The AirTAC GFR200-08 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 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 GFR200-08 is an AirTAC GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in one compact size-200 body. This configuration is a 1/4 in (NPT1/4) unit with a manual drain bowl in PC (polycarbonate), a standard 40 um filter element, and the low-pressure regulator type. It is fitted with an external round gauge scaled in psi, a reverse/check valve, and it ships without a mounting bracket (code J). 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 family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and with choices of drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um optional), gauge style and scale, thread form (PT standard, G and NPT to order), bracket and reverse valve. Flow figures are published as curves rather than a single rating, so we confirm the datasheet and sizing on request before you order.
| Model | GFR200-08 AirTAC Filter Regulator NPT1/4 Low-Pressure |
|---|---|
| Series | GFR200 filter regulator |
| Port size | PT1/4" (NPT thread) |
| Filtering grade | 40 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 — round, 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". |
| 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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. |
| 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) |
Feeding clamping cylinders on a fixture or jig that must be held at a reduced, stable pressure rather than full line pressure: the GFR200-08 filters the supply air and regulates it downstream in one body, with the psi gauge giving the operator a direct reading at the setpoint.
Supplying suction or gripper actuators on small assembly and handling stations, where delicate parts call for gentler, lower regulated pressure and clean, dried air. The manual drain suits a cell that is attended and bled down between runs.
On a lab or QC bench rig running short-duration air tests at reduced pressure, the combined filter-regulator keeps the supply clean and regulated, the round psi gauge supports repeatable settings, and the check valve holds the set circuit if the upstream supply dips.
Start with the port step: this unit is size 200 with a 1/4 in NPT port, the smallest GFR frame, so match it to lines whose piping and expected air demand sit at the low end of the family range; the 300/400/600 frames step up in port and body size. Because flow is published as curves and not as a single rated figure, ask us to confirm sizing against your application before ordering. This code fixes several real choices: manual drain (you bleed the bowl by hand, which suits intermittent or attended duty), the standard 40 um element (choose 5 um, code W, only where downstream equipment needs finer filtration), the low-pressure regulator type (the exact adjustment range for this low-pressure variant is not published in our sheet, so confirm it with us), a round external gauge in psi, a reverse/check valve, and no bracket. Thread is NPT here; PT is the catalogue standard and G (BSPP) is also an order option.
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 performance as flow curves rather than a single rated figure, so we do not quote one number here. Send us your application details - line pressure, port size and the equipment being fed - and we will confirm the datasheet curve and check the sizing with you before you order.
The L in the code marks the low-pressure regulator variant, intended for circuits regulated well below standard line pressure. The exact adjustment range for this low-pressure variant is not published in our sheet, so confirm the range with us against your setpoint. The fitted round gauge is scaled in psi so you can read and repeat the setting directly.
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.