The AirTAC GFR20008C2WGK AirTAC Filter Regulator G1/4, 5 um 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 GFR20008C2WGK is a filter regulator: it removes water and particulate from compressed air and sets downstream pressure in a single compact body. This size 200 unit is threaded G1/4 (G/BSPP), carries the 5 um element (code W) for finer filtration than the standard 40 um, and drains condensate by differential pressure, so the bowl purges itself as flow passes through. A round external gauge on the psi scale is fitted for direct setting, and the K option adds a reverse/check valve that holds downstream pressure when the supply is removed.
This is a genuine AirTAC part in the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of drain types, 40 um or 5 um elements, gauge scales in MPa, psi or bar, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR20008C2WGK AirTAC Filter Regulator G1/4, 5 um |
|---|---|
| Series | GFR200 filter regulator |
| Port size | PT1/4" (G (BSPP) thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard 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, 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. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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)). |
| (blank) | Standard 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. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) 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 spray guns and atomising valves on a finishing line, where the 5 um element keeps oil-free, dry air reaching the nozzle and the regulator holds a steady setting for consistent finish quality.
Sits ahead of clamps and small pneumatic cylinders on a machine tool, setting the working pressure with the psi gauge while the check valve holds the circuit if the main supply drops.
Conditions the air feeding bench-top testers and analytical instruments, where the 5 um grade protects sensitive components and the round gauge gives a direct psi readout for repeatable test setups.
Start with the port and body size: this unit is size 200 with a G1/4 thread, the smallest step in the GFR range, so step up to GFR300/400/600 if your line needs larger ports and more flow. Filtration is set by the element: 40 um is the standard grade for general shop air, while the 5 um W grade fitted here suits instruments, valves and coating work that need finer air. Drain choice matters: differential-pressure (fitted here) purges with flow, automatic drains without it, and manual needs a periodic twist of the bowl. The round psi gauge is fitted; square embedded gauges and MPa or bar scales are the alternatives. Threads come as PT (standard), G or NPT to order, and a mounting bracket is included. Because flow is published as curves rather than a single rating, send us your application 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. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as curves rather than a single rated figure, so we do not quote a number. Tell us your application and required flow and we will confirm the datasheet curve figures for this 1/4 inch size before you order.
The W in the code selects the 5 um filter element instead of the 40 um standard, for finer water and particulate removal, and the K adds a reverse/check valve that holds downstream pressure when the inlet supply is removed. Both are catalogue options you can order on or off.
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.