Description
Stauff Spin-On Filter Elements SFC-35/36 and SFCT-35/36
The Stauff Spin-On Filter Elements SFC-35/36 and SFCT-35/36 are the original replacement solution to ensure the efficiency of hydraulic filtration systems. These components are designed to operate in circuits with operating pressures up to 12 bar (174 PSI), delivering high contaminant retention performance in accordance with ISO 3968 standards.
Compatibility and Applications
The range is divided into two main series based on the specific application:
- SFC-35/36 Series: Designed for use with Stauff Spin-On filters of the SSF-12 series equipped with G3/4 threaded ports.
- SFCT-35/36 Series: Specifically developed for use with Tank Top Spin-On filters of the SSFT-12 and SSFT-12B series.
Technical and Construction Features
All elements in the series feature a G3/4 connection thread and use NBR (Buna-N®) seals with Type A sealing profile. The structure is tested to withstand a minimum burst pressure of 20 bar (290 PSI).
The SFCT series stands out for the integration of additional components essential for specific applications:
- Bypass Valve: Set at 1.7 bar (25 PSI) to ensure oil flow under clogged conditions or during cold starts.
- Anti-Drain Back Diaphragm: Prevents the line or filter from draining when the system is shut down.
Filter Media and Performance
The elements are available with different filter media to meet various fluid cleanliness requirements:
- Filter Paper: Available with 10 µm and 25 µm filtration ratings. Maximum allowable differential pressure: 5 bar.
- Inorganic Glass Fibre: For high-efficiency filtration (3 µm, 10 µm, 25 µm). Maximum differential pressure: 10 bar.
- Wire Mesh: For coarse filtration (60 µm, 125 µm). Maximum differential pressure: 10 bar.
Operating Conditions
The filter elements are suitable for operation within a temperature range of -30 °C to +100 °C. Standard chemical compatibility covers mineral oils.
Summary technical table of the main features of the Stauff Spin-On Filter Elements SFC-35/36 and SFCT-35/36.
| Feature | Value |
|---|---|
| Product Series | SFC-35/36 and SFCT-35/36 |
| Connection Thread | G3/4 |
| Compatible Filters (SFC) | Stauff SSF-12 |
| Compatible Filters (SFCT) | Stauff SSFT-12, SSFT-12B |
| Max Operating Pressure | 12 bar (174 PSI) |
| Min Burst Pressure | 20 bar (290 PSI) |
| Bypass Valve (SFCT only) | 1.7 bar (25 PSI) |
| Operating Temperature | -30 °C … +100 °C |
| Seal Material | NBR (Buna-N®) |
| Available Filter Media | Paper, Glass Fibre, Wire Mesh |