The AirTAC GFR400C15AF2GK AirTAC Filter Regulator G1/2 with Gauge 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 GFR400C15AF2GK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body, so you clean and control the air with one unit and one bowl to service. This configuration is the size 400 series with a G1/2 (BSPP) female port, the standard 40 um filter element, and an automatic drain that ejects collected condensate without manual attention. The standard-type regulator adjusts from 0.15 to 0.9 MPa (20-130 psi), and the fitted embedded square gauge reads in psi so you can set and monitor outlet pressure at a glance. A reverse/check valve is fitted to hold downstream pressure when the supply is lost, and the mounting bracket is included for panel or wall fixing. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). The bowl on this size 400 unit is polycarbonate (PC); only size 600 units use an aluminium alloy bowl.
This is a genuine AirTAC part. The GFR filter-regulator family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in up to 1 in, and is ordered with your choice of drain type (differential-pressure, automatic or manual), filter grade (40 um standard or 5 um with code W), gauge scale (MPa, psi or bar), thread (PT standard, with G and NPT as order options), and bracket. Flow is published by AirTAC as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR400C15AF2GK AirTAC Filter Regulator G1/2 with Gauge |
|---|---|
| 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 inlet to a CNC machining centre's pneumatic circuit, the GFR400C15AF2GK cleans water and swarf-laden shop air to 40 um and holds a steady, operator-set pressure to the tool-change and clamping circuits, with the psi gauge giving a visible setpoint at the machine.
On a carton-forming and sealing packaging line, this unit feeds the run of pneumatic cylinders and diverters: the automatic drain keeps condensate out of the valves during continuous shifts, and the check valve holds the downstream setting if the plant air is interrupted.
At the air drop feeding a robotic assembly cell with grippers and pick-and-place actuators, the combined filter and regulator in one body saves panel space, the bracket mounts it beside the cell controller, and the 1/2 in G-thread port matches the cell's main air supply.
Start with the port and size step: this unit is size 400 with a G1/2 port, one step up from 1/2 in alternatives in the G-series range - match the port to your line and let the required air demand drive whether 200, 300, 400 or 600 is right, since larger sizes carry larger ports and more flow capacity. Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing against the datasheet before you order. Then set the options that this code fixes: the automatic drain suits unattended duty where condensate collects steadily; the 40 um element is the standard grade for general pneumatic supply (choose 5 um, code W, only if the application needs finer filtration); and the square gauge here reads in psi, with MPa and bar scales available on other variants. Thread is G (BSPP) on this unit - PT is the catalogue standard and G/NPT are order options - and the bracket is included. If you would rather have a manual or differential-pressure drain, a different gauge scale, or no check valve, those variants exist in the same series.
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 GFR400 series as curves rather than a single rated figure, so there is no one l/min or SCFM number we can honestly quote. Send us your application details and we will confirm the flow and sizing figures from the datasheet on request before you order.
The A in the code specifies an automatic drain, which ejects collected condensate from the bowl without anyone having to open it - useful on lines that run unattended. The same GFR400 series is also available with a manual drain or the differential-pressure (blank code) default, so you can order the drain type that suits your maintenance routine.
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.