on request

  • Cover, RAL 2004 orange, without "OIL" mark.
  • Black cover with or without "OIL" mark.
  • Threaded connector also with NPT thread (National Taper pipe Thread - ANSI-ASME B1-20) for the codes marked with # in the table.
Breather caps Technopolymer up to 100°C SFN.
SFN.
Filter
Code Description d D L d2 h Weight
56151 SFN.30-1/4# G 1/4 31 29.5 8 9.5 10
53901 SFN.30-3/8 G 3/8 31 29.5 10 9.5 10
53911 SFN.30-1/2 G 1/2 31 29.5 12 9.5 11
56181 SFN.40-3/8# G 3/8 42 36.5 10 11.5 20
56201 SFN.40-1/2# G 1/2 42 36.5 12 11.5 21
53921 SFN.40-3/4# G 3/4 42 36.5 18 11.5 20
53931 SFN.40-1 G 1 42 36.5 18 11.5 20
56241 SFN.57-3/4# G 3/4 57 42 18 14 38
56261 SFN.57-1 G 1 57 42 23 14 40
53932 SFN.57-1¼ G1 1/4 57 44 28 16 41
53933 SFN.57-1½ G1 1/2 57 44 28 16 40
56381 SFN.70-2 G 2 70 59 23 17 79
SFN.
Filter
Code Description d D L d2 d3 h h1 Weight
56156 SFN.30-1/4+F# G 1/4 31 29.5 8 - 9.5 - 10
56161 SFN.30-3/8+F G 3/8 31 29.5 10 - 9.5 - 10
56171 SFN.30-1/2+F G 1/2 31 29.5 12 - 9.5 - 11
56191 SFN.40-3/8+F# G 3/8 42 36.5 10 - 11.5 - 19
56211 SFN.40-1/2+F# G 1/2 42 36.5 12 - 11.5 - 20
56221 SFN.40-3/4+F# G 3/4 42 36.5 18 - 11.5 - 20
56231 SFN.40-1+F G 1 42 36.5 18 - 11.5 - 21
56251 SFN.57-3/4+F# G 3/4 57 42 18 - 14 - 37
56271 SFN.57-1+F G 1 57 42 23 - 14 - 38
56281 SFN.57-1¼+F G1 1/4 57 44 28 - 16 - 39
56291 SFN.57-1½+F G1 1/2 57 44 28 - 16 - 40
54701 SFN.70-3/4+F# G 3/4 70 63 16 35 15 6 76
54711 SFN.70-1¼+F G1 1/4 70 59 23 - 17 - 77
56391 SFN.70-2+F G 2 70 59 23 - 17 - 82
SFN.
Filter
Code Description D L d2 d4 h Weight
54731 SFN.70-BA+F 70 56 23 39 14 85