The AirTAC GFR200-08 AirTAC Low-Pressure Filter Regulator 1/4 NPT 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 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 downstream pressure at a set point in one compact body. This 200-size unit is built with a 1/4 in NPT port, the 5 um element (code W) in place of the standard 40 um, the default differential-pressure drain, the low-pressure regulator type, an external round gauge with bar scale, a built-in reverse/check valve (code K), and the mounting bracket included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The bowl on this size is polycarbonate (PC); only the 600 size uses an aluminium alloy bowl.
This is a genuine AirTAC part. The GFR series spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options for drain type, filter grade, gauge style and scale, thread (PT standard, G and NPT to order), check valve and bracket. Flow for the series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR200-08 AirTAC Low-Pressure Filter Regulator 1/4 NPT |
|---|---|
| Series | GFR200 filter regulator |
| Port size | PT1/4" (NPT thread) |
| Filtering grade | 5 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 — round, 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". |
| (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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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) |
Filtered, low-pressure regulated air holds pneumatic clamps and swing cylinders on a CNC fixture, with the 5 um element protecting the clamp seals and the check valve guarding against reverse flow at the fixture.
Supplies filtered, regulated low-pressure air to the cylinders and air grippers on a carton-forming or wrapping machine, with the bar-scale gauge giving operators a local set-point readout at the machine.
Feeds spray guns and coating applicators in a paint booth, where the 5 um element keeps water and particulate out of the finish and the low-pressure regulator holds a gentle, repeatable atomising pressure.
Size the unit by port and expected demand: 200 is the smallest GFR frame, here with a 1/4 in NPT port; step up to 300, 400 or 600 where the air demand is higher. This code fixes the 5 um element - choose it where downstream valves, instruments or spray equipment need finer filtration than the standard 40 um. The differential-pressure drain (the default) bleeds collected water off as air flows through, with no manual draining in normal operation. The low-pressure regulator type suits set points below the standard range; the exact range for this type is not published, so we confirm it on request. The gauge on this unit is the external round type with bar scale (MPa and psi scales are also available). Thread is NPT here; PT is the catalogue standard and G (BSPP) is an order option, and the bracket is included. Flow is published as curves, not a single rating, so send us your demand 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 GFR flow as curves rather than a single rated figure, so we do not quote a number here. Send us your line pressure and air demand and we will confirm the flow from the datasheet for this exact 1/4 in NPT, 5 um, low-pressure configuration before you order.
The standard GFR element is 40 um, which suits general shop-air protection. The W option filters to 5 um, the right choice ahead of precision valves, instruments or spray equipment. This unit is built with the 5 um element; the same frame can be ordered with 40 um, and drain type, gauge scale, thread and check valve are also orderable options.
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.