HFR high-pressure compressed air dust filters up to 50 bar
The HFR dust filter traps solid particles larger than 1 µm and liquid water. The air after it meets solid particle class 3 according to ISO 8573-1.
The HFR filter comes in 9 sizes with G 1/2" to G 3" threads and flows of 1,183 to 46,000 l/min at 7 bar; working pressure up to 50 bar. It is one of the stages of the HF high-pressure filters — the housing is the same for all stages, only the element differs.
HFR filters by size
The size determines the thread and the flow. Each size has its own spare element.
| HFR filters and spare elements by size | ||||
|---|---|---|---|---|
| Filter | Thread | l/min at 7 bar | Nm³/h at 7 bar | Spare element |
| HFR-007 | G 1/2" | 1,183 | 71 | HFR-007V |
| HFR-010 | G 3/4" | 1,867 | 112 | HFR-010V |
| HFR-018 | G 1" | 3,400 | 204 | HFR-018V |
| HFR-047 | G 1 1/2" | 4,700 | 282 | HFR-047V |
| HFR-070 | G 1 1/2" | 6,667 | 400 | HFR-070V |
| HFR-094 | G 2" | 8,233 | 494 | HFR-094V |
| HFR-150 | G 2" | 13,317 | 799 | HFR-150V |
| HFR-200 | G 3" | 36,000 | 2,160 | HFR-200V |
| HFR-240 | G 3" | 46,000 | 2,760 | HFR-240V |
The flows apply to a pressure of 7 bar and a temperature of +20 °C. You will find the dimensions and weight on the product page of each filter.
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When to use it
A dust filter suits use as a pre-filter before a fine pre-filter or a microfilter. On its own, it is installed after an adsorption dryer, where it traps dust from the adsorbent.
Where to place it
After the HFP basic filter, before the HFM fine pre-filter or HFS microfilter, or after an adsorption dryer.
Flow by pressure
The catalogue flows apply to a pressure of 7 bar and a temperature of +20 °C. At a higher pressure the filter passes more air: at 50 bar, 6.38 times as much as at 7 bar.
| HFR filter flow in l/min by pressure | ||||||
|---|---|---|---|---|---|---|
| Size (thread) | 5 bar | 7 bar | 10 bar | 16 bar | 30 bar | 50 bar |
| 007 (G 1/2") | 887 | 1,183 | 1,633 | 2,520 | 4,590 | 7,548 |
| 010 (G 3/4") | 1,400 | 1,867 | 2,576 | 3,977 | 7,244 | 11,911 |
| 018 (G 1") | 2,550 | 3,400 | 4,692 | 7,242 | 13,192 | 21,692 |
| 047 (G 1 1/2") | 3,525 | 4,700 | 6,486 | 10,011 | 18,236 | 29,986 |
| 070 (G 1 1/2") | 5,000 | 6,667 | 9,200 | 14,201 | 25,868 | 42,535 |
| 094 (G 2") | 6,175 | 8,233 | 11,362 | 17,536 | 31,944 | 52,527 |
| 150 (G 2") | 9,988 | 13,317 | 18,377 | 28,365 | 51,670 | 84,962 |
| 200 (G 3") | 27,000 | 36,000 | 49,680 | 76,680 | 139,680 | 229,680 |
| 240 (G 3") | 34,500 | 46,000 | 63,480 | 97,980 | 178,480 | 293,480 |
Element, drain and maintenance
The housing holds a single element, a different one for each size — for example HFR-007V for the HFR-007. Working temperature +1.5 to +65 °C, pressure up to 50 bar.
The filter is supplied without a condensate drain. For pressures up to 50 bar, the AOK 50B and AOK 50SS float drains are suitable; they work reliably from 10 bar.
Replace the element at least once a year or at a pressure drop of 350 mbar. The pressure drop is shown by the MDHI 50 differential pressure gauge.
Accessories for HFR filters
MDHI 50 differential pressure gauge
Shows the pressure drop of the element; it is mounted on the filter head.
Ventilek’s tip
A dust filter after an adsorption dryer. Dust from the adsorbent can escape into the air after an adsorption dryer, and the R element traps it before it reaches the air line.
- What rating does the HFR dust filter have?
- 1 µm, solid particle class 3 according to ISO 8573-1.
- Does it also trap oil?
- No, the dust filter does not determine residual oil. For oil, there are the HFM fine pre-filters and HFS microfilters.
- When should the element be replaced?
- At least once a year or at a pressure drop of 350 mbar.
Product sorting
List of products
Spare element HFR-018V for the HFR-018 dust filter with a G 1" thread. Recommended replacement at least once a year or at a pressure drop of 350 mbar.
With a G 1/2" thread and a flow of 1,183 l/min at 7 bar, the HFR-007 dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up to 50 bar.
Spare element HFR-007V for the HFR-007 dust filter with a G 1/2" thread. Recommended replacement at least once a year or at a pressure drop of 350 mbar.
With a G 3/4" thread and a flow of 1,867 l/min at 7 bar, the HFR-010 dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up to 50 bar.
With a G 1" thread and a flow of 3,400 l/min at 7 bar, the HFR-018 dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up to 50 bar.
With a G 1 1/2" thread and a flow of 4,700 l/min at 7 bar, the HFR-047 dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up to 50 bar.
With a G 1 1/2" thread and a flow of 6,667 l/min at 7 bar, the HFR-070 dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up to 50 bar.
With a G 2" thread and a flow of 8,233 l/min at 7 bar, the HFR-094 dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up to 50 bar.
With a G 2" thread and a flow of 13,317 l/min at 7 bar, the HFR-150 dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up to 50 bar.
With a G 3" thread and a flow of 36,000 l/min at 7 bar, the HFR-200 dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up to 50 bar.
With a G 3" thread and a flow of 46,000 l/min at 7 bar, the HFR-240 dust filter traps solid particles larger than 1 µm and liquid water. Working pressure up to 50 bar.
Spare element HFR-010V for the HFR-010 dust filter with a G 3/4" thread. Recommended replacement at least once a year or at a pressure drop of 350 mbar.
Spare element HFR-047V for the HFR-047 dust filter with a G 1 1/2" thread. Recommended replacement at least once a year or at a pressure drop of 350 mbar.
Spare element HFR-070V for the HFR-070 dust filter with a G 1 1/2" thread. Recommended replacement at least once a year or at a pressure drop of 350 mbar.
Spare element HFR-094V for the HFR-094 dust filter with a G 2" thread. Recommended replacement at least once a year or at a pressure drop of 350 mbar.
Spare element HFR-150V for the HFR-150 dust filter with a G 2" thread. Recommended replacement at least once a year or at a pressure drop of 350 mbar.
Spare element HFR-200V for the HFR-200 dust filter with a G 3" thread. Recommended replacement at least once a year or at a pressure drop of 350 mbar.
Spare element HFR-240V for the HFR-240 dust filter with a G 3" thread. Recommended replacement at least once a year or at a pressure drop of 350 mbar.