
The AirTAC GFR Filter Regulator GFR400C10F1W 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 GFR400 series is a filter regulator: filtration and pressure regulation combined in one body, with a drain bowl and no lubricator. This GFR400C10F1W is the 400 size on a PT3/8 port (standard PT thread), configured with the differential-pressure drain, a 5 um element (W - the finer grade instead of the standard 40 um), and the embedded square gauge on a MPa scale plus the round external gauge (C). Maximum working pressure is 1.0 MPa (145 psi), the regulation span is 0.15-0.9 MPa (20-130 psi) with the differential-pressure drain, and the polycarbonate (PC) bowl unit runs on compressed air from -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The G series spans 200, 300, 400 and 600 frames with ports from 1/8 to 1 in, and options include automatic or manual drains, the standard 40 um grade, a reverse/check valve (K), other gauge scales, no-gauge (N) and no-bracket (J) versions, and G (BSPP) or NPT threads instead of PT. AirTAC publishes flow as performance curves rather than a single rated figure, so we confirm datasheet and flow values on request.
| Model | Airtac GFR Filter Regulator GFR400C10F1W |
|---|---|
| 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) |
Conditioning the air feed to spray guns on a furniture or metal-finishing line, where the 5 um element takes a finer particle load out of the gun air than the standard 40 um grade.
Regulating air to pneumatic screwdrivers and riveters at an assembly bench, with the finer element helping keep line dirt out of the tool internals.
Feeding pneumatic measurement and control devices on a process skid from a 3/8 in branch, where steady regulated pressure and cleaner air are the priorities.
Choose the frame by port and flow: 200/300/400/600 step up together, and this 400 unit takes a 3/8 in PT connection. The W code selects the 5 um element over the standard 40 um - pick it where cleaner air at the point of use matters. Drain choice remains open: the coded differential-pressure drain quotes 0.15-0.9 MPa (20-130 psi) regulation, manual-drain versions 0.05-0.9 MPa (7-130 psi), with an automatic drain also available. Gauge scales come in MPa, psi or bar, and a reverse/check valve can be added with K. Thread is PT as standard, with G (BSPP) and NPT as catalogue options, and the bracket is included (J deletes it). Because flow is published as curves, not a single rating, ask us to confirm sizing against your application before ordering.
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 G-series flow as performance curves, not as a single rated figure, so we do not state a number here. Send us your flow and pressure requirements and we will confirm the datasheet figures and check the sizing on request before you order.
The W code fits a 5 um element instead of the standard 40 um, suiting applications that want cleaner air at the point of use such as spray finishing or instrument feeds. Regulation span, drain, gauges and the PT3/8 port are unchanged; ask us to confirm sizing from the datasheet curves before ordering.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.