CHP4S high-pressure compressed air microfilters up to 420 bar
The CHP4S microfilter is the finest mechanical stage of the range. The borosilicate microfibre element traps particles larger than 0.01 µm and removes oil down to a residual content below 0.01 mg/m³ — class 1-x-1 according to ISO 8573-1.
The CHP4S filter comes in 8 sizes with G 1/4" to G 2" threads and flows of 667 to 11,917 l/min at 7 bar; working pressure up to 420 bar. It is one of the stages of the CHP4 high-pressure filters — the housing is the same for all stages, only the element differs.
CHP4S filters by size
The size determines the thread and the flow. Each size has its own spare element.
| CHP4S filters and spare elements by size | ||||||
|---|---|---|---|---|---|---|
| Filter | Thread | l/min at 7 bar | Nm³/h at 7 bar | Height A × width C | Weight | Spare element |
| CHP4S-003 | G 1/4" | 667 | 40 | 182 × 104 mm | 7.6 kg | CHPS-003V |
| CHP4S-005 | G 3/8" | 1,167 | 70 | 182 × 104 mm | 7.6 kg | CHPS-005V |
| CHP4S-007 | G 1/2" | 2,167 | 130 | 230 × 129 mm | 15.3 kg | CHPS-007V |
| CHP4S-010 | G 3/4" | 3,250 | 195 | 254 × 129 mm | 16.1 kg | CHPS-010V |
| CHP4S-018 | G 1" | 4,583 | 275 | 276 × 158 mm | 26.5 kg | CHPS-018V |
| CHP4S-030 | G 1 1/4" | 6,333 | 380 | 328 × 158 mm | 28.6 kg | CHPS-030V |
| CHP4S-047 | G 1 1/2" | 8,250 | 495 | 385 × 216 mm | 65.9 kg | CHPS-047V |
| CHP4S-094 | G 2" | 11,917 | 715 | 460 × 216 mm | 71.4 kg | CHPS-094V |
The flows apply to a pressure of 7 bar and a temperature of +20 °C. Dimensions and weights according to the manufacturer; you will find further data on the product page of each filter.
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When to use it
The microfilter S suits all applications where the air must be very clean of particles and oil. It is also the mandatory stage before activated carbon A — only with it does its solid particle class 1 apply.
The fine pre-filter M, which traps particles and oil down to 0.1 µm, goes before the microfilter S — the microfilter element then lasts longer.
Where to place it
After the CHP4M fine pre-filter, before the CHP4A activated carbon filter.
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: from 100 bar, 12 times as much as at 7 bar.
| CHP4S filter flow in l/min by pressure | |||||||
|---|---|---|---|---|---|---|---|
| Size (thread) | 7 bar | 25 bar | 40 bar | 64 bar | 100 bar | 250 bar | 420 bar |
| 003 (G 1/4") | 667 | 2,001 | 3,335 | 5,336 | 8,004 | 8,004 | 8,004 |
| 005 (G 3/8") | 1,167 | 3,501 | 5,835 | 9,336 | 14,004 | 14,004 | 14,004 |
| 007 (G 1/2") | 2,167 | 6,501 | 10,835 | 17,336 | 26,004 | 26,004 | 26,004 |
| 010 (G 3/4") | 3,250 | 9,750 | 16,250 | 26,000 | 39,000 | 39,000 | 39,000 |
| 018 (G 1") | 4,583 | 13,749 | 22,915 | 36,664 | 54,996 | 54,996 | 54,996 |
| 030 (G 1 1/4") | 6,333 | 18,999 | 31,665 | 50,664 | 75,996 | 75,996 | 75,996 |
| 047 (G 1 1/2") | 8,250 | 24,750 | 41,250 | 66,000 | 99,000 | 99,000 | 99,000 |
| 094 (G 2") | 11,917 | 35,751 | 59,585 | 95,336 | 143,004 | 143,004 | 143,004 |
Element, drain and maintenance
The housing holds a single element, a different one for each size — for example CHPS-007V for the CHP4S-007. The same element also fits CHPS filters for a different pressure. Working temperature +1.5 to +65 °C.
The filter is supplied without a condensate drain. The TD420M timed drain up to 420 bar is suitable; it is connected to the G 1/4" opening in the bottom.
