The AirTAC GFR400C15MC3TK 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 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 GFR400C15MC3TK is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your set point in one body. This size 400 unit is threaded NPT1/2, carries the standard 40 um filter element, has a manual drain on the bowl, a round pressure gauge reading in bar, and a built-in reverse/check valve; the mounting bracket is included.
It is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drains, 40 um standard or 5 um (W) filtration, gauge styles and scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm figures against your application - we supply the datasheet on request.
| Model | GFR400C15MC3TK AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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) |
Clean, regulated air to the tool-clamp and actuator circuits of a machining centre, with the built-in check valve blocking backflow through the unit and the gauge letting setters verify the line pressure at a glance.
Feeding the pneumatic cylinders on a carton-sealing or wrapping conveyor, where water and scale carried past the filter would score bores and the regulator keeps cylinder speeds consistent between shifts.
A bench-side supply for air-driven test rigs and fixtures, where the 40 um element protects sensitive instrumentation and the bar-scale round gauge gives a clear, repeatable set point for each test run.
Size and port set the capacity: step from 200 up to 600 as your air demand grows; this unit is size 400 with a 1/2 in NPT port. Drain choice is a real decision - differential-pressure and automatic drains bleed the bowl on their own, while this manual-drain unit needs a scheduled bleed by hand; with manual drain the regulating range is 0.05-0.9 MPa (7-130 psi). Filtration is 40 um standard, with 5 um (code W) where finer filtration is needed. Gauge scale can be MPa, psi or bar - this unit reads bar - and the thread is PT as standard with G and NPT as order options; the bracket is included here (code J deletes it). Because flow is published as curves, not a single rated figure, send us your flow and pressure requirements and we will confirm sizing 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 rather than a single rated number, so we do not quote a figure here. Send us your required flow and working pressure and we will confirm sizing from the datasheet on request before you order.
The M in the code means the bowl drain is operated by hand, so condensate must be bled on a scheduled round instead of automatically. With manual drain the regulating range is 0.05-0.9 MPa (7-130 psi). The 40 um element is standard (5 um is available as code W), the unit is rated to 1.0 MPa (145 psi) inlet, and the working temperature range is -5 to 70 C, non-freezing.
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.