The AirTAC GFR20008LJF1WTK AirTAC Low-Pressure Filter Regulator NPT1/4 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 GFR20008LJF1WTK is a low-pressure filter regulator that removes water and particulate from compressed air and holds downstream pressure steady in one compact body. This size 200 unit is fitted with a 1/4 in NPT port, a 5 um filter element (code W) for finer filtration than the standard 40 um, a differential-pressure drain that bleeds collected condensate automatically as flow passes through, a polycarbonate bowl, an embedded square gauge scaled in MPa, and a built-in reverse/check valve that holds downstream pressure when the supply drops. No mounting bracket is included on this configuration.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port options from 1/8 to 1 in, thread choices of PT (standard), G and NPT, manual, automatic or differential-pressure drains, and 40 um or 5 um elements. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR20008LJF1WTK AirTAC Low-Pressure Filter Regulator NPT1/4 |
|---|---|
| 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 | Fitted — square, MPa 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. |
| 1 | Gauge scale: MPa. 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) |
Feeds the pneumatic grippers and small cylinders on a carton or blister packaging line, filtering water and fine particles while holding a steady, gentle low pressure so delicate product handling stays repeatable.
Conditions the shop-air feed to laboratory test rigs and pneumatic fixtures, where the 5 um element protects sensitive instrumentation and the low-pressure regulator keeps clamping and actuation circuits stable.
Sits at the drop of a spray booth or coating station, removing moisture that would cause finish defects and regulating the low atomising pressure the process calls for, with the check valve holding setting during supply dips.
Start with the port step: this unit is the size 200, 1/4 in NPT version of the GFR family; larger sizes (300/400/600) carry bigger ports and more flow capacity, so match the size to your line demand. The 5 um element here suits air that feeds sensitive valves, cylinders or instruments; choose the standard 40 um element when general protection is enough. Drain choice matters: differential-pressure (this unit) drains with flow, automatic drains hands-free, and manual drain suits intermittent use. Gauge scale can be MPa, psi or bar, and the square gauge is embedded while a round external gauge is optional. Thread is NPT here; PT is the standard and G is also an order option. Flow is published as curves, not a single rating, so 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 flow for the GFR series as curves, not as a single rated number, so we do not quote a figure here. Tell us your line demand and operating pressure and we will confirm the datasheet flow figures for this 1/4 in, size 200 unit on request.
K means a reverse/check valve is fitted, so downstream pressure is held if the upstream supply drops. This unit has no drain letter, which is the differential-pressure drain: condensate collected in the polycarbonate bowl is discharged automatically as air flows through, with no manual draining needed under normal flow.
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.