The AirTAC GFR400C10MJC2K AirTAC Filter Regulator PT3/8, 40 um 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 GFR400C10MJC2K is a size 400 filter regulator: it removes water and particulate from compressed air through a 40 um element and regulates downstream pressure in one body. This configuration carries a PT3/8 port, a manual drain for emptying the bowl, a round pressure gauge reading in psi, and a built-in reverse (check) valve that holds the downstream setting if upstream supply is interrupted. Maximum inlet pressure is 1.0 MPa (145 psi), the regulating range with manual drain is 0.05-0.9 MPa (7-130 psi), and the operating temperature is -5 to 70 C (non-freezing). The polycarbonate bowl suits this size class; no mounting bracket is included with the J suffix.
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 each size can be ordered with automatic, manual or differential-pressure draining, a 5 um element (code W), gauge style and scale, G or NPT threads, and bracket options. Flow figures for this series are published as curves rather than a single rating, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR400C10MJC2K AirTAC Filter Regulator PT3/8, 40 um |
|---|---|
| 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) |
Feeding filtered, pressure-set air to clamping cylinders on a machining fixture, where the check valve holds the set pressure if the main supply drops and the psi gauge lets operators verify the clamp setting at a glance.
Conditioning air for diverters, pushers and sealing cylinders on a packaging conveyor, with the 40 um element protecting valve spools from water and debris and the manual drain emptied during line cleaning.
Serving as the point-of-use filter regulator ahead of a solenoid valve manifold on an automated assembly cell, delivering regulated air at the pressure the manifold was specified for while the check valve guards the downstream circuit.
Start with the port step: size 400 covers 3/8 inch lines, and the GFR range steps from 1/8 to 1 inch across sizes 200 to 600, so match the size to the air demand of the circuit rather than upsizing blindly. Drain choice matters in practice: manual draining (this unit) needs an operator to bleed the bowl, while automatic and differential-pressure drains evacuate condensate without attention - choose manual where bowl inspection is part of a routine. The 40 um element is the standard grade; specify 5 um (code W) where finer particulate removal is required downstream. This unit is ordered with a round gauge on a psi scale; square embedded gauges and MPa or bar scales are the other catalogue options. Thread is PT as standard, with G (BSPP) and NPT available to order, and the J suffix means no mounting bracket is fitted. Because flow for this series is published as curves and not a single rated figure, send us your application details and we will confirm sizing against the datasheet before you order.
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 performance curves rather than a single rated figure, so we do not quote a rated flow number for this unit. Send us your line pressure, port size and air demand and we will confirm the flow and sizing against the datasheet on request before you order.
The M in the code specifies a manual drain: condensate collected in the bowl is emptied by operating the drain by hand, which suits installations where the bowl is checked as part of a routine. The K code adds a reverse (check) valve, which holds the regulated downstream pressure if the upstream supply is interrupted. If you prefer hands-off condensate removal, the same size is available with automatic or differential-pressure draining.
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.