Overview
The document discusses the Pi 0201 air breather and ventilation filters designed for mobile and stationary hydraulic tanks. These filters are part of the industrial filtration solutions provided by Filtration Group.

Specifications
- Compact, disposable plastic filters with various connection threads.
- Available with intake and exhaust valves.
- Long service life with optional oil mist separation using MOL elements.
- Temperature range: -30°C to +100°C.
- Volume flow: Up to 650 L/min without valves, 450 L/min with valves.
- Filter elements include MIC-L (Cellulose), SM-L (Fiberglass), MOL (Coalescer), and MB-L (Meltblown).

Functional Description
The Pi 0201 air breather features counterbalanced valves that manage air flow in and out of oil tanks under alternating pressures. The inflow valve maintains negative pressure, reducing foaming, while the outflow valve maintains overpressure, extending filter life and improving pump efficiency. MOL elements prevent oil aerosol escape, ensuring clean working spaces.

Scope of Application
- Suitable for fluid tanks in construction and agricultural machinery, lubrication systems, and transmission housings.
- Ideal for hydraulic systems prone to foam due to oil variations.
- Prevents contamination by oil aerosols.

Materials
- Cover, base, and valve plate made of fiberglass-reinforced polyamide.
- Gaskets made of NBR, springs of spring steel, and oil dipstick of stainless steel.

Connection Threads
- G 3/4, M 42 x 2, M 30 x 1.5, NPT 3/4.
- Special versions and additional threads available on request.

Contact Information
Filtration Group GmbH, Schleifbachweg 45, D-74613 Öhringen, Germany.
Phone: +49 7941 6466-0, Fax: +49 7941 6466-429, Email: [email protected], Website: www.filtrationgroup.com