The AirTAC GFR400C10LC2 AirTAC Filter Regulator 3/8 in PT, 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 GFR400C10LC2 is a size-400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is fitted with PT3/8 ports, a 40 um standard filtration element, and a differential-pressure drain that bleeds collected condensate automatically whenever the pressure differential across the element is high enough, so no manual draining routine is needed. It is the low-pressure (L) type, intended for circuits regulated well below standard line pressure, and it carries a round external pressure gauge scaled in psi. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C (non-freezing). The polycarbonate bowl is standard at this size, and a mounting bracket is included.
This is a genuine AirTAC part from the GFR400 series, one of four sizes (200, 300, 400, 600) with port sizes from 1/8 to 1 inch. Across the G-series you can order alternative drain types, a 5 um (W) element, G (BSPP) or NPT threads, different gauge scales, and a reverse/check valve where the family supports it. Flow for this series is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet and sizing figures for your application on request.
| Model | GFR400C10LC2 AirTAC Filter Regulator 3/8 in PT, 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 a machining or assembly cell, this filter regulator conditions and regulates the air feeding clamping cylinders and pneumatic press tools, keeping water and swarf out of the valves while the low-pressure type holds the circuit at the reduced setting the fixture was designed around.
On cartoning and case-packing lines, the PT3/8 connection and 40 um element protect the directional valves and sealing cylinders from condensate carryover, while the psi-scaled gauge lets operators verify set pressure at a glance during changeover.
For actuated process valves and positioner pilot supplies in a plant utility air network, the differential-pressure drain keeps condensate from accumulating in the bowl without operator attention, and the low-pressure regulation suits pilot circuits that run well below main header pressure.
Start with the port step: this unit is PT3/8 at size 400, the larger of the mid sizes - step up to size 600 if your line may grow, or step down to 200/300 for compact circuits. Because flow is published as curves and not a single rated number, tell us your application and we will confirm sizing against the datasheet before you order. Filtration is the 40 um standard element; specify the 5 um (W) option only where downstream components demand finer air. The differential-pressure drain suits installations that see enough pressure variation to self-purge; if your line holds steady pressure, ask about the automatic or manual drain variants. The round gauge on this unit reads in psi; MPa and bar scales are available. Thread is PT as standard, with G (BSPP) and NPT as orderable options, and the included bracket simplifies panel or frame mounting.
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 figure, so we do not quote one number. Tell us your inlet pressure, downstream demand and allowable pressure drop, and we will confirm the datasheet curves and sizing for your application on request before you order.
The L in this code marks the low-pressure regulator variant, intended for circuits regulated well below standard line pressure; the exact adjustment range for this variant is not published, so we will confirm it from the datasheet on request. The unit still accepts up to 1.0 MPa (145 psi) at the inlet, filters to 40 um, drains by differential pressure, and carries a round psi gauge.
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.