The AirTAC GFR400C15F2GK 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 AirTAC GFR400C15F2GK is a 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 has a G1/2 (1/2 in) port with G (BSPP) thread, a 40 um standard filter element, a differential-pressure drain, an embedded square gauge scaled in psi, a fitted reverse (check) valve and a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the regulator adjusts from 0.15 to 0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and catalogue options include a 5 um element (code W), automatic or manual drain, gauge scales in MPa or bar, a low-pressure regulator type, and NPT or PT thread in place of G. The size 400 bowl is polycarbonate (PC), suited to general plant air. Flow is published as curves rather than a single rating, so ask us to confirm sizing or any datasheet figure for your application before ordering.
| Model | GFR400C15F2GK 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) |
Installed at the air drop to a CNC machining centre, the unit strips water and scale from the shop air feeding tool-change and clamping cylinders and holds a steady set pressure so tool-release sequences repeat without drift.
Mounted on the air drop along a bottling hall conveyor, it cleans the supply before the pusher and stopper cylinders and keeps their operating pressure fixed through the shift despite header fluctuations.
Fitted ahead of pneumatic clamp cylinders on an automotive trim line, the filter regulator protects the clamps from condensate and particulate carryover and lets each station hold its own set pressure independently of the main header.
Choose the size and port against the air consumption of the downstream circuit: this unit is size 400 with a G1/2 (1/2 in) port, one step up from size 300 and one below size 600. Drain type is a real choice: the differential-pressure drain fitted here needs no day-to-day setting, the automatic drain (code A) discharges as condensate collects, and the manual drain (code M) is emptied by hand. The 40 um element is standard; specify 5 um (code W) only where finer particulate removal is required. The embedded square gauge here reads in psi; MPa or bar scales and an external round gauge are alternatives. This unit has G (BSPP) thread; PT is the standard thread and NPT is a catalogue option to order. A mounting bracket is included. Because flow is published as curves rather than a single rated figure, send us your flow and pressure requirements 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 a number here. Send us your required flow and working pressure and we will confirm from the datasheet whether this 1/2 in size 400 unit suits your application before you order.
The differential-pressure drain fitted on this unit opens on its own once the pressure drop across the 40 um element builds up, so it needs no day-to-day attention. If you want condensate discharged as it collects, order the automatic-drain version (code A); if you prefer to drain the polycarbonate bowl by hand on a schedule, order code M.
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.