The AirTAC GFR200-08 AirTAC Filter Regulator 1/4" PT, 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 GFR200-08 is a filter regulator: it removes water and particulate from compressed air and holds a regulated downstream pressure, both in one compact body. This 200-size unit is ordered with a PT1/4 (1/4 in) port, the low-pressure regulator type, a 40 um standard filter element and a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough. The polycarbonate bowl lets you see the liquid level, an embedded square gauge reading in psi is fitted, and a reverse (check) valve is built in. No mounting bracket is included with this configuration.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options including manual or automatic drains, a 5 um element (code W), gauge scales in MPa, psi or bar, and G (BSPP) or NPT threads in place of the PT standard. Rated flow for this family is published as curves rather than a single figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR200-08 AirTAC Filter Regulator 1/4" PT, Low-Pressure |
|---|---|
| Series | GFR200 filter regulator |
| Port size | PT1/4" (PT 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. |
| (blank) | PT 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) |
Feeds the clamp and hold-down cylinders on a machining or assembly fixture, filtering line water and chips-carried condensate while the low-pressure regulator holds the gentle, repeatable clamp pressure the fixture was designed around.
Sits in the air line feeding the cylinders and air bells of a carton or blister packaging machine, keeping water and 40 um-and-coarser dirt out of the valves while regulating the supply pressure that the machine's low-pressure actuators expect.
Conditions the shop-air feed to lab equipment and pilot-scale process skids that call for a soft, stable low-pressure air supply, with the check valve holding the setting against momentary supply dips and the see-through bowl making condensate visible.
Start with the port and size step: this 200-size unit carries a 1/4 in PT port, and stepping up to 300, 400 or 600 buys larger ports and more flow capacity. Because flow is published as curves and not a single rating, ask us to confirm sizing against your air demand before ordering. Choose the drain to match maintenance habits: the differential-pressure drain fitted here is hands-off, an automatic drain (code A) dumps condensate continuously, and a manual drain (code M) is emptied by hand. The 40 um element fitted here is the standard grade; specify W for the 5 um fine grade if downstream equipment needs cleaner air. This is the low-pressure (L) regulator type; its exact set-pressure range is not published in the material we hold, so confirm it with us if your set point is critical. The embedded square gauge reads in psi; MPa or bar scales and an external round gauge are alternatives. Threads can be ordered in G (BSPP) or NPT instead of the PT standard, and a mounting bracket can be added where this no-bracket configuration needs one.
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 G-series flow as performance curves rather than a single rated-flow number, so we do not quote a figure that could mislead your sizing. Tell us your operating conditions and we will confirm the datasheet flow curve and sizing for the GFR200-08 on request before you order.
The L code selects the low-pressure regulator variant, intended for lower set pressures than the standard type. The exact set-pressure range of the low-pressure type is not published in the material we hold, so if your set point is critical, confirm it with us on request. Everything else about this unit - the 1/4 in PT port, 40 um element, differential-pressure drain, square psi gauge and built-in check valve - is decoded directly from the rest of the code.
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.