FRD UFI
FRD UFI Return Line Filters offer a versatile solution for installation either on the top of the tank or externally (“external mounting”). Built with an anodized aluminum alloy body (or steel for larger sizes), they support operating pressures up to 20 bar. They ensure a maximum flow rate of 1500 l/min and integrate a bypass valve set at 3 bar. They are compatible with a wide range of hydraulic fluids and operate effectively between -25°C and +110°C.
The FRD series by UFI Filters is designed to provide maximum installation flexibility on the return line of hydraulic systems. These filters can be mounted either on the top of the tank (“tank top”) or externally along the piping, adapting to different system configurations and ensuring effective protection against contaminants.
The structure of FRD filters is robust and designed to withstand significant pressures:
The FRD series uses filter elements from the ERD family, available with different media technologies to meet every filtration requirement:
The filter element is designed to withstand a collapse differential pressure of 1 MPa (10 bar).
FRD UFI Return Line Filters stand out for their high operating capabilities:
The range offers a wide choice of connections: BSP, NPT, SAE threads and SAE 3000 psi flanges, with sizes ranging from 1/2″ to 4″. Filters can be equipped with visual or electrical clogging indicators (2 bar differential setting) for accurate maintenance monitoring.
| Feature | Value |
|---|---|
| Type | Tank-top return filter or external mounting |
| Maximum Flow Rate (Qmax) | 1500 l/min |
| Maximum Operating Pressure | 2 MPa (20 bar) |
| Element Collapse Pressure | 1 MPa (10 bar) |
| Bypass Setting | 300 kPa (3 bar) ±10% |
| Body Material (Standard) | Anodized aluminum alloy |
| Body Material (FRD 61–62) | Steel |
| Filter Media | Microfiber, cellulose, wire mesh, water removal |
| Operating Temperature | From -25°C to +110°C |
| Available Connections | BSP, NPT, SAE, SAE 3000 psi flanges (1/2″ – 4″) |