The AirTAC GFR400C10MLJC2 AirTAC Filter Regulator PT3/8 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 GFR400C10MLJC2 is an AirTAC GFR400 filter regulator: one body that first removes water and particulate from compressed air through a 40 um filter element, then regulates the downstream pressure. This configuration is the low-pressure regulator type, sized for a PT3/8 (3/8 in) port with PT thread. It has a manual drain on the metal bowl, so condensed water is emptied by opening the drain when needed, and it leaves the factory with an external round pressure gauge reading in psi. No mounting bracket is included and no reverse (check) valve is fitted.
This is a genuine AirTAC part. The GFR400 is the size-400 member of the GFR filter-regulator range, which spans sizes 200, 300, 400 and 600 with a choice of ports, drain types, filter grades (40 um standard, 5 um optional) and gauge scales. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating 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 datasheet and sizing figures for your application.
| Model | GFR400C10MLJC2 AirTAC Filter Regulator PT3/8 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) |
Clamp cylinders on an automotive weld fixture hold parts while the gun fires. A low-pressure filter regulator upstream keeps the clamp circuit at a gentle, repeatable set pressure and strips line water before it reaches the clamp seals, with the psi gauge giving the operator a visible setpoint.
Spray guns and atomising nozzles on a finishing line need steady, low supply pressure to lay down an even film. This filter regulator cleans the air of water and 40 um-plus particles, then holds the low set pressure the gun was tuned at, with manual drain fitted for end-of-shift bowl emptying.
Gate, pusher and divert cylinders on a packaging conveyor run best at reduced pressure to avoid product damage. Feeding that circuit through this GFR400 unit filters the shop air and regulates it down at the machine, so settings stay put even as the main line pressure wanders.
Start with the port step: this unit is the size-400 body on a PT3/8 port, one step up from the size-300 on 1/4 in, so match the size to the air demand of the line - and because flow is published as curves rather than one rated figure, ask us to confirm sizing against your application before ordering. Note that this is the low-pressure regulator type, intended where the set pressure sits at the low end of the range; the exact adjustment window for the low-pressure type is confirmed on request. Drain choice matters: this unit has a manual drain, while automatic and differential-pressure drain versions empty the bowl without operator attention. Filter grade is 40 um here; specify code W for the 5 um element if finer filtration is needed. The round psi gauge on this unit is the external option - the embedded square gauge is standard, with MPa, psi or bar scales available. Thread is PT as standard; G (BSPP) and NPT are order options. A mounting bracket can be ordered if the J (no bracket) version does not suit your panel layout.
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 as curves, not as a single rated number, so we do not quote a figure here. Send us your application details and we will confirm the flow and sizing data from the datasheet before you order - that is the honest way to check fit.
This configuration carries the M (manual) drain: condensed water collects in the metal bowl and is released by opening the drain valve by hand. Choose manual drain where the unit is accessible and drained as part of a routine; if the bowl sits where nobody visits, an automatic or differential-pressure drain version removes that chore.
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.