The AirTAC GFR400-10T 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 PT3/8" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR400 is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure at your set point in a single body. This unit is the size 400 model with a 3/8 in NPT port, a manual drain, the standard 40 um filter element and a fitted round gauge reading in bar. With manual drain, the regulating range is 0.05-0.9 MPa (7-130 psi) and max inlet pressure is 1.0 MPa (145 psi). The polycarbonate bowl lets you see condensate at a glance; the drain is emptied by hand, and no mounting bracket is included with this code.
This is a genuine AirTAC part. The G-series filter regulator line spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, a choice of drain type, 40 um or 5 um (code W) filtration, gauge styles and MPa/psi/bar scales, and PT, G (BSPP) or NPT threads. Working temperature is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR400-10T AirTAC Filter Regulator, NPT 3/8 in |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, bar 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 0.05 - 0.9 MPa (7 - 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. |
|---|---|
| 10 | Port size PT3/8". This body offers 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Mounted at the drop of a packaging line's air supply, the GFR400-10T delivers clean, regulated air to the clamp and fold cylinders on a carton-forming machine, with the bar gauge giving operators a visible set point.
Feeding pneumatic quarter-turn actuators and solenoid valves on a water-treatment skid, this unit strips water and pipe scale from the supply and holds a steady pressure so valve stroke timing stays repeatable.
Installed ahead of the stopper and divert cylinders on a bottling conveyor, the filter regulator keeps moisture and debris out of the cylinders while the manual drain lets maintenance bleed accumulated condensate during shift checks.
Sizing starts at the port: this unit carries a 3/8 in NPT connection on the size 400 body, the step to take when your line needs more capacity than the 200/300 sizes - confirm the exact figure from the flow curve before ordering. The manual drain (code M) suits installations where an operator can bleed the bowl on a routine; choose automatic (A) or differential-pressure (blank) instead for unattended duty. Filtration is the standard 40 um element; specify 5 um (code W) when downstream equipment needs finer protection. The fitted round gauge here reads in bar; an embedded square gauge with MPa or psi scales is also available. Threads come as PT (standard), G (BSPP) or NPT, and brackets are optional. We confirm flow and datasheet figures on request because flow is published as curves, not a single rating.
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 this series as curves, not as a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the flow and datasheet figures for the size 400, 3/8 in port against your requirement before you order.
The M in the code GFR40010MJC3T specifies a manual drain, which you empty by hand - a good fit where an operator is already on site. Ordering the A code gives an automatic drain and leaving the position blank gives a differential-pressure drain. Note the regulating range also differs by drain type: manual drain units adjust 0.05-0.9 MPa (7-130 psi).
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.