SFX+PBreather caps

With anti-splash semi-discs, without air filter

with splash guard and external anti-splash semi-discs, technopolymer

Technical datasheet

With anti-splash semi-discs, without air filter

SFX+P

With anti-splash semi-discs, without air filter

SFX+F

With air filter

SFX+P+F

With anti-splash semi-discs and air filter

SFX.

Without air filter

SFX+P

Reset

Catalogue	Description	d	D	L	d₂	d₃	l₁	h

53452	SFX.30-1/2+P	G1/2	31	29.5	12	18	26	9.5	26
53532	SFX.40-1/2+P#	G1/2	42	36.5	12	18	28.5	11.5	35
53572	SFX.40-3/4+P#	G3/4	42	36.5	17	23	28.5	11.5	35
53612	SFX.40-1+P	G1	42	36.5	23	30	28.5	11.5	35
53652	SFX.57-3/4+P	G3/4	57	42	18	23	31	14	49
53692	SFX.57-1+P	G1	57	42	23	30	31	14	49
53732	SFX.57-1¼+P	G1 1/4	57	44	32	30	33	16	49
53772	SFX.57-1½+P	G1 1/2	57	44	38	30	33	16	49
53242	SFX.30-M20x1.5+P	M20x1.5	31	29.5	12	23	26	9.5	26
53262	SFX.30-M22x1.5+P	M22x1.5	31	29.5	12	23	26	9.5	26
53282	SFX.40-M24x1.5+P	M24x1.5	42	36.5	18	30	28.5	11.5	35
53302	SFX.40-M26x1.5+P	M26x1.5	42	36.5	18	30	28.5	11.5	35
53322	SFX.57-M30x1.5+P	M30x1.5	57	42	23	30	31	14	49

# Types available on request with NPT thread (National Taper Pipe Thread - ANSI-ASME B1-20).

Material

Polyamide based (PA) technopolymer.

Cap: semi-matte finish, black colour, with “fill” symbol.

Threaded connector and external anti-splash semi-discs, black colour.

Packing rings

NBR synthetic rubber.

Standard executions

SFX.: with splash guard, without air filter.

SFX+F: with splash guard, 'tech-foam' air filter in polyurethane foam mesh (polyester base), air filtration 40 µ.

SFX+P: with splash guard and external anti-splash semi-discs, without air filter.

SFX+P+F: with splash guard and external anti-splash semi-discs and “tech-foam” air filter in polyurethane foam mesh (polyester base), air filtration 40 µ.

Maximum continuous working temperature

100°C.

Features and applications

The SFX. breather caps are made with a special internal geometry (Elesa patent) that prevents the leakage of fluids through a linear labyrinth (splash guard effect) and promotes condensation of the outgoing vapours.

The external snap-on anti-splash discs (execution+P) located at the mouth of the threaded fitting hole, are made up of fins offset from each other so as to constitute an additional labyrinth in the most critical cases of strong fluid projections.

Technical data

Air flow rate for each model can be determined from the graph here below by calculating the difference between the pressure inside and outside the reservoir.