The AirTAC GFR400C10AF2 AirTAC Filter Regulator 3/8 in PT 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 GFR400C10AF2 is a filter regulator: one body that removes water and particulate from compressed air and regulates downstream pressure. This size 400 unit is fitted with a 3/8 in PT port, the standard 40 um filter element, and an automatic drain that ejects collected condensate without manual attention. The standard-type regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi), and the embedded square gauge fitted here reads in psi. A mounting bracket is included; no reverse/check valve is fitted. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR filter-regulator family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, and is available with manual, automatic or differential-pressure drains, a 5 um element option, MPa/psi/bar gauge scales, G or NPT thread options, and bracket or no-bracket variants. Flow for this series 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 | GFR400C10AF2 AirTAC Filter Regulator 3/8 in PT |
|---|---|
| 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) |
Feeds clean, regulated air to the tool-clamp and chip-clearing circuits of a CNC machining centre, with the automatic drain keeping condensate out of the valves during long unattended runs.
Sits ahead of the directional valves on a pneumatic stamping press, filtering shop air to 40 um and holding a steady regulated pressure so the press cycle stays repeatable.
Prepares the air feeding the valve manifold of a carton-forming packaging machine, protecting solenoid valves from water and debris while the psi gauge gives operators a set-point reference.
Choose the size and port step against the air demand of the circuit: this unit is size 400 with a 3/8 in PT port, one step up from the 300 series. Because flow is published as curves and not as a single rating, ask us to confirm sizing against your application before ordering. Drain type is a real choice: automatic (fitted here) empties the bowl on its own, manual requires operator action, and the default differential-pressure drain bleeds when the pressure differential rises. Filter grade is 40 um standard on this unit; specify the W option if the circuit needs 5 um. The square gauge reads psi here; MPa and bar scales are available, and an external round gauge is optional. Thread is PT as standard, with G (BSPP) and NPT as order options. A 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 number. Tell us your application and we will confirm the flow and sizing figures from the datasheet on request before you order.
The A in the code specifies an automatic drain, which ejects collected condensate from the bowl without operator action. The GFR family is also available with a manual drain or the default differential-pressure drain, so you can order the drain type that suits the 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.