The AirTAC GFR400C10LF2WTK AirTAC Filter Regulator NPT3/8 5 um 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 GFR400C10LF2WTK is an AirTAC GFR400 filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady in a single body. This configuration is the 400 size with a 3/8 in NPT port, the low-pressure regulator type, a 5 um filtering element (code W), a differential-pressure drain, an embedded square gauge scaled in psi, and a reverse/check valve fitted. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature is -5 to 70 C, non-freezing. The size 400 bowl is polycarbonate (PC).
This is a genuine AirTAC part. The GFR family spans sizes 200 to 600 with ports from 1/8 to 1 in, thread choices of PT (standard), G and NPT, a choice of differential-pressure, automatic or manual drains, 40 um or 5 um elements, gauge styles and scales in MPa, psi or bar, and an optional reverse/check valve. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and any datasheet figure for your application before ordering.
| Model | GFR400C10LF2WTK AirTAC Filter Regulator NPT3/8 5 um |
|---|---|
| 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) |
Point-of-use conditioning on a packaging line: the 5 um element strips water and fines before the machine's cylinders and valves, while the regulator holds a steady supply pressure to the drop and the psi gauge gives a local readout.
Feeds an end-of-arm gripper circuit on a handling robot where a stable, lower regulated pressure suits the gripper, and the reverse/check valve holds the downstream circuit if shop air is interrupted.
Supplies a laboratory or QC test bench with filtered, regulated air for instruments and small actuators, with the square psi gauge mounted in the unit for direct reading at the bench.
Size steps from 200 to 600 as port size and air demand grow; this unit is size 400 with a 3/8 in NPT port. Drain choice is differential-pressure (as here, draining as the pressure differential falls), automatic, or manual. Filter grade is 40 um standard or 5 um (code W) for finer protection of downstream components - this unit carries the 5 um element. The L in the code marks the low-pressure regulator type, selected where the controlled pressure sits below the standard range; the exact adjustment range for this type is not published in the summary data, so we confirm it from the datasheet on request. The gauge here is the embedded square type scaled in psi (MPa and bar scales are alternatives), and the K code adds a reverse/check valve that holds downstream pressure if supply is lost. A mounting bracket is included. Thread on this code is NPT; PT is the standard and G is an order option. Because flow is published as curves, not a single rating, ask us to check the curve 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 flow for this family as curves rather than a single rated figure, so no rated flow number is quoted here. Send us your required flow and working pressure and we will confirm sizing against the datasheet curve on request before you order.
The L code marks the low-pressure version of the GFR400, set up for controlling pressures below the standard type's range. The exact adjustment range for this type is not published in the summary data, so we confirm it from the datasheet on request. If your circuit runs at ordinary shop pressures, the standard type is the match - tell us your set pressure and we will confirm which fits.
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.