Replace the element at a pressure drop of 350 mbar, at least once every 12 months.
Accessories for CHP4S filters
The same stage for a different pressure
Stage S also comes in the CHP1S filters up to 100 bar and CHP2S filters up to 250 bar; in the stainless steel version, there are the IHP4S filters.
Ventilek’s tip
A microfilter needs a fine pre-filter. Install the fine pre-filter M before the microfilter S. Activated carbon can then follow the microfilter and only deals with vapours and odours.
- What purity does the CHP4S microfilter provide?
- Particles down to 0.01 µm and residual oil below 0.01 mg/m³, class 1-x-1 according to ISO 8573-1.
- What goes before the microfilter?
- The fine pre-filter M, so that the microfilter element does not clog so quickly.
- Does it have to go before activated carbon?
- Yes. Solid particle class 1 for activated carbon A only applies when an S microfilter is installed before it.
Product sorting
List of products
With a G 1/4" thread and a flow of 667 l/min at 7 bar, the CHP4S-003 microfilter traps particles larger than 0.01 µm, water and oil; residual oil is below 0.01 mg/m³. Working...
With a G 3/8" thread and a flow of 1,167 l/min at 7 bar, the CHP4S-005 microfilter traps particles larger than 0.01 µm, water and oil; residual oil is below 0.01 mg/m³. Working...
With a G 1/2" thread and a flow of 2,167 l/min at 7 bar, the CHP4S-007 microfilter traps particles larger than 0.01 µm, water and oil; residual oil is below 0.01 mg/m³. Working...
With a G 3/4" thread and a flow of 3,250 l/min at 7 bar, the CHP4S-010 microfilter traps particles larger than 0.01 µm, water and oil; residual oil is below 0.01 mg/m³. Working...
With a G 1" thread and a flow of 4,583 l/min at 7 bar, the CHP4S-018 microfilter traps particles larger than 0.01 µm, water and oil; residual oil is below 0.01 mg/m³. Working...
With a G 1 1/4" thread and a flow of 6,333 l/min at 7 bar, the CHP4S-030 microfilter traps particles larger than 0.01 µm, water and oil; residual oil is below 0.01 mg/m³....
With a G 1 1/2" thread and a flow of 8,250 l/min at 7 bar, the CHP4S-047 microfilter traps particles larger than 0.01 µm, water and oil; residual oil is below 0.01 mg/m³....
With a G 2" thread and a flow of 11,917 l/min at 7 bar, the CHP4S-094 microfilter traps particles larger than 0.01 µm, water and oil; residual oil is below 0.01 mg/m³. Working...
Spare element CHPS-003V for the CHP1S-003, CHP2S-003 and CHP4S-003 microfilters — borosilicate microfibres. Replace the element at a pressure drop of 350 mbar, at least once...
Spare element CHPS-005V for the CHP1S-005, CHP2S-005 and CHP4S-005 microfilters — borosilicate microfibres. Replace the element at a pressure drop of 350 mbar, at least once...
Spare element CHPS-007V for the CHP1S-007, CHP2S-007 and CHP4S-007 microfilters — borosilicate microfibres. Replace the element at a pressure drop of 350 mbar, at least once...
Spare element CHPS-010V for the CHP1S-010, CHP2S-010 and CHP4S-010 microfilters — borosilicate microfibres. Replace the element at a pressure drop of 350 mbar, at least once...
Spare element CHPS-018V for the CHP1S-018, CHP2S-018 and CHP4S-018 microfilters — borosilicate microfibres. Replace the element at a pressure drop of 350 mbar, at least once...
Spare element CHPS-030V for the CHP1S-030, CHP2S-030 and CHP4S-030 microfilters — borosilicate microfibres. Replace the element at a pressure drop of 350 mbar, at least once...
Spare element CHPS-047V for the CHP1S-047, CHP2S-047 and CHP4S-047 microfilters — borosilicate microfibres. Replace the element at a pressure drop of 350 mbar, at least once...
Spare element CHPS-094V for the CHP1S-094, CHP2S-094 and CHP4S-094 microfilters — borosilicate microfibres. Replace the element at a pressure drop of 350 mbar, at least once...