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 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 low-pressure filter regulator: it removes water and particulate from compressed air and holds the downstream pressure at a set point, in a single compact body. This 200-size unit is fitted with a 1/4 in NPT port, a 40 um standard filter element and a differential-pressure drain that bleeds collected condensate automatically whenever the pressure drop across the element rises. The polycarbonate bowl lets you see the fluid level at a glance, and the embedded square gauge reads outlet pressure in bar.
This is a genuine AirTAC part. The GFR series is available in sizes 200, 300, 400 and 600 with a choice of PT, G or NPT thread, manual, automatic or differential-pressure drain, 40 um or 5 um (W) filtration, gauge scale and bracket options. Rated flow is published as curves rather than a single figure, so ask us to confirm the datasheet and flow figures for your application before ordering.
| 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 | 0.15 - 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 | Not fitted |
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. |
| (blank) | No reverse-flow valve (the default). |
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 woodworking CNC router, the vacuum hold-down and pneumatic clamp circuits run at reduced pressure. This low-pressure filter regulator cleans the shop air of water and chips-carrying particulate and holds a steady low set point so clamps grip consistently through the shift.
Bench instruments and test rigs fed from a central compressor need clean, stable low-pressure air. The 40 um element and differential-pressure drain keep condensate out of sensitive valves and regulators downstream, while the bar-scale gauge gives operators a visible set point.
Sorting and packaging conveyors driven by small pneumatic cylinders benefit from filtered, regulated air at a gentle pressure. Mounted at the drop feeding the conveyor's valve manifold, this unit protects cylinders and seals from water and dirt and keeps stroke speed repeatable.
Start with the port and size: this unit is 200 size with a 1/4 in NPT port; larger sizes (300/400/600) step up in port and capacity, so match the size to the flow your line needs. Drain choice matters: differential-pressure (fitted here) needs no attention, automatic (code A) purges on a cycle, and manual (code M) is emptied by hand. Filter grade is 40 um standard or 5 um with code W if downstream equipment needs finer air. The embedded square gauge is fitted here with a bar scale; MPa and psi scales and an external round gauge are alternatives. Thread is NPT on this unit; PT is the standard and G (BSPP) is also a catalogue option. Bracket code J means no bracket is supplied - order one if you want panel fixing.
Note that this is the low-pressure (L) type, and its adjustment range is not published in the sheet we work from - ask us to confirm it against your set point. Because rated flow is published only as curves, not a single number, send us your application details and we will confirm sizing before you order.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as curves, not as a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the flow figures from the datasheet so you can size the unit correctly before ordering.
The L in the code marks this as the low-pressure type of the GFR series, intended for circuits set well below standard line pressure. The exact adjustment range for the low-pressure type is not published in the sheet we work from, so please ask us to confirm it against your required set point. The maximum inlet pressure remains 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
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.