The AirTAC GFR200-08 AirTAC Filter Regulator NPT1/4 5 um Low-Pressure is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/4" ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR200-08 is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This 200-size unit is ordered with a 1/4 in NPT port, a 5 um filter element (the finer of the two published grades), a differential-pressure drain that bleeds collected condensate automatically when the pressure differential across the element rises, and a built-in reverse/check valve that holds downstream pressure if the upstream supply drops. It is the low-pressure type, supplied without a gauge and without a mounting bracket.
This is a genuine AirTAC part. The GFR family runs from size 200 to 600, with port options from 1/8 in to 1 in, PT as the standard thread and G or NPT as order options, filter grades of 40 um standard or 5 um, a choice of drain, gauge and bracket, and a check-valve option. Flow is published as curves rather than a single rated figure, so we confirm sizing and datasheet figures on request.
| Model | GFR200-08 AirTAC Filter Regulator NPT1/4 5 um Low-Pressure |
|---|---|
| Series | GFR200 filter regulator |
| Port size | PT1/4" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure type |
| Adjusting mechanism | Balanced type |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -5 to +70 °C (unfreeze) |
| Drain type | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Not fitted |
| Reflux valve | Fitted (reverse flow permitted) |
Specifications follow the official AirTAC G-series air-preparation data. The regulating band is set by the drain type: automatic and differential-pressure drains regulate 0.15 - 0.9 MPa, a manual drain regulates 0.05 - 0.9 MPa. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. Air must not freeze in the unit. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GFR200 | G-series filter regulator, 200 body — sets the port range. |
|---|---|
| 08 | Port size PT1/4". This body offers 06 = PT1/8", 08 = PT1/4". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| N | No pressure gauge (N). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
Field order is size, port, drain, type, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR200 · PT1/4" · 5 µm |
|---|---|
| One size up | GFR300 |
| Add lubrication | GFC200-08 (two-unit set) |
On an assembly fixture that clamps workpieces at reduced supply pressure, the GFR200-08 filters the incoming air to 5 um and regulates the low-pressure circuit, while the check valve keeps the clamp from venting if the main supply dips mid-cycle.
Feeding 1/4 in lines to sealing jaws and small cylinders on a packaging line, this filter regulator strips water and fine particles at the drop, and its differential-pressure drain clears condensate without daily manual attention.
On a laboratory or QC test bench supplied at low pressure, the 5 um element protects sensitive gauges and instruments, and the built-in check valve preserves the set test pressure at the rig when the shop air is shut off.
Size the unit by the port and flow step: 200 is the smallest GFR size with a 1/4 in port here, and larger sizes (300/400/600) carry larger ports and more flow. This unit is already specified with the 5 um element - choose it where downstream equipment needs finer filtration than the 40 um standard; the differential-pressure drain suits installations you cannot visit often, while automatic and manual drains are available elsewhere in the family. The low-pressure type is the right pick for circuits running at reduced supply pressure; the exact adjustment range for this variant is not published, so confirm it with us. NPT is fitted here; PT is the catalogue standard and G is also orderable. A gauge, external round or embedded square, and a mounting bracket can be added on other order codes. Because flow is published as curves and not a single rating, ask us to confirm sizing against your application before ordering.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes GFR flow as curves, not as a single rated figure, so we do not quote a number here. Tell us your application and we will confirm the sizing and flow figures from the datasheet on request before you order.
The code GFR20008LJNWTK specifies the K option (a reverse/check valve fitted) and the N option (no gauge supplied). The check valve holds downstream pressure if the upstream supply drops; if you want a pressure readout, other GFR200 order codes include an embedded square gauge or an external round gauge with MPa, psi or bar scales.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity, thread type (PT / G / NPT), gauge scale and destination. We confirm price, availability and lead time — usually within 7-8 hours.