The AirTAC GFR40015MJF3T 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 (NPT1/2) connection handles both jobs in the air-preparation line. This configuration is the 400 size with a manual drain, a 40 um standard filter element, and a square pressure gauge reading in bar; the regulator is the standard type with an adjustment range of 0.05-0.9 MPa (7-130 psi). 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 polycarbonate (PC).
This is a genuine AirTAC part. The GFR family is available in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and with options including automatic or manual drains, a 5 um (code W) filter element, different gauge scales, G or NPT threads, and a mounting bracket. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures for your application on request.
| Model | GFR40015MJF3T 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 | Standard 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 — square, 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. Standard type, regulating 0.05 - 0.9 MPa (7 - 130 psi). 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. 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) |
Installed at the drop from a plant air main to supply clean, regulated air to a production cell, with the manual drain emptied during routine rounds and the bar gauge giving operators a local setpoint readout.
Feeding filter-regulated air to pneumatic cylinders and actuators on packaging or conveyor equipment, where the 1/2 inch port suits larger lines and the 40 um element keeps water and debris out of the valves.
Placed upstream of directional control valves and air actuators on automated machinery, holding a stable downstream pressure within the 0.05-0.9 MPa adjustment range to keep actuator sequencing consistent.
Size and port set the capacity step: the 400 size with a 1/2 inch port sits above the 200/300 sizes and below the 600, so match the size step to the flow your line needs. Drain type is a real choice here: this unit is manual drain (code M), meaning the bowl is drained by hand; automatic and differential-pressure drains are available in the family if you want the condensate handled without operator attention. Filter grade is the standard 40 um element; a 5 um element (code W) is the option where finer filtration is required. The gauge is the embedded square type reading in bar, with MPa or psi scales and an external round gauge available as options. Thread is NPT on this model; PT is the standard and G (BSPP) is also an order option. A mounting bracket is available; this configuration is ordered without one (code J).
Because flow for the GFR series is published as curves rather than a single rated number, 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 there is no one rated flow number we can quote. We will confirm the datasheet and check the curve against your required flow and operating pressure on request before you order.
Code M in GFR40015MJF3T specifies a manual drain, so condensate collected in the polycarbonate bowl is drained by hand. The GFR family also offers automatic (code A) and differential-pressure (blank) drains if you want drainage without operator attention; those are separate order codes.
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.