The AirTAC GFR40015LC3T AirTAC Filter Regulator NPT1/2, Low-Pressure is a genuine G-series filter regulator: water separation, 40 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 GFR40015LC3T is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 400 unit has a 1/2 in NPT port, a 40 um filter element, a differential-pressure drain, and the low-pressure regulator type. A round pressure gauge with bar scale is fitted, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200 to 600 with port sizes from 1/8 to 1 in, drain choices (differential-pressure, automatic or manual), a 40 um standard or 5 um (code W) filter grade, and G or NPT thread options to order. Flow is published as curves rather than a single rating, so ask us to confirm figures from the datasheet for your application.
| Model | GFR40015LC3T AirTAC Filter Regulator NPT1/2, Low-Pressure |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 40 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, bar 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. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Filtered, low-pressure-regulated air for carton-sealer and case-packer cylinders on a packaging line, with the 1/2 in port feeding multiple actuators from one drop.
Clean, regulated air for gate, stopper and diverter cylinders along a conveyor system, with water and pipe scale knocked out before they reach the directional valves.
Stable low-pressure air for pick-and-place modules and small test rigs in a laboratory automation cell, with a bar-scale gauge for direct setting checks.
Size 400 with a 1/2 in port suits drops that need more capacity than 200/300 units - match the size to the flow curve for your demand. The L code selects the low-pressure regulator type, intended for circuits set below the standard range; the exact adjustment window for this type is not published in the sheet we use, so we confirm it from the datasheet on request. The 40 um element is standard (5 um available as code W), and the differential-pressure drain bleeds condensate automatically as air flows. The round gauge reads in bar; square embedded gauges and MPa/psi scales are alternatives in the family. Thread here is NPT - PT is the standard, with G and NPT as order options. A mounting bracket is included.
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 GFR400 series as curves, not as a single rated figure, so we do not quote a number here. Send us your operating pressure and required flow and we will confirm sizing from the datasheet on request.
L marks the low-pressure regulator type, intended for circuits set below the standard range. The exact adjustment window for the low-pressure type is not published in the sheet we use, so we confirm it from the datasheet on request. The rest of the code reads: size 400, NPT1/2 port, differential-pressure drain, 40 um element, round gauge with bar scale, no reverse valve.
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.