The AirTAC GFR400C10LF2G AirTAC Filter Regulator, G3/8, 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 GFR400C10LF2G is an AirTAC GFR400 filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This size 400 unit carries a 3/8 in G (BSPP) port, filters to 40 um, and is the low-pressure regulator type with an embedded square gauge scaled in psi. A differential-pressure drain removes collected condensate without manual emptying, the polycarbonate bowl suits this size, and a mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
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 options include a 5 um filter element (code W), automatic or manual drain, alternative gauge scales (MPa, psi or bar), an external round gauge, and PT or NPT threads in place of G. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR400C10LF2G AirTAC Filter Regulator, G3/8, 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) |
Air preparation for a pneumatic press or clamping fixture that runs at reduced line pressure: the GFR400 filters incoming air to 40 um and holds the regulator setting downstream, with the psi gauge giving the operator a direct pressure reading at the machine.
Conditioning the air feed to conveyor-mounted cylinders and diverters on a packaging line: the combined filter regulator removes water and particulate before it reaches valves and cylinders, and the differential-pressure drain keeps condensate off the floor without daily bowl emptying.
Point-of-use preparation for a CNC machining centre's pneumatic circuits - tool changers, workpiece clamps and coolant systems - where a single 3/8 in unit conditions the branch feed instead of separate filter and regulator bodies.
Choose the size by port and expected flow: size 400 with a 3/8 in G port sits mid-range in the family (200 to 600, ports 1/8 to 1 in). Because flow is published as curves rather than a single rating, send us your flow and pressure requirements and we will confirm the correct size against the datasheet before you order. Other decodable choices: drain type (differential-pressure as here, automatic, or manual), filter grade (40 um standard, 5 um with code W), gauge scale (this unit: embedded square, psi; MPa and bar also available, with an external round gauge as an option), thread (G here; PT is the standard thread and NPT is an order option), and bracket (included here; code J omits it). This is the low-pressure regulator type; its exact adjustment range is not published, so confirm it with us if your set pressure is critical.
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 required flow and working pressure and we will confirm against the datasheet whether this 3/8 in size 400 unit is correctly sized, before you order.
The L in the code selects the low-pressure regulator variant, intended for circuits whose set pressure sits below the standard type's range. The exact adjustment range for this variant is not published in our data, so if your set pressure is critical, confirm it with us on request. Everything else - 40 um filtration, differential-pressure drain, square psi gauge, G3/8 port and included bracket - is unchanged.
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.