The AirTAC GFR40015MLJC1TK 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 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 GFR40015MLJC1TK is an AirTAC GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in a single body, with a drain bowl but no lubricator. This size 400 unit is made for NPT1/2 ports and carries a manual drain, a 40 um standard filter element, and the low-pressure regulator type for circuits that run below normal supply pressure. It is fitted with an external round pressure gauge scaled in MPa and a reverse (check) valve, and it ships without a mounting bracket (code J). Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. The bowl on this size is PC (polycarbonate); only the 600 size uses an aluminium alloy bowl.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options that include automatic, manual or differential-pressure drains, a 5 um element (code W), embedded square or external round gauges scaled in MPa, psi or bar, G or NPT threads in place of the PT standard, and a mounting bracket. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR40015MLJC1TK AirTAC Filter Regulator NPT1/2 Low-Pressure |
|---|---|
| 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 | 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.
| 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. |
| 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 | GFR400 · PT1/2" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
On a press or fixture line where clamping cylinders must never see full header pressure, this unit filters water and swarf out of the plant air and holds a reduced, steady regulated pressure downstream, while the fitted check valve helps hold the set pressure against backflow.
Spray lines need air that is free of water and particles and regulated well below shop supply. This filter regulator conditions the feed to the spray guns and keeps the atomising pressure steady through a shift; the manual drain suits a booth checked at the start of every shift.
Pick-and-place and gating cylinders on a packaging conveyor need clean, regulated air to run consistently. This unit conditions the branch feed to the conveyor valves and actuators, with the 1/2 in port matching the branch line size.
Within GFR400 the real, decodable choices are the drain type (manual here; automatic and differential-pressure are also available), the filter grade (40 um standard as fitted; 5 um with code W), the gauge (external round, MPa scale here; the embedded square gauge is standard, with psi and bar scales optional) and the thread (PT is the AirTAC standard; G and NPT are order options - this unit is NPT). Size 400 with a 1/2 in port sits in the middle of the G-series range; step up to 600 or down to 300 as your demand curve requires. The low-pressure regulator type (code L) is the right pick when the circuit must be regulated below standard supply pressure. A bracket can be specified if this no-bracket configuration does not suit your mounting. Because AirTAC publishes flow as curves rather than one rated number, send us your application details 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. The reflux valve permits reverse flow 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. Tell us your line pressure and the demand of the equipment you are feeding, and we will confirm the flow from the datasheet on request before you order.
The M in the code means a manual drain: the bowl is emptied by hand, which suits installations that are checked on a routine. If no one will open the drain regularly, the same size is available with an automatic drain (code A) or the differential-pressure drain that is the default. Drain choice is one of the standard decodable options, along with filter grade, gauge and thread.
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.