The AirTAC GFR400C10ALF1TK AirTAC Filter Regulator NPT 3/8 in 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 GFR400C10ALF1TK is an AirTAC GFR400 filter regulator: filtration and pressure regulation combined in one body. It removes water and particulate from compressed air and regulates the downstream pressure, with no lubricator in this family. This size 400 configuration is made for 3/8 in NPT ports, carries the automatic drain (code A) so collected condensate is expelled without manual attention, uses the standard 40 um filter element, and is the low-pressure regulator type. An embedded square gauge reading in MPa is fitted, a reverse/check valve (code K) is included, and a mounting bracket comes with the unit. The polycarbonate bowl at this size serves non-freezing compressed air from -5 to 70 C, with a maximum inlet pressure of 1.0 MPa (145 psi).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600, covering ports from 1/8 in to 1 in, with drain choices (differential-pressure, automatic or manual), an optional 5 um element (code W), gauge scale choices, and G or NPT thread options to order. Flow is published as curves rather than a single rating, so ask us to confirm sizing and the full datasheet against your application before ordering.
| Model | GFR400C10ALF1TK AirTAC Filter Regulator NPT 3/8 in |
|---|---|
| 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) |
Clean, regulated air to the tape-head and flap-fold cylinders on a carton sealer, with the automatic drain handling condensate on a line that runs unattended through shifts.
Water and particle removal ahead of spray guns in a finishing booth, where the low-pressure regulation type and 40 um element support a stable, clean air supply at the gun.
Filtered, regulated air to clamp cylinders on a pneumatic workholding fixture, with the check valve helping hold the set circuit and the included bracket easing panel mounting.
Step up or down through the GFR sizes (200/300/400/600) to match the port and flow band your line needs; the 3/8 in port here sits mid-range. The automatic drain suits bowls mounted where regular manual draining is impractical; manual and differential-pressure drain variants exist if you prefer them. The 40 um element is standard - choose the W code for the 5 um grade if downstream equipment demands finer filtration. The embedded square gauge reads in MPa; external round gauges and psi or bar scales are options. PT is the standard thread, with G (BSPP) and NPT as order options - this unit is the NPT version. A bracket is included, and the reverse/check valve is already fitted. Two honest notes before you order: this is the low-pressure regulator type, and its exact adjustment range is not published on our sheet, so confirm your set pressure with us; and flow is published as curves, not a single rating, so ask us to confirm sizing against the application.
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 as curves, not as a single rated figure, so we do not quote a number on the page. Tell us your application and we will confirm the flow and the full datasheet figures on request before you order.
It is the low-pressure variant of the GFR400 regulator, intended for lower set pressures than the standard type. The exact adjustment range for this variant is not published on our sheet, so send us your required set pressure and we will confirm suitability on request.
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.