SFV-AF Breather caps

Technopolymer, high filtration, with valve and splash guard

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Technical specifications

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Main specifications

Cover

Polyamide-based (PA) technopolymer, black colour RAL 9005, matte finish, laser engraved graphic symbols.

Threaded fitting

Polyamide-based (PA) technopolymer, with splash guard and hexagon nut, black colour, semi-matte finish.

Packing ring

NBR synthetic rubber flat washer.

Overpressure valve

Technopolymer with NBR synthetic rubber O-ring

Stainless steel spring, set at around 0.350 bar or 0.700 bar.

Air filter

Polyester with a filtration rate of 3µm (efficiency > 98%).

Standard executions

  • SFV-AF-350MB: valve opens when pressure exceeds 0.350 bar (set at 350 mb).
  • SFV-AF-700MB: valve opens when pressure exceeds 0.700 bar (set at 700 mb).

Maximum continuous working temperature

100°C.

General information

Features

SFV-AF (registered design) breather caps are suitable for all applications (gearmotors, variators or compressors) in which the internal pressure of the tank must not exceed a certain value (350 or 700 mb).

In these cases, the safety valve of the cap allows the expulsion of the exceeding air in the reservoir, thus re-establishing the pressure values for which the valve is set.

Valve (closed in normal pressure conditions) prevents dust from getting in and oil-losses.

SFV-AF breather caps are made with a special internal geometry which stops the leakage of the fluid to the outside, even in the most critical cases of strong fluid projections.

The existing hexagon on the threaded fitting makes it possible to apply, using a wrench, a greater tightening torque on the cap, ensuring better compression of the gasket.

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.

SFV-AF-350MB - For pressures above 350MB 
SFV-AF-350MB - For pressures above 350MB 
Other executions

Special executions on request

  • Black cover without graphic symbol.
  • Orange cover.
  • Orange cover without graphic symbol.
  • Yellow cover.
  • Yellow cover without graphic symbol.
Elesa
Models all rights reserved in accordance with the law. Always mention the source when reproducing our drawings and photos.

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