The AirTAC AirTAC GFR400C15AC2WTK Filter Regulator NPT1/2 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 GFR400C15AC2WTK is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is built with a 1/2 in NPT port, an automatic drain that ejects collected condensate without manual attention, a fine 5 um filter element (the 40 um standard element is also available in the series), a round pressure gauge reading in psi, a reverse/check valve that holds downstream pressure when the upstream supply is lost, and a mounting bracket included.
This is a genuine AirTAC part. The GFR series spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, with manual, automatic or differential-pressure drains, 40 um or 5 um filtration, gauge and scale choices, and PT, G or NPT threads. Max inlet pressure is 1.0 MPa (145 psi), the standard regulation range with automatic drain is 0.15-0.9 MPa (20-130 psi), and the working temperature range is -5 to 70 C (non-freezing). Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application.
| Model | AirTAC GFR400C15AC2WTK Filter Regulator NPT1/2 |
|---|---|
| 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) |
Feeding spray-booth and paint-pump air drops where the 5 um element limits particulate carry-over and the regulator holds a steady set pressure to the applicators.
Conditioning and regulating the air feeding carton sealers, case packers and wrapper cylinders, with the check valve holding the circuit pressure during brief supply interruptions.
A filter-regulator station ahead of pick-and-place actuators and air clamps on a robotic cell, with automatic drain handling condensate on a cell that runs unattended shifts.
Size 400 with a 1/2 in port sits in the upper half of the GFR range; step up to size 600 or down to size 300 depending on the flow your line needs. The 5 um element in this unit suits points where finer particulate matters; choose the 40 um standard element where general protection is enough. The automatic drain here suits unattended or hard-to-reach installations; manual and differential-pressure drains are alternatives in the series. The round psi gauge matches US-style reading; embedded square gauges and MPa or bar scales are options. Thread is NPT on this code; PT and G are order options. A bracket is included, and the fitted check valve holds downstream pressure on air loss.
Flow for the GFR series is published as curves, not a single rated figure, so send us your application details and we will confirm the datasheet flow and sizing 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 GFR flow as curves rather than a single rated figure, so we do not quote one number. Tell us your application and we will confirm the datasheet flow figures and check the sizing against your required flow before you order.
The A in the code means the bowl drains itself: collected condensate is ejected automatically, which suits installations that are hard to reach or run unattended. The GFR series is also available with a manual drain or the differential-pressure default drain if you prefer those for your installation.
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.