The AirTAC GFR200-08 AirTAC Filter Regulator 1/4 in 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 compact filter regulator that removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the 200 size with a 1/4 in PT port, fitted with the fine 5 um filter element (code W) for applications that need cleaner air than the standard 40 um grade, the low-pressure regulator type for circuits that operate below standard line pressures, and a differential-pressure drain that bleeds accumulated condensate automatically as the pressure differential across the element builds. It comes with the embedded square pressure gauge scaled in psi and a built-in reverse/check valve that holds downstream pressure when the upstream supply is lost. No mounting bracket is included on this variant.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um filtration, gauge scales in MPa, psi or bar, and PT, G or NPT threads. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). Published flow data is given as curves rather than a single rating, so ask us to confirm the figures for your application before ordering.
| Model | GFR200-08 AirTAC Filter Regulator 1/4 in Low-Pressure |
|---|---|
| Series | GFR200 filter regulator |
| Port size | PT1/4" (PT 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 | Fitted — square, psi scale |
| 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. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT 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) |
Cleaning and regulating the air feeding a machining centre's tool-changer and clamping circuits, where the 5 um element protects fine spool valves and the check valve holds clamp pressure if the shop supply drops.
Conditioning air for lab bench apparatus and test rigs that run at reduced line pressure, using the low-pressure regulator type and the psi-scaled gauge for straightforward setpoint adjustment.
Supplying filtered, regulated air to packaging machine control valves and actuators, with the 5 um grade keeping contaminants out of pilot valves and the differential-pressure drain handling condensate without operator attention.
Start with the port size: this unit is 1/4 in PT, and the 200 size sits at the compact end of the GFR range - step up to 300, 400 or 600 if your line needs larger ports and more flow. The 5 um element (code W) suits air tools, instrumentation and valves that tolerate less contamination than the 40 um standard; the trade-off is a faster-loading element, so consider the automatic drain variant if condensate loads are heavy. The low-pressure regulator type is intended for circuits running below standard line pressures; confirm the working band suits your setpoint. The square gauge is fitted here on a psi scale - MPa or bar scales and an external round gauge are alternatives on other variants. PT is the standard thread; G (BSPP) and NPT are catalogue options to order. This variant has no mounting bracket, so plan the mounting accordingly.
Flow for this series is published as curves, not a single rated figure, so we cannot quote a number here - send us your application details and we will confirm sizing against the datasheet before you order.
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 flow for the GFR series as curves rather than a single rated figure, so we do not quote a number here. Send us your application details - line pressure, setpoint and the equipment you are feeding - and we will confirm the relevant flow figures from the datasheet before you order.
The W code in GFR20008LJF2WK selects the 5 um element instead of the 40 um standard. The finer grade suits air tools, instrumentation and pilot valves that need cleaner air. If your application is less sensitive, the standard 40 um variant of the same size is available, and the differential-pressure drain on this unit handles condensate automatically in either case.
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.