SRFL-D
The Stauff SRFL-D Series Inline Duplex Filters are specifically designed for in-line hydraulic applications requiring absolute operational continuity. Consisting of two housings connected by a gate-type changeover valve, they allow maintenance and replacement of filter elements without shutting down the system. This series supports maximum nominal flow rates of up to 7000 l/min and operating pressures up to 14 bar, offering DIN, ANSI, or SAE flanged connections.
The Stauff SRFL-D Series Inline Duplex Filters represent an advanced engineering solution for hydraulic and lubrication systems where system shutdown for maintenance is not a viable option. The “Duplex” (double) configuration ensures that fluid flow is never interrupted, maintaining constant operational efficiency.
The core of the SRFL-D system consists of two filter housings connected to each other. Flow management is handled by a special gate valve, operated by a lever or handwheel, which allows the flow to be diverted from one filter housing to the other. This mechanism enables operators to isolate one of the two housings to replace the filter elements while the other continues to operate at full capacity, avoiding costly system downtime.
The filter elements are designed as basket strainers, a construction feature that retains contaminants inside the element during replacement operations, preventing fluid recontamination.
The SRFL-D series covers a wide range of sizes, from model 160 up to model 3600, to accommodate different flow rate requirements.
To ensure robustness and industrial adaptability, the filter housings are manufactured in carbon steel, with stainless steel available as an option upon request. The available connections comply with the most widely used international standards:
Standard sealing materials include NBR (Buna®) or FKM (Viton®), ensuring optimal sealing performance based on the process fluid and operating temperature.
The SRFL-D series supports various types of filter media to match the required filtration grade and fluid characteristics:
| Feature | Value |
|---|---|
| Construction Type | Inline Duplex (Double) |
| Max Operating Pressure | 14 bar / 200 PSI |
| Max Nominal Flow Rate | Up to 7000 l/min / 1850 US GPM |
| Housing Material | Carbon Steel (Standard), Stainless Steel (On request) |
| Seal Materials | NBR (Buna®), FKM (Viton®) |
| Flanged Connections | ANSI, DIN, SAE (ISO 6162-1/2) |
| Fluid Compatibility | Mineral oils, lubrication oils, water |
| Available Sizes (SRFL-D) | 160, 200, 300, 600, 1200, 1800, 2400, 3600 |