SFW-AF+a Breather caps

Features

The SFW-AF (registered design) breather cap maintains a reservoir of air under pressure above the oil level within the limits established in the design stage to avoid deformation of the tank walls. Benefits:

• it reduces reservoir air volume intake keeping clean oil and filter;

• it improves suction pump action under working conditions reducing cavitation phenomenon;

• it prevents fluid leakage when the system is part of a mobile unit;

• it reduces foam in fluid.

SFW-AF caps are made with a special internal geometry which stops the leakage of the fluid to the outside.

The 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.

 

 

Special executions on request

• Black cover without graphic symbol.

• Orange cover.

• Orange cover without graphic symbol.

• Yellow cover.

• Yellow cover without graphic symbol.

• Dipstick can be supplied in different lengths and/or complete with MAX-MIN level lines.