
The AirTAC AirTAC GFR400-15 Filter Regulator (GFR40015C1WK) is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/2" 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 GFR40015C1WK is a G-series filter regulator: filtration and pressure regulation combined in a single body, with a drain bowl but no lubricator. This 400-size unit carries a PT1/2 port (PT is the standard thread), a 5 um filter element (W), the differential-pressure drain as coded, an external round gauge with MPa scale (C1) and a reverse/check valve (K). A mounting bracket is included and the 400 size uses a polycarbonate bowl. Regulated output is adjustable from 0.15 to 0.9 MPa (20-130 psi) with this drain type; maximum working pressure is 1.0 MPa (145 psi) and the temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family runs in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, and offers drain choices, 40 um or 5 um elements, round or square gauges with MPa, psi or bar scales, and G or NPT threads as catalogue alternatives to PT. Flow is published as curves rather than a single rated figure, so we confirm flow and full datasheet details on request.
| Model | AirTAC GFR400-15 Filter Regulator (GFR40015C1WK) |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (PT thread) |
| Filtering grade | 5 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 — round, MPa scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
|---|---|
| 15 | Port size PT1/2". 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Air preparation for the gripper and rotary-actuator bank on a pick-and-place module, where the 5 um element protects the small pilot valves and the regulator sets a stable working pressure for repeatable part handling.
Regulated air to nutrunners and pneumatic screwdrivers at an assembly bench, so fastening stations on the same header each get the torque pressure their tooling is set up for.
Clean, pressure-stabilised air for the lift, clamp and reject actuators on a bottling line, with the fitted check valve holding the branch against backflow when adjacent sections are vented.
Size the unit by the air consumption of the circuit it feeds: 400 with a 1/2 inch port is the mid step of the 200-600 range, and moving a size changes port and flow capacity together. Drain choices on this size are differential-pressure (as coded), automatic (A) or manual (M); element grade is 5 um (W) instead of the 40 um standard; the gauge can be round or square with MPa, psi or bar scales. Thread here is PT; G (BSPP) and NPT are orderable options, and a reverse/check valve (K) is fitted. Flow is published as curves, not a single rating, so 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. The reflux valve permits reverse flow 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 on the page. Send us your application details and we will confirm the flow and sizing from the datasheet on request.
The standard element is 40 um, which suits general plant air; the W code orders a 5 um element for circuits with sensitive valves, actuators or instruments. The rest of the configuration on this 400 size - port, drain, gauge and check valve - stays as decoded.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.