The AirTAC GFR400C15C2K 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 GFR400C15C2K is an AirTAC GFR400 filter regulator: filtration and pressure regulation combined in one body. It removes water and particulate from compressed air with the standard 40 um element, then regulates downstream pressure across a 0.15-0.9 MPa (20-130 psi) adjustment range. This configuration is sized for a 1/2 in PT port, uses the differential-pressure drain (the bowl drains automatically as the pressure differential changes, with no daily manual draining), carries a round pressure gauge reading in psi, and includes a reverse/check valve that holds downstream pressure if the upstream supply is lost. The maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR series is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and with options including automatic or manual drains, a 5 um filter element (code W), different gauge scales, G or NPT threads, and bracket variations. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR400C15C2K 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) |
Installed at the point of use on a CNC machining cell's 1/2 in air drop, it filters water and swarf-carrying particulate out of the shop supply and holds a steady regulated pressure to the machine's pneumatic valves and clamps, with the check valve holding the setting through supply dips.
Mounted on the supply leg of a packaging and palletising line, it conditions the air feeding cylinder-driven case erectors, sealers and pushers, keeping moisture and particles out of the actuators while the regulator holds the pressure the line's valve bank was set up for.
Fitted ahead of the regulator-and-whip assembly at a spray booth, it removes water and pipe scale from the booth's compressed air feed so the finish is not spoiled, and the psi gauge lets the operator set and verify the gun supply pressure at the wall drop.
Sizing a GFR unit starts with the port step: this model is the 400 size with a 1/2 in PT port, one step above the 300 series, so choose it when your line is plumbed at 1/2 in and your flow demand sits above what a 300-size body serves. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application before ordering. Drain choice matters in practice: the differential-pressure drain on this model needs no daily attention, while automatic (code A) drains continuously and manual (code M) drains only when operated. The standard element is 40 um; specify W for the 5 um grade if downstream equipment needs finer filtration. The round gauge on this unit reads in psi; square embedded gauges and MPa or bar scales are the other catalogue options. PT is the standard thread, with G (BSPP) and NPT available as order options, and a bracket is included for mounting.
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.
We do not quote a single rated flow figure because AirTAC publishes G-series flow only as curves, not as one rated number. Send us your application details and we will confirm the flow and sizing figures from the datasheet on request, at no obligation.
This model's differential-pressure drain discharges collected condensate automatically when the pressure differential across the drain reaches its threshold, so no daily manual draining is needed. If you want continuous positive draining regardless of differential, specify the automatic drain (code A); if you prefer to drain on demand during checks, the manual drain (code M) is the catalogue option.
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.