The AirTAC GFR400C15C2GK AirTAC Filter Regulator 1/2 in (G1/2) 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 GFR400C15C2GK is an AirTAC GFR400 filter regulator: water and particulate filtration plus downstream pressure regulation combined in a single body. This configuration is decoded as a size 400 unit with a 1/2 in G-thread (BSPP) port, the standard 40 um filter element, and a differential-pressure drain that bleeds accumulated condensate automatically whenever the pressure differential across the element is high enough - no daily manual draining on lightly loaded lines. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), a round external pressure gauge on a psi scale, and a reverse/check valve (code K) that helps hold the downstream setting when upstream supply is interrupted. Maximum inlet pressure is 1.0 MPa (145 psi); working temperature is -5 to 70 C, non-freezing. The polycarbonate bowl suits size 400, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, optional 5 um elements (code W), automatic or manual drains, square embedded or round external gauges in MPa, psi or bar scales, and PT, G or NPT threads. Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR400C15C2GK AirTAC Filter Regulator 1/2 in (G1/2) |
|---|---|
| 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) |
Point-of-use conditioning ahead of a CNC machine's pneumatic clamp and tool-change circuits: the 40 um element catches pipe-scale and condensed water from the header, while the regulator holds a steady setting for clamping repeatability and the check valve holds it during supply dips.
Feeding the cylinders and air grippers on a carton-forming or case-packing line, where the 1/2 in port serves the branch, the differential-pressure drain keeps condensate off the valves, and the psi gauge lets maintenance verify set pressure at a glance.
Conditioning the air to diverters, stoppers and pusher cylinders along a conveyor system: filtered, regulated air protects the directional valves, the psi-scaled gauge documents the setting, and the reverse/check valve keeps stations from drifting when the main supply cycles.
Start with the port and size step: this unit is size 400 with a 1/2 in G1/2 port - step up or down (200/300/400/600) if your line's flow demand points to a different port, and let us check the flow curve against your consumption before you commit. Drain choice matters: differential-pressure (this unit) drains on pressure differential, automatic (A) drains on a timed/level basis, manual (M) needs someone to open the drain - pick per how often the line runs. Filter grade is 40 um standard; specify W for the 5 um element where downstream valves or cylinders need finer protection. The round gauge here reads psi; square embedded gauges and MPa or bar scales are alternatives. Thread is G (BSPP) on this code; PT is the catalogue standard and NPT is orderable - all are specifications, not delivery terms. Bracket is included; the reverse/check valve (K) is fitted. Because flow is published as curves and not a single rated figure, 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, not as a single rated figure, so we do not quote a l/min or SCFM number. Tell us your operating pressure and air consumption and we will confirm the sizing from the datasheet flow curve on request before you order.
In the GFR code, C2 specifies the optional external round gauge on a psi scale (the embedded square gauge in MPa, psi or bar scales is the standard alternative), and K specifies a reverse/check valve that helps hold the downstream pressure setting if the upstream supply drops. Both are decodable order options, as are the 5 um (W) element, automatic (A) or manual (M) drains, and NPT or PT threads in place of the G thread fitted here.
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.