The AirTAC GFR400C10LC1TK AirTAC Filter Regulator NPT3/8 Low-Pressure 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 GFR400C10LC1TK is a size 400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is a low-pressure type, so it suits circuits that must not be pushed to standard-line pressures. It carries a 40 um standard filter element, a differential-pressure drain that bleeds collected condensate when the pressure differential across the element rises, a reverse/check valve to hold downstream pressure when supply is lost, and an external round pressure gauge scaled in MPa. The port is 3/8 in NPT and a mounting bracket is included.
This is a genuine AirTAC part from the GFR series, which spans sizes 200 to 600 with port options from 1/8 in to 1 in and PT, G or NPT threads. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm the figures against your application before ordering.
| Model | GFR400C10LC1TK AirTAC Filter Regulator NPT3/8 Low-Pressure |
|---|---|
| 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 an assembly fixture that clamps with air cylinders at reduced circuit pressure, this unit filters the shop air and holds the regulated set point, with the reverse/check valve keeping the clamp position if the supply drops.
Feeding the valve manifold of a carton-sealing or wrapping machine, the 40 um element strips water and pipe scale before it reaches the valves, while the regulator sets the pressure the machine section was designed around.
On a test bench or pilot rig where instruments and small actuators run well below main-line pressure, the low-pressure regulator gives a gentler set point and the round MPa gauge lets the operator read and log the setting.
Start with the port step: this unit is size 400 with a 3/8 in NPT port; if your line needs more or less flow, the GFR family steps through 200/300/400/600 with ports from 1/8 in to 1 in. Because this is the low-pressure type, confirm your circuit's set pressure suits a low-pressure regulator - the exact adjustment range for this variant is not published, so we will confirm it from the datasheet on request. The 40 um element is the standard grade; a 5 um element (code W) is available if finer filtration is needed. The differential-pressure drain is the default and needs no operator attention; automatic and manual drains are alternatives in the family. The fitted round gauge reads in MPa; psi and bar scales and the embedded square gauge are the other catalogue options. PT is the standard thread, with G and NPT as order options - this unit is specified in NPT. A mounting bracket is included.
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 number, so we do not quote a figure here. Tell us your application and we will confirm the flow from the datasheet on request before you order.
The L in the code marks the low-pressure regulator variant, intended for circuits set below standard-line pressures; its exact adjustment range is not published, so we confirm it from the datasheet on request. This unit also uses the differential-pressure drain: condensate collected in the bowl is discharged automatically when the pressure drop across the 40 um element rises, with no manual draining needed.
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.