The AirTAC GFR400C15MJC2WK AirTAC Filter Regulator PT1/2, 5 um 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 GFR400C15MJC2WK is an AirTAC GFR400 filter regulator: filtration and pressure regulation combined in one body. It removes water and particulate from compressed air and holds downstream pressure steady, with a 1/2 in PT port, a manual-drain polycarbonate bowl, and a 5 um filter element - the tighter of the two available grades. This configuration carries a round pressure gauge reading in psi, a reverse/check valve, and the standard regulator with an adjustment range of 0.05-0.9 MPa (7-130 psi). Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR series is offered in four sizes (200, 300, 400 and 600) with ports from 1/8 to 1 in, a choice of manual, automatic or differential-pressure drains, 40 um or 5 um filtration, gauge style and scale options, G and NPT thread variants, and bracket choices. Flow is published as curves rather than a single rated figure, so we confirm the datasheet figures for your application on request.
| Model | GFR400C15MJC2WK AirTAC Filter Regulator PT1/2, 5 um |
|---|---|
| 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) |
Feeding clean, regulated air to the pneumatic clamps and tool-changer cylinders of a CNC machining cell, with the 5 um element protecting tight-tolerance valve spools from particle carryover.
Conditioning the supply to case-erector and carton-sealing cylinders on a packaging line, where the regulator holds a steady setting as multiple actuators cycle and the manual drain is bled at shift checks.
Serving a robotic paint line in an automotive paint booth, where the 5 um grade strips water and particulate ahead of spray valves and the reverse/check valve guards against backflow into the drop.
Step up or down through the GFR sizes (200, 300, 400, 600) to match the port and flow band your line needs; this unit sits at size 400 with a 1/2 in PT port. Choose the drain type to suit supervision: manual (this unit) needs periodic bleeding, automatic suits unattended duty, and differential-pressure drain is the series default. Pick 40 um for general protection or 5 um (this unit, code W) where finer particle removal matters. Gauge style and scale are selectable - embedded square gauge standard, external round gauge optional, in MPa, psi or bar scales (this unit: round, psi). Thread is PT as standard with G and NPT as order options, and a bracket can be added or omitted (this unit: no bracket). Flow is published as curves, not a single rating, so 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 l/min or SCFM number we can honestly quote. Tell us your line pressure and the flow your application needs, and we will confirm the sizing from the datasheet on request before you order.
The M in the code specifies a manual drain: condensate collects in the polycarbonate bowl and is bled by hand at service intervals. If the unit will sit where nobody drains it regularly, the same GFR400 body is available with an automatic drain (code A) or the series-default differential-pressure drain - note the regulator adjustment range differs by drain type, with manual-drain units covering 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.