The AirTAC GFR400C10LF2WT AirTAC Filter Regulator 3/8 in NPT 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 GFR400C10LF2WT is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration carries a 3/8 in NPT port, a 5 um filter element (code W) for finer filtration than the standard 40 um grade, a differential-pressure drain that bleeds condensate automatically as flow passes through, a low-pressure regulator type for circuits that run at reduced pressure, and an embedded square gauge reading in psi. A mounting bracket is included and 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 family is published in sizes 200, 300, 400 and 600 with a choice of ports, thread options (PT standard, G and NPT to order), drain types, filter grades, gauge styles and scales, and low-pressure or standard regulator types. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and any datasheet figure against your application before ordering.
| Model | GFR400C10LF2WT AirTAC Filter Regulator 3/8 in NPT |
|---|---|
| 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) |
On a fixture-clamping or workholding circuit that must run well below shop supply pressure, this low-pressure type filter regulator cleans the air and holds the reduced setting, with the psi gauge giving the operator a direct reading at the cell.
Feeding the air cylinders and actuators on a cartoning or case-packing conveyor, the 5 um element keeps fine particulate out of directional valves while the regulator sets a stable, reduced pressure for gentle product handling.
For bench-top analytical equipment, sample-handling actuators and pneumatic lab tools, this unit filters water and 5 um-scale particles from the shop air drop and regulates it down to the low pressure the instruments require.
Start with the port: this unit is 3/8 in NPT, and the size 400 step exists so larger ports carry more flow - step up or down within GFR400/GFR300/GFR600 if your line size differs. Choose the drain to match maintenance access: differential-pressure (as fitted here) needs no manual attention, automatic drains on a schedule, and manual drains suit infrequently visited installations. Choose the filter grade: 40 um is the standard element and 5 um (this unit, code W) suits finer-purity circuits. Gauge style and scale are decodable too - this one is an embedded square gauge in psi, with an external round gauge and MPa/bar scales available as options. Thread is NPT here; PT is the catalogue standard and G is an order option. A bracket is included on this unit.
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated number, and the exact regulation span of the low-pressure type is not stated as a figure in the material we hold. Send us your application and we will confirm flow and regulation figures from the datasheet before you order.
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 family as performance curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number for this unit. Tell us your application and line conditions and we will confirm the flow and sizing figures from the datasheet for you before you order.
The L in the code marks this as the low-pressure regulator variant rather than the standard type, intended for circuits that run at reduced pressure. The exact regulation span of the low-pressure type is not published as a figure in the material we hold, so ask us to confirm it from the datasheet. Everything else decodes normally: 3/8 in NPT port, 5 um element, differential-pressure drain, square psi gauge, bracket included.
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.