
The AirTAC GFR Filter Regulator GFR400C10MJF1WK 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.
GFR400C10MJF1WK is an AirTAC G-series filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure at your setpoint. This 400-size unit is drilled for PT 3/8 in ports, carries the finer 5 um filter element (W code), and has a manual drain on the PC (polycarbonate) bowl. It is supplied without a mounting bracket (J code), the embedded square gauge reads in MPa, and the K code adds a reverse (check) valve. With the manual drain, the regulator adjustment range is 0.05-0.9 MPa (7-130 psi); maximum working pressure is 1.0 MPa (145 psi).
This is a genuine AirTAC part from the 200/300/400/600 G-series range. Elsewhere in the series you can order G (BSPP) or NPT threads and automatic or differential-pressure drains. The temperature range is -5 to 70 C, non-freezing. Flow for this series is published as curves rather than a single rating, so ask us to confirm the datasheet figure for your application.
| Model | Airtac GFR Filter Regulator GFR400C10MJF1WK |
|---|---|
| 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) |
Conditions air for the small actuators and sample-handling cylinders on a laboratory automation bench, with the 5 um element protecting compact valves from finer debris.
Feeds filtered, regulated atomizing air to spray nozzles in a finishing booth, with the check valve isolating the nozzle circuit from supply-side fluctuations.
Prepares the supply for vacuum ejectors and gripper cylinders on a pick-and-place cell, holding a stable setpoint through repeated fast cycles.
Size 400 with a 3/8 in port sits above the 300/1/4 in step and below 600/1/2 in - choose the step from the flow your line needs, not the pipe size alone. The W code gives the 5 um element for finer filtration, and the K code fits a reverse (check) valve for circuits you want isolated from supply-side dropouts. The manual drain suits an attended station bled on a schedule; automatic and differential-pressure drain codes exist for hard-to-reach mounts. The square MPa gauge is built in, thread can be ordered as G (BSPP) or NPT rather than PT, and the J code means you supply your own bracket. 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 G series as curves, not as a single rated number, so we do not quote one figure. Send us your required flow and working pressure and we will confirm the datasheet curve for this 400-size, 3/8 in unit against your application before you order.
The W code fits a 5 um element instead of the standard 40 um grade, and the K code adds a reverse (check) valve. Together they give finer filtration plus a checked downstream side on the same 400-size body with PT 3/8 in ports, manual drain, square MPa gauge and no bracket. Drop either code if you do not need that feature.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.