The AirTAC GFR40015MLC1TK AirTAC Filter Regulator NPT1/2 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 GFR40015MLC1TK is a GFR-series filter regulator: water and particulate filtration plus pressure regulation in a single body. This 400-size unit is built with 1/2 in NPT ports, a manual drain bowl in polycarbonate, a 40 um standard filter element, and the low-pressure regulator type for applications that run at reduced downstream pressures. It ships as configured with an external round pressure gauge scaled in MPa and a built-in reverse (check) valve that holds the downstream circuit when upstream supply is lost. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing); a 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, and options include automatic, manual or differential-pressure drains, a 5 um element (code W), square or round gauges with MPa, psi or bar scales, G (BSPP) or NPT threads in place of the PT standard, and bracket variants. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and any datasheet figure against your application before ordering.
| Model | GFR40015MLC1TK AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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. |
| (blank) | Mounting bracket included. |
| (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) |
Filter and regulate the air feeding powder spray guns on a finishing line, where clean, moisture-reduced air at a low controlled pressure keeps coating quality consistent.
Condition the shop-air feed to small pilot rigs and test benches that need filtered air held at a gentle regulated pressure, with the check valve holding the setting between runs.
Supply the light-duty air cylinders that open gates and flaps on a packaging conveyor, where the low-pressure regulator type and 40 um filtration suit sensitive, low-force actuation.
Start with the port step: this unit is 400 size with 1/2 in NPT ports, one step above the 300 frame, so match it to your line size and the flow your circuit needs. Because flow is published as curves and not a single rating, send us your application details and we will confirm sizing from the datasheet before you order. On filtration, the fitted 40 um element is the standard grade; if you need finer protection for downstream components, the 5 um W-grade element is the available alternative. The manual drain means an operator opens the bowl drain to expel collected condensate, which suits stations that are checked routinely; automatic or differential-pressure drains are the choices where unattended purging matters. This is the low-pressure (L) regulator type, chosen where the controlled downstream pressure sits below what a standard regulator targets - we will confirm the exact adjustment range from the datasheet on request. The round gauge fitted here reads in MPa; psi and bar scales and the embedded square gauge are the other gauge options. Thread is NPT as coded, with PT (standard) and G (BSPP) available to order, and the mounting bracket is included.
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 G-series flow as curves rather than a single rated figure, so we do not quote a l/min or SCFM number. Send us your application - line pressure, downstream demand and duty - and we will confirm the flow curve and sizing for this 400-size, 1/2 in unit from the datasheet before you order.
The M in the code sets a manual drain: an operator opens the bowl drain to purge collected water, which suits stations checked as part of a routine. The C1 sets the external round gauge with an MPa scale; psi or bar scales and the embedded square gauge are the alternative options. The K adds a reverse (check) valve, and the L marks the low-pressure regulator type - we confirm its exact adjustment range from the datasheet 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.