Hydroline IFR4 – Inline Spin-On Filter
The Hydroline IFR4 is a lightweight, compact spin-on filter designed for low-flow pilot circuits and small hydraulic power units, handling flows to 70 LPM return and 20 LPM suction. Three head sizes cover port connections from 1/4" to 3/4" in BSPP, NPT, and UNF thread forms, with an S/ET element option that includes a built-in bypass valve.
Key Specifications:
- Construction: Die cast aluminium head; disposable spin-on element
- 3 head sizes: IFR4-02 (1/4") | IFR4-04 (1/2") | IFR4-06 (3/4")
- Max flow: 70 LPM return | 20 LPM suction
- Max pressure: 10 bar | Test: 15 bar | Burst: 20 bar
- Bypass: 1 bar standard (0.2 bar suction); S/ET-05 element has integral bypass valve
- Max temperature: 80°C
- Fluid: Mineral/petroleum based oils
- Port sizes: 1/4" (02) | 3/8" (03) | 1/2" (04) | 3/4" (06)
- Port thread options: BSPP | NPT | UNF (7/16"-20 | 9/16"-18 | 3/4"-16 | 1-1/16"-12)
- Post (element) thread: 3/4"-16 UNF | 1"-12 UNF
- 3 element sizes: S/ET-05 (15 LPM, integral bypass) | S/E-10 (35 LPM) | S/E-20 (70 LPM)
- Filtration grades: 10 µm / 25 µm nominal | 10 µm / 25 µm absolute
- Clog indicator: optional visual (GR) or electrical (ER), ordered separately
- Weight: 0.55 kg (IFR4-02N-SET05) to 1.05 kg (IFR4-06N-SE20)
| Model | Port Size (std) | Element | Max Flow – Return (LPM) | Max Flow – Suction (LPM) | Max Pressure (bar) | Filtration Options (µm) | Weight (kg) |
| IFR4-02N-SET05 | 1/4" NPT | S/ET-05 (built-in bypass) | 15 | 5 | 10 | 10/25 nom; 10/25 abs | 0.55 |
| IFR4-04N-SE10 | 1/2" NPT | S/E-10 | 35 | - | 10 | 10/25 nom; 10/25 abs | 0.8 |
| IFR4-04N-SE20 | 1/2" NPT | S/E-20 | 70 | - | 10 | 10/25 nom; 10/25 abs | 1.0 |
| IFR4-06N-SE10 | 3/4" NPT | S/E-10 | 35 | - | 10 | 10/25 nom; 10/25 abs | 0.85 |
| IFR4-06N-SE20 | 3/4" NPT | S/E-20 | 70 | 20 | 10 | 10/25 nom; 10/25 abs | 1.05 |
