The AirTAC GFR400C10MLJF2GK 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 GFR400C10MLJF2GK is an AirTAC GFR400 filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure steady. This configuration is built around a G3/8 (3/8 in) port, a 40 um filter element and a metal drain bowl with a manual drain, so condensate is emptied by hand as part of routine checks. The regulator is the low-pressure type, fitted with an embedded square gauge scaled in psi, and a reverse/check valve is included; no mounting bracket is supplied. 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 port sizes from 1/8 to 1 inch, and options that include automatic, manual or differential-pressure drains, a 5 um element (code W), gauge scales in MPa, psi or bar, and G or NPT threads in place of the PT standard. Because AirTAC publishes flow as curves rather than a single rated figure, we confirm flow and datasheet figures for your exact model on request.
| Model | GFR400C10MLJF2GK 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) |
On a cartoning or case-packing line, the unit filters the plant air feeding clamp cylinders and holds a steady low pressure so cartons are gripped firmly without being crushed.
Feeding workholding clamps on a CNC fixture, the regulator keeps actuation pressure in the low band the fixture was designed for while the 40 um element keeps debris out of the clamp cylinders.
On weaving machines with air-jet insertion or blow-off nozzles, the unit conditions the supply and regulates it down to the low pressure the jets need, with the manual drain emptied during shift checks.
Choose the size by port and air demand: this unit steps up to G3/8 (3/8 in) in the 400 size; the 600 size gives a larger port and more flow, while 200 and 300 suit smaller circuits. Drain type is a real choice: manual (this unit) means periodic hand draining, while automatic and differential-pressure drains handle condensate for you. The 40 um element is standard - specify code W for 5 um where finer filtration is needed. The embedded square gauge here reads in psi; MPa and bar scales, and an external round gauge, are alternatives. Thread: PT is the standard, and G (this unit) or NPT are order options; a bracket is optional and this configuration is supplied without one. Flow is published as curves, not a single rating, so 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 rather than a single rated figure, so we do not quote a number here. Tell us your line pressure and air demand and we will confirm the flow from the datasheet for GFR400C10MLJF2GK on request.
The L code marks the low-pressure regulator type. Its exact adjustment range is not published in the catalogue, so we confirm it on request; the unit's maximum inlet pressure is 1.0 MPa (145 psi).
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.