The AirTAC GFR20008MLC1WTK AirTAC Filter Regulator NPT1/4 Low-Pressure 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 GFR200 series combines water and particulate filtration with pressure regulation in a single body, so one 1/4 in (NPT) connection does both jobs. This configuration, GFR20008MLC1WTK, carries a 5 um filter element for finer cleaning than the standard 40 um grade, a manual drain you operate by hand to empty the PC (polycarbonate) bowl, a low-pressure regulator type for circuits running below standard line pressures, a fitted round MPa gauge for direct downstream pressure reading, and a built-in reverse (check) valve. A mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part from the GFR filter-regulator line, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of drain types, 40 um or 5 um filtration, gauge styles and scales, and PT, G or NPT threads. Because AirTAC publishes flow only as curves rather than a single rating, we confirm flow and other datasheet figures for your application on request before you order.
| Model | GFR20008MLC1WTK AirTAC Filter Regulator NPT1/4 Low-Pressure |
|---|---|
| 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 | 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, MPa 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 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. |
| 1 | Gauge scale: MPa. 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) |
Feeding sample-preparation pneumatics and purge-air lines on laboratory analysers, where the 5 um element protects sensitive components and the low-pressure regulator type holds a gentle supply pressure read directly on the round MPa gauge.
Regulating and cleaning air to soft-grip clamps and low-pressure cylinders on a bench-top assembly fixture, with the check valve holding the set pressure if upstream supply dips and the manual drain cleared during shift-start checks.
Supplying filtered, regulated pilot air to positioner-controlled pneumatic valves on a bottling or filling line, where fine 5 um filtration keeps pilot orifices clean and the mounted gauge lets technicians verify setpoint at a glance.
Start with size and port: the 200 size with 1/4 in NPT ports suits compact circuits; step up to 300, 400 or 600 if the application's air demand is larger - match the port step to your piping and let us confirm the flow curve against your consumption before ordering. This unit is the low-pressure regulator type, chosen where the circuit holds pressure below standard line settings; the exact adjustment range for the low-pressure version is not published, so ask us to confirm it. The 5 um (W) element is the right pick when downstream valves or instruments need finer air than the standard 40 um grade. The manual drain (M) suits installations where an operator can bleed the bowl on a routine; choose automatic or differential-pressure drain codes if the unit is hard to reach. The fitted round MPa gauge is one of several gauge styles and scales (MPa, psi, bar) available; PT is the standard thread and G or NPT are order options, as reflected in this NPT-coded model. Bracket included on this code; J-coded variants omit it.
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 GFR200 series as curves, not as a single rated figure, so we do not quote a number that could mislead your sizing. Send us your operating pressure and air consumption and we will confirm the flow from the datasheet curves on request before you order.
The M in the code sets a manual drain: condensate collected in the PC bowl is released by operating the drain by hand. It suits units mounted within easy reach on a maintenance routine. If the unit will be hard to access, the GFR family also offers automatic (A) and differential-pressure (blank) drain codes - and the 5 um (W) element on this model can be combined with any of them.
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.