The AirTAC GFR400C10AC2 AirTAC Filter Regulator PT3/8, Auto Drain 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 GFR400C10AC2 is an AirTAC GFR400 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This size 400 unit is threaded PT3/8 (3/8 in), carries the standard 40 um filter element, and is fitted with an automatic drain, so collected condensate is expelled from the bowl without anyone having to open it. The regulator adjusts from 0.15 to 0.9 MPa (20-130 psi), and the round gauge on the unit is scaled in psi so downstream pressure can be read and set directly. Maximum inlet pressure is 1.0 MPa (145 psi), operating temperature is -5 to 70 C (non-freezing), the bowl on the 400 frame is polycarbonate, and the mounting bracket is included.
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 can be ordered with a differential-pressure, automatic or manual drain, a finer 5 um element (code W), a square or round gauge in MPa, psi or bar scale, G (BSPP) or NPT threads, or without the bracket. Flow for these units is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before you order.
| Model | GFR400C10AC2 AirTAC Filter Regulator PT3/8, Auto Drain |
|---|---|
| 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) |
Mounted at the drop of a packaging machine's air ring main, this unit cleans water and scale out of the supply and holds a steady regulated pressure to the carton-sealer and case-erector cylinders, while the automatic drain keeps condensate out of the bowl during continuous shifts.
Feeding an air-over-oil or cylinder-driven bench press, the 40 um element protects the valve stack from particulate carryover and the psi-scaled round gauge lets the operator set and verify clamping pressure at the station without a separate gauge panel.
On a paint or coating line, this filter regulator conditions the atomizing air: the 40 um element removes water and debris that would spoil finish quality, the regulator holds a stable gun pressure, and the automatic drain copes with moisture loading through long spray runs.
Start with the port and frame: this unit is size 400 with a PT3/8 connection, and the family steps through 200/300/400/600 as ports and flow capacity grow - match the frame to your line's air demand and step up if the curve is marginal; we will confirm flow against the published curves on request. Drain type is a real decision: automatic (fitted here) keeps the bowl clear on its own, manual suits attended installations, and the default differential-pressure drain uses the pressure drop across the element. Filter grade is 40 um standard; specify code W for 5 um where finer protection matters. Gauge scale can be MPa, psi or bar, and threads can be ordered as G (BSPP) or NPT instead of the PT standard. A bracket is included; J orders the unit without one.
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 series as performance curves rather than a single rated number, so there is no one l/min or SCFM figure we can honestly quote. Tell us your working pressure and demand and we will confirm the sizing from the datasheet curves on request before you order.
The A in GFR400C10AC2 means the bowl drain expels collected condensate automatically, which suits unattended or continuous-duty installations. The same GFR400-10 unit can be ordered with a manual drain or with the default differential-pressure drain, and with a 5 um element (code W), a different gauge scale, or G/NPT threads if your piping needs them.
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.