The AirTAC GFR400C15AC2GK AirTAC Filter Regulator 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 AirTAC GFR400C15AC2GK is a size 400 filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This configuration is threaded G1/2 (BSPP), carries a 40 um standard filter element, and drains its polycarbonate bowl automatically, so collected condensate is expelled without manual attention. The regulator is the standard type with an adjustment range of 0.15-0.9 MPa (20-130 psi), a round external gauge on a psi scale is fitted, and a reverse/check valve (code K) is built in. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. A mounting bracket is included.
This is a genuine AirTAC part from the GFR series, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drains, a 5 um (code W) element option, gauge scales in MPa, psi or bar, and PT, G or NPT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GFR400C15AC2GK AirTAC Filter Regulator 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) |
Mounted at the drop feeding a CNC machining centre's pneumatic clamps and tool-change cylinders, it strips condensate and swarf-laden particles from the shop air and holds a steady regulated pressure so clamping force stays repeatable through the shift.
Installed ahead of the valve island on a carton-forming and sealing packaging machine, it cleans the compressed air feeding the sealing and ejector cylinders and keeps supply pressure constant as multiple actuators cycle, with the automatic drain handling condensate on a line that runs unattended.
Fitted at each station on an automated assembly line, it conditions the air going to pick-and-place cylinders and air-driven drivers, protecting downstream seals from water and dirt while the check valve holds the regulated circuit if the upstream supply dips.
Start with the port and size: this unit is size 400 with a G1/2 port; step up or down through sizes 200/300/400/600 as your line's flow demand changes, since larger sizes carry larger ports and more flow. Choose the drain to match access: automatic (this unit) suits unmanned or hard-to-reach installations, manual suits attended stations, and differential-pressure is the catalogue default. The 40 um element is standard; specify the W code for 5 um where finer filtration is needed. The fitted round gauge reads in psi; square embedded gauges and MPa or bar scales are the other catalogue choices. Thread is G (BSPP) here - PT is the standard thread and G/NPT are order options - and a mounting bracket is included, with J-code versions available without.
Flow for the GFR series is published as curves, not a single rated number, so send us your application details and we will confirm sizing against 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 rather than a single rated figure, so we do not quote one number. Tell us your application - inlet pressure, set pressure and the flow your equipment needs - and we will confirm the sizing against the datasheet on request before you order.
The A in the code means the polycarbonate bowl drains automatically, expelling collected condensate without anyone opening the drain - useful on unattended or hard-to-reach installations. The same GFR400 size is also available with a manual drain (code M) or the differential-pressure drain that is the catalogue default, and with a 5 um element (code W) instead of the 40 um standard 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.