The AirTAC GFR400C10MLJC2WT AirTAC Filter Regulator NPT3/8 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 GFR400 series combines water and particulate filtration with pressure regulation in a single body. This unit is built on the size 400 frame with a 3/8 in NPT thread, a 5 um filter element for finer capture than the standard 40 um grade, a manual drain on the metal bowl, and the low-pressure regulator type. It is supplied with a round pressure gauge reading in psi, without a mounting bracket, and without a reverse/check valve. 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 to 600 with ports from 1/8 to 1 in, and options that include automatic, manual or differential-pressure drains, 40 um or 5 um filtration, square or round gauges with MPa, psi or bar scales, G, NPT or PT threads, and mounting brackets. Flow is published as curves rather than a single rating, so ask us to confirm sizing and full datasheet figures for your application.
| Model | GFR400C10MLJC2WT AirTAC Filter Regulator NPT3/8 |
|---|---|
| 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) |
Filtering supply water and particles out and stepping pressure down to a low working level before it reaches the directional valves and cylinders of a bench press or small stamping cell, with the 5 um element helping protect valve spools from fine contamination.
Feeding paint guns and air-assisted spray equipment in a finishing booth, where the 5 um filtration helps keep moisture carryover and fine particles out of the finish and the low-pressure regulator type matches work run at reduced supply pressure.
Conditioning and regulating air to carton-sealing and case-packing cylinders along a packaging conveyor, with the manual drain bled during routine shift checks and the psi gauge giving operators a direct reading at the machine.
Size 400 with a 3/8 in port sits mid-range in the GFR line; step up or down a size when your air demand changes, and match the choice against the published flow curves before ordering. The 5 um element (code W) suits air feeding sensitive valves or instruments, while the standard grade is 40 um. The manual drain needs periodic bleeding of collected water - choose an automatic or differential-pressure drain where the unit cannot be attended regularly. This is the low-pressure regulator type, so confirm the control band you need with us; the round gauge on this unit reads psi, and MPa or bar scales are available. The thread here is NPT, with PT as the standard option and G (BSPP) orderable, and a mounting bracket can be added if the unit will not be bolted to a machine surface.
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 curves rather than a single rated figure, so we do not quote a number. Send us your application details and we will confirm the flow and the full datasheet figures for this exact model on request.
The L in the code marks the low-pressure regulator type, and its exact control range is not published in the standard tables. Tell us the outlet pressure your process needs and we will confirm suitability on request. The maximum inlet pressure is 1.0 MPa (145 psi), and the unit operates from -5 to 70 C, non-freezing.
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.