The AirTAC GFR20008MF3WTK AirTAC Filter Regulator NPT1/4 5um 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR20008MF3WTK is a size-200 filter regulator: it removes water and particulate from compressed air and sets downstream pressure in a single compact body. This configuration carries a 1/4 in NPT port, a fine 5 um filter element (the standard element is 40 um; W selects the finer grade), a manual drain on the bowl, an embedded square pressure gauge scaled in bar, and a built-in reverse/check valve that holds downstream pressure if the supply is interrupted. The polycarbonate bowl is protected by an included mounting bracket, and the regulator is the standard type with an adjustment range of 0.05-0.9 MPa (7-130 psi) with manual drain. Maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part in the GFR family, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch and a choice of PT, G (BSPP) or NPT thread, drain type, filter grade, gauge scale and check-valve option. Flow figures for this series are published as curves rather than a single rating, so we confirm the datasheet and sizing figures for your application on request.
| Model | GFR20008MF3WTK AirTAC Filter Regulator NPT1/4 5um |
|---|---|
| Series | GFR200 filter regulator |
| Port size | PT1/4" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, 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. Standard type, regulating 0.05 - 0.9 MPa (7 - 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (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. |
| 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) |
Feeds clean, pressure-set air to the tool-change clamps and pneumatic actuators on a CNC machining centre, with the 5 um element protecting fine control valves from water and swarf-carried particulate.
Mounted ahead of the valve manifold on a cartoning or case-packing line, giving the machine a single point of filtration and regulation; the check valve holds set pressure during brief supply dips so the cycle is not lost.
Conditions the instrument-air feed to a lab test rig or pilot plant skid, where the 5 um grade and a stable regulated pressure keep transducers and pneumatic control components working predictably.
Start with the port step: size 200 with a 1/4 in NPT port suits lighter-duty circuits, while sizes 300, 400 and 600 carry larger ports for higher air demand - match the size to the flow your line needs. Choose the drain to suit access: this unit has a manual drain, which needs someone to bleed the bowl periodically; automatic and differential-pressure drains are available on other GFR codes if the installation is unattended. The 5 um element here is the finer option for sensitive downstream equipment; the 40 um standard grade suits general-purpose protection. The square gauge is scaled in bar on this code, with MPa and psi scales and an external round gauge available as options. Thread is NPT here; PT (standard) and G (BSPP) versions can be ordered, and a no-bracket (J) variant exists for panel or manifold mounting.
One honest note before ordering: AirTAC publishes flow for this series as curves, not a single rated figure, so send us your air demand and line pressure and we will confirm the correct size against the datasheet before you commit.
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 performance curves rather than a single rated figure, so we do not quote one number. Tell us your line pressure and the air demand of the equipment you are feeding, and we will confirm the sizing against the datasheet on request before you order.
The M in the code selects a manual drain: condensate collected in the bowl is released by operating the drain by hand. It is the right choice where the unit is accessible and someone checks it as part of a routine; for unattended or hard-to-reach installations, order a GFR code with an automatic or differential-pressure drain instead. Note that the manual-drain version also carries the wider 0.05-0.9 MPa (7-130 psi) regulation range.
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.