Plastic Filler Breathers

The SPB, SPBN and SES series filling and venting filters from STAUFF are the compact solution for filling and venting hydraulic tanks. They combine the functions of a tank filler neck and a breather in one component and ensure clean filling and permanent ventilation of the tank - while at the same time protecting against the ingress of dirt. Thanks to the lightweight design made of glass fibre-reinforced polyamide, the filters are corrosion-resistant and ideal for use in stationary and mobile hydraulic systems.

The filters allow the hydraulic tank to be filled and ventilated in a single step. During operation, integrated air filter elements ensure permanent ventilation and prevent the ingress of dirt particles. Pressurisation can be activated as an option:

• When the liquid level rises, deaeration only takes place when the preset pressure is exceeded.

• Ventilation is guaranteed at all times when the liquid level drops.

This pre-tensioning supports the pump's suction process, reduces foaming and cavitation and extends the service life of the fluid as well as the maintenance intervals.

The plastic filling and venting filters from STAUFF are characterised by the following properties:

• Temperature range: -40 °C to +120 °C

• Materials: glass fibre reinforced polyamide (body and cap), NBR seals

• Connection types: BSP, NPT, clamping jaws, bayonet, flange to DIN 24557-2

• Air flow rate: up to 1.00 m³/min depending on type

• Filter elements: foam, glass fibre or filter paper in various finenesses

• Compact design for easy installation

• High resistance to corrosion and chemicals

• Flexible connection options for different installation situations

• Extended fluid service life due to pressurisation

• Large selection of accessories for individual requirements