The AirTAC GFR20008MLF3WTK AirTAC Filter Regulator NPT1/4 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR20008MLF3WTK is a size 200 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration carries a 1/4 in NPT port, a 5 um filter element (code W, finer than the 40 um standard), a manual drain on the PC bowl, and the low-pressure type regulator (code L) for circuits that run at reduced setpoints. The fitted square gauge reads in bar, and a reverse/check valve (code K) is built in; a mounting bracket is included.
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 and PT, G or NPT threads. Drain types, filter grades, gauge styles and scales, and low-pressure or standard regulator types are all orderable options. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR20008MLF3WTK AirTAC Filter Regulator NPT1/4 Low-Pressure |
|---|---|
| Series | GFR200 filter regulator |
| Port size | PT1/4" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (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. |
| 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 clamp cylinders on a robotic weld cell: the 5 um element keeps spool and seal wear down, the low-pressure type regulator holds a reduced clamp setpoint, and the check valve holds the circuit if upstream supply dips.
Conditions and regulates air to the diverters and pushers on a cartoning line, with the bar-scale square gauge giving operators a setpoint readout at the machine and the manual drain supporting scheduled maintenance rounds.
Mounted on the bracket at a workshop drop, it filters and regulates air for hand-held pneumatic tools and test rigs, with the low-pressure type regulator suiting delicate setup work and the check valve preventing backflow into the drop.
Size 200 with a 1/4 in NPT port suits compact supply drops; step up to size 300, 400 or 600 when the circuit needs a larger port and more flow. The 5 um element (W) is the right choice where finer particulate removal matters; the 40 um standard element remains available if coarse filtration is sufficient. Manual drain means an operator opens the bowl drain during checks - choose automatic or differential-pressure drain codes if the unit will be left unattended. The low-pressure type regulator (L) is intended for reduced setpoint circuits; its exact adjustment range is not published in our sheet, so confirm it with us. The square gauge is fitted with a bar scale; MPa or psi scales and an external round gauge are orderable. NPT is specified here; PT and G (BSPP) threads are catalogue alternatives, and a no-bracket (J) variant exists for other GFR builds. Because flow is published as curves rather than 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 no rated flow number is stated here. Tell us your line pressure and required flow and we will confirm the sizing from the datasheet curves on request before you order.
The M code in GFR20008MLF3WTK specifies a manual drain: condensate collected in the PC bowl is released by hand during maintenance checks. Automatic (A) and differential-pressure (blank) drain versions of the same GFR200 size are available if the unit will run unattended.
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.