SFX+P+aBreather caps

With anti-splash semi-discs, without air filter

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

Technical datasheet

With anti-splash semi-discs, without air filter

SFX+P+a

With anti-splash semi-discs, without air filter

SFX+a

Without air filter

SFX+P+F+a

With anti-splash semi-discs and air filter

SFX+F+a

With air filter

SFX+P+a

Reset

Catalogue	Description	D	d	a#	L	d₂	d₃	l₁	h

53462	SFX.30-1/2+P+a	31	G1/2	188	29.5	12	18	26	9.5	26
53542	SFX.40-1/2+P+a	42	G1/2	184	36.5	12	18	28.5	11.5	35
53582	SFX.40-3/4+P+a	42	G3/4	184	36.5	17	23	28.5	11.5	35
53622	SFX.40-1+P+a	57	G1	184	42	23	30	28.5	11.5	35
53662	SFX.57-3/4+P+a	57	G3/4	184	42	18	23	31	14	49
53702	SFX.57-1+P+a	57	G1	184	42	23	30	31	14	49
53742	SFX.57-1¼+P+a	57	G1 1/4	184	44	32	30	33	16	49
53782	SFX.57-1½+P+a	57	G1 1/2	184	44	38	30	33	16	49
53246	SFX.30-M20x1.5+P+a	31	M20x1.5	188	29.5	12	18	26	9.5	26
53266	SFX.30-M22x1.5+P+a	31	M22x1.5	188	29.5	12	18	26	9.5	26
53286	SFX.40-M24x1.5+P+a	42	M24x1.5	184	36.5	18	18	28.5	11.5	35
53306	SFX.40-M26x1.5+P+a	42	M26x1.5	184	36.5	18	23	28.5	11.5	35
53326	SFX.57-M30x1.5+P+a	57	M30x1.5	184	42	23	23	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.

Flat dipstick

Flat section phosphatised steel.

On request and for sufficient quantities dipstick can be supplied in different lengths and/or complete with MAX-MIN level lines.

Standard executions

SFX+a: with splash guard, without air filter.

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

SFX+P+a: with anti-splash semi-discs, without air filter.

SFX+P+F+a: with 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+a 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.