The AirTAC GFR20008LJF2GK AirTAC Filter Regulator G1/4, 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 AirTAC GFR20008LJF2GK is a GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 200-size unit is built with a G1/4 (BSPP) port, the low-pressure regulator type for circuits that run at reduced supply pressure, a 40 um standard filter element, and a differential-pressure drain that bleeds accumulated condensate automatically as the pressure differential across the bowl rises. The embedded square gauge is fitted with a psi scale, and a reverse/check valve is fitted so downstream pressure is held if the upstream supply drops.
This is a genuine AirTAC part. The GFR family spans 200, 300, 400 and 600 sizes with port options from 1/8 to 1 inch, PT as the standard thread and G (BSPP) or NPT as orderable options, a choice of 40 um or 5 um (W) filtration, manual, automatic or differential-pressure drains, and gauge or no-gauge builds. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR20008LJF2GK AirTAC Filter Regulator G1/4, Low-Pressure |
|---|---|
| Series | GFR200 filter regulator |
| Port size | PT1/4" (G (BSPP) 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, 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. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) 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 light-duty assembly press that runs its air cylinder at reduced supply pressure, this low-pressure-type filter regulator cleans the plant air and holds the working pressure, with the check valve holding the cylinder position if the main supply dips.
Feeding the actuator bank on a carton-sealing or wrapping line, the GFR20008LJF2GK strips water and 40 um-scale dirt from the shop air and regulates it to the pressure the machine's valves were set up for, with the psi gauge giving operators a local reading.
On a control panel or test bench fed from a shared air header, this compact 200-size unit filters and regulates the branch supply at its G1/4 connection, and the fitted check valve stops backfeed between adjacent branches.
Start with the size and port: the 200 body with its G1/4 port suits compact lines and branch take-offs; step up to 300, 400 or 600 when the circuit demands larger ports. The low-pressure (L) type in this code is the right choice where the working circuit runs well below full line pressure - confirm the exact regulation range with us before ordering, as it is not published as a single figure. The 40 um element is the standard grade for general plant air; choose the 5 um (W) element only where downstream equipment needs finer filtration. The differential-pressure drain needs no operator attention, while manual (M) and automatic (A) drains are available in the family. The fitted square gauge reads in psi; MPa and bar scales and an external round gauge are alternatives. Thread is G (BSPP) here, with PT standard and NPT orderable; brackets are optional (this code omits one).
Flow is published as curves, not a single rating, so 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 rated flow, Cv or SCFM number. Send us your application details and we will confirm the datasheet and check the sizing for you on request.
K means a reverse/check valve is fitted. If upstream pressure falls or is removed, the valve holds pressure downstream so actuators and circuits on the outlet side do not lose their set pressure. It is an option on GFR units; the same code without K would have no check valve.
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.