The AirTAC GFR400C15MJF2 AirTAC Filter Regulator 1/2 in PT 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 See datasheet ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The GFR400C15MJF2 is an AirTAC GFR-series filter regulator: a single body that removes water and particulate from compressed air and regulates downstream pressure. This size 400 unit carries a PT1/2 (1/2 in) PT thread, a 40 um standard filter element, and a manual drain you operate by hand to bleed collected condensate from the metal bowl. Outlet pressure is set between 0.05 and 0.9 MPa (7-130 psi) and read on the embedded square gauge, which is scaled in psi. No reverse/check valve is fitted and no mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options include automatic or differential-pressure drains, a 5 um element (code W), gauge scales in MPa or bar, an external round gauge, and G (BSPP) or NPT threads to order. Max working (inlet) pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. 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 | GFR400C15MJF2 AirTAC Filter Regulator 1/2 in PT |
|---|---|
| Series | GFR400 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — factory standard, Factory standard 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 0.15 - 0.9 MPa (20 - 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. |
|---|---|
| C1 | Port size See datasheet. This body offers 10 = PT3/8", 15 = PT1/2". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
Mounted at the drop feeding a CNC machining cell, the 40 um element strips water and particulate from the shop air while the regulator holds a steady set pressure to the machine's pneumatic clamps and tool-change cylinders, with the psi square gauge giving operators a visible set point.
On a packaging or palletising line, the unit conditions and regulates the air feeding conveyor stopper cylinders and pick-and-place actuators, keeping supply pressure stable through shift-long duty while the manual drain is bled during scheduled line checks.
Ahead of a paint or coating spray booth, the filter stage removes water and particulate that would spoil finish quality, while the regulator holds the gun supply at the pressure the process specifies; the 1/2 in PT port suits a booth's main air drop.
Start with the port step: this unit is size 400 with a PT1/2 (1/2 in) PT thread; if your distribution runs at 3/8 in or 3/4 in, step to the matching GFR size rather than adapting bushings. Choose the drain to match your maintenance routine: manual (this unit, code M) needs a hand-operated bleed, automatic (A) drains itself, and differential-pressure (blank) is the catalogue default. Filter grade is the 40 um standard here; specify W for the 5 um element where finer particulate matters. The embedded square gauge is scaled in psi on this unit; MPa and bar scales and an external round gauge are options. Thread is PT as standard, with G (BSPP) and NPT as order options, and brackets are optional (this unit has none, code J). Flow is published as curves, not a single rating, so send us your application and we will confirm sizing from 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 GFR series as curves, not a single rated figure, so we do not quote one number. Send us your application - port size, downstream demand and set pressure - and we will confirm sizing and the relevant datasheet figures on request.
The M in the code means the metal bowl drains by hand: open the drain at your maintenance interval to bleed off collected condensate. If you prefer unattended draining, the same size is available with an automatic drain (code A) or the differential-pressure default. With a manual drain, the regulator adjustment range is 0.05-0.9 MPa (7-130 psi).
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.