The AirTAC GFR200-08 AirTAC Filter Regulator, NPT 1/4 in, 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 GFR200-08 is a size-200 filter regulator that removes water and particulate from compressed air and holds a set downstream pressure in one compact body. This configuration carries a 5 um filter element (the finer of the two catalogue grades), a differential-pressure drain that bleeds collected condensate automatically as the pressure drop across the bowl rises, and the low-pressure regulator type for circuits that run at reduced set pressures. The downstream port is 1/4 in with NPT thread, and a mounting bracket is included for panel or frame fixing. No gauge is fitted on this variant, so a separate gauge must be sourced if visual pressure indication is needed.
This is a genuine AirTAC part. The GFR series spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drain, 40 um standard or 5 um (W) filtration, standard or low-pressure regulation, and PT, G or NPT threads. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application.
| Model | GFR200-08 AirTAC Filter Regulator, NPT 1/4 in, 5 um |
|---|---|
| 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 | Not fitted |
| 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. |
| (blank) | Mounting bracket included. |
| N | No pressure gauge (N). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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. |
| (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" · 5 µm |
|---|---|
| One size up | GFR300 |
| Add lubrication | GFC200-08 (two-unit set) |
A fixture that clamps delicate machined parts needs air regulated well below line pressure so the workpiece is held without marking. The GFR200-08 filters the shop air to 5 um ahead of the clamp cylinder and holds the reduced set pressure, with the differential-pressure drain keeping condensate out of the circuit.
Laboratory and pilot-line dosing equipment is sensitive to both particles and pressure drift. Fed from a 1/4 in NPT drop, this unit strips water and fine particulate at 5 um and regulates the supply at a low set point, protecting the dosing valves and nozzles on the station.
A blow-off header that clears dust and film scraps from cartons before labelling runs best at a gentle, stable pressure. This filter regulator conditions the 1/4 in feed to the header, the fine 5 um element keeping the small jet orifices from clogging, while the bracket fixes the unit beside the conveyor frame.
Size 200 with a 1/4 in port is the entry step of the GFR range; step up to 300, 400 or 600 when the circuit demands more flow or a larger port. Choose the 5 um element on this model when downstream equipment tolerates less particulate than the 40 um standard grade; the differential-pressure drain suits installations that are not checked daily, while automatic and manual drains are available elsewhere in the range. The low-pressure regulator type is intended for circuits set well below standard regulator range - the exact range is not published, so confirm your set point with us. Thread options are PT (standard), G and NPT (this model is NPT); a bracket is included, and gauge variants (round or square, MPa/psi/bar scales) exist for models ordered with a gauge.
Because flow is published as curves rather than a single rating, we do not quote a rated flow number. Send us your application's flow and pressure requirements 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. 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 number, so we do not quote a rated flow, Cv or SCFM figure. Tell us your required flow and set pressure and we will confirm the datasheet curve for this size-200, 1/4 in unit and advise whether 200 is the right step or whether a larger size fits better.
The N in the code means no gauge is fitted, so you will need a separate gauge to read the downstream pressure; GFR variants ordered with a gauge code come with an embedded square gauge or an optional external round gauge in MPa, psi or bar scales. The L in the code selects the low-pressure regulator type, intended for circuits set below the standard range - the exact range is not published, so confirm your set point with us before ordering.
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.