The AirTAC GFR40015MLC2WT AirTAC Filter Regulator NPT 1/2 in, 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 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 GFR40015MLC2WT is a size 400 filter regulator: water and particulate filtration plus pressure regulation combined in one body. This configuration is fitted with a 5 um filter element (the tighter of the two catalogue grades), a manual drain for the PC bowl, a low-pressure regulator type, and a round pressure gauge reading in psi. The 1/2 in port is NPT thread, and the mounting bracket is included.
This is a genuine AirTAC part. The GFR family 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. Flow is published as curves rather than a single rating, so ask us to confirm the figures for your application on request.
| Model | GFR40015MLC2WT AirTAC Filter Regulator NPT 1/2 in, 5 um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (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, 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". |
| 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. |
| 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) |
On a robotic pick-and-place cell, this unit cleans the shop air to 5 um and holds a steady low setpoint to the gripper circuit, with the psi gauge giving the operator a visible reference at the panel.
Feeding clamp and lift cylinders on a bottling line, the filter stage strips water and fines before the regulator, and the manual drain lets the line crew bleed the bowl during changeover.
For benchtop lab automation running at modest pressures, the low-pressure regulator type matches the supply requirement, while the 5 um element protects valves and small-bore tubing downstream.
Size 400 with a 1/2 in NPT port sits in the upper half of the GFR range; step up to size 600 for larger ports, or down to 300/200 for smaller lines. The 5 um element suits air that carries finer particulate than the 40 um standard grade; choose manual drain when someone is on site to bleed the bowl, or automatic or differential-pressure drain where the unit should look after itself. The round gauge here reads in psi; square embedded gauges and MPa or bar scales are also catalogue options. PT is the standard thread, with G and NPT as order options, and the bracket is included with this unit. Flow is published as curves, not a single rated number, so send us your application and we will confirm sizing against the datasheet 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 GFR400 as curves, not as a single rated number, so we do not quote a figure here. Send us your line pressure, setpoint and downstream demand and we will confirm the sizing from the datasheet on request.
The M in the code selects a manual drain: someone opens the bowl drain by hand to remove collected water, instead of the automatic or differential-pressure drain options. The L selects the low-pressure regulator type, intended for lower setpoints than the standard type; the exact range is not published, so we confirm it on request.
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.