The AirTAC GFR20008LJF3TK AirTAC Filter Regulator NPT1/4 Low-Pressure is a genuine G-series filter regulator: water separation, 40 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 GFR20008LJF3TK is an AirTAC GFR200 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the size 200 unit with a 1/4 in NPT port, set up as the low-pressure regulator type for circuits that run below standard regulator settings. It carries the standard 40 um filter element, a differential-pressure drain, a square gauge reading in bar, and a built-in reverse/check valve; no mounting bracket is fitted. The bowl on this size is polycarbonate (PC). Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR series spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options including a 5 um element (code W), automatic or manual drain, alternative gauge scales, G or NPT threads and a mounting bracket. AirTAC publishes flow for this series as curves rather than a single rated figure, so we confirm flow and datasheet figures on request before you order.
| Model | GFR20008LJF3TK AirTAC Filter Regulator NPT1/4 Low-Pressure |
|---|---|
| Series | GFR200 filter regulator |
| Port size | PT1/4" (NPT thread) |
| Filtering grade | 40 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, bar 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. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size up | GFR300 |
| Add lubrication | GFC200-08 (two-unit set) |
On a finishing line where atomizing air must sit well below standard regulator settings, this low-pressure GFR holds the reduced setpoint while the 40 um element keeps water and pipe scale out of the spray gun, and the bar gauge gives the operator a direct setpoint check.
Fixture clamps fed at reduced pressure suit the low-pressure regulator type, and the fitted check valve helps hold the downstream circuit against backflow when upstream air is isolated at the drop.
Instrument air drops that need both clean and reduced-pressure supply take this unit at the bench: 40 um filtration ahead of the regulator, a square bar gauge for setting, and a 1/4 in NPT port that matches standard lab tubing trains.
Start with the size and port: this is the 200 size with a 1/4 in NPT port, the smallest step in the range - step up to 300/400/600 if your line needs more flow capacity. This unit is the low-pressure type (code L), intended for circuits held below standard regulator settings; the exact adjustment range for the low-pressure type is not published, so confirm it with us against your setpoint. The drain is the differential-pressure type (the default); automatic (A) and manual (M) drains are orderable options. The 40 um element is standard - specify W for the 5 um grade if downstream equipment needs finer filtration.
Other decodable choices on this code: the square gauge reads in bar (scales in MPa or psi are available, and an external round gauge is optional); the K code means a reverse/check valve is fitted; J means no mounting bracket, so order a bracketed variant if you panel- or wall-mount. Thread: PT is the AirTAC standard and G (BSPP) or NPT are order options - this code is the NPT version. Flow for the series 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 rather than a single rated figure, so we do not quote a flow number for this unit. Send us your line pressure and the air demand of the equipment it will feed, and we will confirm sizing against the datasheet curves on request.
The L in the code marks the low-pressure regulator type, intended for circuits held below standard regulator settings; the exact adjustment range for this type is not published, so confirm it with us against your setpoint. The fitted square gauge reads in bar, and an external round gauge with MPa, psi or bar scales is available as an option.
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.