The AirTAC GFR40015MLJC1T AirTAC Filter Regulator NPT1/2, Manual Drain 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 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 GFR400 series combines water and particulate filtration with pressure regulation in a single body, so one 1/2-inch unit conditions the air and sets the working pressure downstream. This configuration, GFR40015MLJC1T, is the size 400 low-pressure type with NPT1/2 threads, a 40 um standard filter element, a manual drain bowl in polycarbonate, a round pressure gauge scaled in MPa, and no mounting bracket. The low-pressure regulator type suits circuits that hold a reduced, stable setting rather than full line pressure; the manual drain is emptied by opening the bowl drain by hand as part of routine checks.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and options include automatic or differential-pressure drains, a 5 um element (code W), square or round gauges scaled in MPa, psi or bar, a reverse/check valve, and G (BSPP) or NPT threads in place of the PT standard. Rated flow is published as curves rather than a single figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR40015MLJC1T AirTAC Filter Regulator NPT1/2, Manual Drain |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (NPT thread) |
| Filtering grade | 40 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 | 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. |
| J | Supplied without bracket. |
| (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. |
| (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) |
Feeding filtered, pressure-regulated air to a pneumatic press or clamping fixture on a fabrication line, where the low-pressure regulator holds a reduced working setting for the forming or holding stroke.
Conditioning the supply air ahead of directional valves and cylinders on a packaging or cartoning machine, with the 40 um element keeping particulate and condensed water out of the valve island.
Serving a 1/2-inch air drop that supplies actuated process valves or dampers in a plant, where the regulator sets a stable reduced pressure and the manual drain is emptied during scheduled rounds.
Start with the port and size step: this unit is size 400 with 1/2-inch NPT threads, and the GFR range steps up through 200, 300, 400 and 600 as flow demand grows - match the step to your line's air consumption, which we can confirm against the published flow curves on request. This example carries the 40 um standard element; choose the W code for a 5 um element where downstream valves or instruments need finer filtration. Drain choice matters: manual (as here) needs an operator to drain the bowl, while automatic and differential-pressure drains discharge condensate without intervention. Gauges are available embedded square or external round, scaled in MPa, psi or bar; this unit has a round MPa gauge. Threads are PT as standard with G (BSPP) and NPT as order options - this one is NPT. Brackets are optional; this configuration omits the bracket. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application before ordering.
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 curves rather than a single rated figure, so we do not quote a rated flow number. Tell us your application's air consumption and line conditions and we will confirm the sizing and the relevant datasheet figures on request before you order.
The M in the code GFR40015MLJC1T specifies a manual drain, meaning condensate collected in the polycarbonate bowl is released by hand. If you would rather not rely on operator rounds, the same GFR400 size is available with an automatic drain (code A) or the default differential-pressure drain - just order the corresponding model 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.