The AirTAC AirTAC GFR400C10LC2W Filter Regulator 3/8in PT 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 GFR400C10LC2W is an AirTAC GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This size 400 unit carries a PT 3/8 in port, the 5 um filter element (the W grade, finer than the 40 um standard), a differential-pressure drain, and the low-pressure (L) regulator type. The C2 gauge code means an external round gauge scaled in psi is fitted, the mounting bracket is included, and no reverse/check valve is fitted.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and catalogue options across drain type (differential-pressure, automatic or manual), filter grade (40 um standard or 5 um), gauge style and scale, and G (BSPP) or NPT threads in place of PT. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm flow and datasheet figures for your application.
| Model | AirTAC GFR400C10LC2W Filter Regulator 3/8in PT 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) |
Conditioning the air feeding the clamp cylinders of a CNC fixture circuit: the 5 um element keeps particulate and water out of the clamping seals, while the low-pressure regulator type holds the circuit at the reduced pressure the fixture was specified for.
Supplying filtered, regulated air to the gripper and lift cylinders on a carton packaging machine, where the differential-pressure drain bleeds accumulated condensate automatically during operation and the psi gauge lets the line technician verify setpoint at a glance.
Feeding atomizing air to spray guns in a paint or coating booth, where the 5 um grade protects the gun and finish from water and debris and the low-pressure regulator type suits processes called out at reduced supply pressure.
Step the size and port against the air demand of the circuit downstream: GFR sizes 200, 300, 400 and 600 step up in port and flow capacity, and this unit is size 400 with a PT 3/8 in port. The L in the code marks the low-pressure regulator type - choose it where the circuit calls for a low-pressure variant; its exact adjustment range is not published as a single figure, so we confirm it from the datasheet on request. Drain is differential-pressure (the default); automatic (A) and manual (M) drains are order options. Filtration here is the 5 um W grade - step down to the 40 um standard element if finer filtration is not required. The fitted round gauge reads in psi; the embedded square gauge, and MPa or bar scales, are the other catalogue choices. Thread is PT as standard - order G (BSPP) or NPT if your piping needs it - and the bracket is included. Because flow is published as curves and 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 flow for the GFR series as curves, not as a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the flow and the full datasheet figures for this size 400, PT 3/8 in unit on request.
The L in GFR400C10LC2W marks the low-pressure regulator variant of the GFR400. Its adjustment range differs from the standard type and is not published as a single figure, so we confirm the exact range from the datasheet on request. If your circuit runs at ordinary supply pressures, the standard-type GFR400 in the same size and port is the alternative to consider.
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.