The AirTAC GFR400-10MLJC2TK 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 PT3/8" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR400-10MLJC2TK is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 400 unit is fitted with 3/8 in NPT ports, a manual drain bowl, a 40 um filter element and a low-pressure regulator, so it suits circuits that run at reduced set pressures. The round gauge is scaled in psi for direct local reading, and the built-in reverse (check) valve holds the downstream setting if upstream supply is interrupted. No mounting bracket is included in this configuration.
This is a genuine AirTAC part from the GFR series, which spans sizes 200 to 600 with port sizes from 1/8 in to 1 in. Across the series you can order automatic, manual or differential-pressure drains, a 5 um element (code W) instead of the 40 um standard, square or round gauges with MPa, psi or bar scales, G or NPT threads in place of the PT standard, and brackets where needed. Flow figures are published as curves rather than a single rating, so ask us to confirm sizing against your application before ordering.
| Model | GFR400-10MLJC2TK AirTAC Filter Regulator NPT3/8 |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Low-pressure 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, psi scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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. |
|---|---|
| 10 | Port size PT3/8". This body offers 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Feeding clamp and hold-down cylinders on an assembly fixture: the 40 um element keeps grit out of the valve stack, the low-pressure regulator sets a reduced clamping force, and the check valve holds the set pressure through supply dips.
Supplying air to diverters, sealers and pusher cylinders on a packaging line, where the manual-drain bowl is emptied during scheduled changeovers and the psi gauge lets operators verify line pressure at a glance.
Regulating atomizing air on a spray or coating station that runs below normal line pressure: the low-pressure regulator type gives finer control in the reduced range while the filter stage protects the gun from water and debris.
Start with the port step: size 400 with 3/8 in NPT ports sits mid-range in the GFR line, so step up or down a size if your line volume demands it - and let us check the flow curve against your consumption, since AirTAC publishes flow as curves rather than one rated number. Choose the drain to match maintenance habits: this unit has a manual drain, which needs periodic bowl draining, while automatic and differential-pressure drains are available on other codes. The 40 um element is the standard grade; order the W variant for 5 um filtration. The round gauge here reads in psi; MPa and bar scales and an embedded square gauge are alternatives. NPT is the thread on this code (PT is the series standard, G is also orderable), and this configuration omits the mounting bracket.
Quick checklist
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. The reflux valve permits reverse flow 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 line pressure and air consumption and we will confirm the sizing from the datasheet before you order.
The M in the code specifies a manual drain bowl, which you empty periodically as part of routine maintenance. If you prefer unattended operation, GFR codes with automatic (A) or differential-pressure (blank) drains are available in the same size - ask us for the matching model.
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.