The AirTAC GFR400C15AF2WGK AirTAC Filter Regulator G1/2, 5 um 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 GFR400C15AF2WGK is an AirTAC GFR400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the size 400 unit with a G1/2 (1/2 in) female port, 5 um filtration (the finer of the two catalogue grades), an automatic drain that discharges collected condensate without manual attention, an embedded square gauge reading in psi, a fitted reverse/check valve, and the mounting bracket included. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator adjusts from 0.15 to 0.9 MPa (20-130 psi), and the operating temperature range is -5 to 70 C (non-freezing). The bowl on this size is polycarbonate; size 600 units in the family use aluminium alloy.
This is a genuine AirTAC part. The GFR filter-regulator family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, a choice of differential-pressure, automatic or manual drains, 40 um standard or 5 um (W) filtration, square or round gauges with MPa, psi or bar scales, 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 figures for your application on request.
| Model | GFR400C15AF2WGK AirTAC Filter Regulator G1/2, 5 um |
|---|---|
| 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) |
Feeding filtered, pressure-regulated air to pneumatic clamps, tool-change actuators and chip-blowing nozzles on a CNC machining centre, with the 5 um element protecting fine valve spools and the automatic drain handling condensate through long unattended shifts.
Conditioning the air supply to diverters, pushers and sealing cylinders on a packaging or conveyor line, where the regulator holds a stable setting for consistent cylinder stroke times and the automatic drain keeps moisture out of the distribution run.
Supplying cleaned, regulated air to grippers, capper heads and rinse nozzles on a bottling line, where the 5 um grade limits carryover of water and particles and the built-in gauge lets technicians verify and set line pressure in psi at the point of use.
Choose the size and port step against the air consumption of the machine being fed: this unit is size 400 with a G1/2 (1/2 in) port, one step up from size 300 (3/8 in) and below size 600 (1 in). Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application before ordering. The drain choices are differential-pressure (the default, draining on a pressure drop), automatic (as fitted here, draining continuously without attention) and manual; the filter grade is 40 um standard or 5 um with the W code (fitted here). Gauges are an embedded square gauge as standard or an optional external round gauge, with MPa, psi or bar scales - this unit carries the square gauge in psi. Thread is PT as the catalogue standard with G (as ordered here) and NPT as options, and the bracket is included on this configuration.
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 rated flow, Cv or SCFM number for this unit. Tell us your application and required air consumption and we will confirm the sizing against the datasheet curves on request before you order.
The A in the code specifies an automatic drain, which discharges collected condensate from the bowl without anyone opening it - useful on lines that run unattended. The catalogue alternatives are the differential-pressure drain (the default, which drains when the pressure drops) and the manual drain (code M, emptied by hand); manual-drain versions also carry a wider 0.05-0.9 MPa (7-130 psi) regulation range versus 0.15-0.9 MPa (20-130 psi) on this unit.
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.