The AirTAC AirTAC GFR40015LC2WT Filter Regulator NPT1/2, 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 PT1/2" 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 GFR40015LC2WT is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration carries a 1/2 in NPT port, the fine 5 um filter element (code W), the differential-pressure drain that bleeds condensate automatically as flow passes through, a fitted round pressure gauge reading in psi, and the low-pressure regulator type for applications that work below standard supply pressures. The polycarbonate bowl suits the 400 size, and the mounting bracket is included.
This is a genuine AirTAC part from the GFR series, which 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 drains, 40 um standard or 5 um fine filtration, standard or low-pressure regulation, and square or round gauges in MPa, psi or bar scales. Published flow data appears as curves rather than a single rating, so ask us to confirm sizing figures and the datasheet for your application before ordering.
| Model | AirTAC GFR40015LC2WT Filter Regulator NPT1/2, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (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 | Fitted — round, psi scale |
| 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.
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 10 = PT3/8", 15 = PT1/2". |
| (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. |
| (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. |
| 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 | GFR400 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
A fixture line that grips with air cylinders at reduced supply pressure gets filtration and low-pressure regulation in one body, with the 5 um element protecting the clamp valves from particulate carryover.
On a cartoning or bagging line, this unit cleans the shop air of water and 5 um particles and holds a steady regulated supply to the diverter and sealing cylinders, with the psi gauge giving operators a local reading.
Positioners and pilot-operated process valves need clean, stable low-pressure air; this filter regulator conditions the supply line, and the differential-pressure drain carries off condensate without operator attention.
Step up or down through the GFR sizes (200/300/400/600) to match the port and flow your line needs; this unit is the 400 size with a 1/2 in NPT port. Choose the drain: differential-pressure (this unit, self-acting with flow), automatic (positive timed purge), or manual (operator-dumped). Choose the element: 40 um standard or 5 um fine (this unit, code W) where downstream valves and actuators need cleaner air. Gauges come embedded square as standard or external round like this one, in MPa, psi or bar scales; this unit reads psi. Thread is PT as standard, with G (BSPP) and NPT (this unit) as order options, and a bracket is included. Note that the low-pressure regulator type in this code has a range not published in the catalogue - confirm it with us. Because flow is published as curves rather than a single rated figure, send us your application details 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. 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 performance curves, not as a single rated figure, so we do not quote a number here. Tell us your line pressure and the flow your application needs and we will confirm the correct size from the datasheet curves before you order.
The code spells it out: C2 selects the external round gauge with a psi scale (the embedded square gauge is the standard fitting), and W selects the fine 5 um element in place of the standard 40 um. The L also marks the low-pressure regulator type. All of these are order-time choices, so if you would rather have the standard 40 um element, a square MPa gauge or a different scale, ask us for the equivalent code.
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.