The AirTAC GFR20008MJNWTK AirTAC Filter Regulator NPT1/4 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 GFR20008MJNWTK is a size 200 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built with a 5 um filter element (the finer of the two catalogue grades), a manual drain bowl in polycarbonate, a built-in reverse/check valve that holds downstream pressure when the upstream supply is lost, and no gauge fitted. The outlet pressure is set by turning the regulating knob, with an adjustment range of 0.05-0.9 MPa (7-130 psi) on this manual-drain version, and the 1/4 inch NPT port suits compact supply drops, machine panels and point-of-use take-offs.
This is a genuine AirTAC part. The GFR series is published in sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of manual, automatic or differential-pressure drain, 40 um standard or 5 um (W) filtration, optional gauge, 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 before ordering.
| Model | GFR20008MJNWTK AirTAC Filter Regulator NPT1/4 |
|---|---|
| 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 | Not fitted |
| 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. |
| J | Supplied without bracket. |
| 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. |
| 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) |
Point-of-use conditioning on a machining centre: the 5 um element strips water and fine particulate before air reaches the tool-changer and clamping valves, while the regulator holds a steady set pressure and the check valve prevents backflow through the drop during supply interruptions.
On a packaging conveyor, the GFR feeds divert gates and pusher cylinders: the regulator pins the working pressure so cylinder speed stays repeatable, the 5 um grade protects the directional valves, and the manual drain is bled at shift start on a line that runs attended.
A lab bench running pneumatic sample handlers and purge lines: the 5 um element and regulated output give clean, stable air to sensitive instruments, the compact 1/4 inch NPT body fits under the bench, and the check valve holds the set pressure if the house supply dips.
Start with the port step: this unit is the size 200 body with a 1/4 inch NPT thread, the smallest GFR frame, so size up to GFR300/400/600 if your line flow demands a larger port. Because flow is published as curves and not as a single rated figure, send us your application details and we will confirm sizing against the datasheet before you order. This unit already carries the two choices that most affect operation: the 5 um (W) element for finer filtration than the 40 um standard, and the manual drain, which needs someone to bleed the bowl periodically - choose automatic or differential-pressure drain if the unit will sit unattended. The fitted reverse/check valve keeps downstream pressure stable through supply dips. No gauge is fitted (code N), so add a separate gauge if you need to read the regulated pressure; PT is the standard thread and G or NPT are ordered as options, with the bracket omitted on this code.
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 performance curves rather than a single rated figure, so there is no one rated-flow number we can honestly quote. Tell us your application and required flow, and we will confirm the datasheet curve figures for this 1/4 inch size 200 unit before you order.
The M in the code selects the manual drain: collected condensate stays in the polycarbonate bowl until someone opens the drain. That is fine on attended equipment with a regular walk-round, but for unattended or hard-to-reach installations choose an automatic (A) or differential-pressure drain version instead.
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.