
The AirTAC GFR Filter Regulator GFR400C15MJF1W 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.
GFR400C15MJF1W is an AirTAC GFR400 filter regulator: filtration and pressure regulation in one body, ordered with the fine 5 um filter element (W suffix) instead of the standard 40 um grade. This configuration also carries a manual drain, an embedded square pressure gauge with MPa scale, and no mounting bracket. The port is PT1/2 (1/2 in PT thread, the standard for this code) and the bowl is polycarbonate (PC) at size 400. Regulator setting range with the manual drain is 0.05-0.9 MPa (7-130 psi); maximum working pressure is 1.0 MPa (145 psi) and operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family covers sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, G (BSPP) and NPT thread options, a choice of differential-pressure, automatic or manual drains, and 40 um or 5 um elements. Flow is published as curves rather than a single rating, so we confirm the datasheet and sizing on request.
| Model | Airtac GFR Filter Regulator GFR400C15MJF1W |
|---|---|
| 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) |
Feeds pneumatic valves and actuated accessories on lab and pilot-plant equipment, where the 5 um element protects sensitive components from fine particulate.
Supplies bench tools and pick-and-place assist cylinders at electronics workstations, with finer filtration suited to clean, dry air at the point of use.
Conditions the air driving filling-valve actuators and clamp cylinders on a filling machine, combining steady regulated pressure with fine particle removal.
Choose the W suffix when the downstream equipment needs finer particle control than the standard 40 um element provides; note that a finer grade loads up faster, so the drain routine matters more. Size 400 with a 1/2 in PT port serves medium-to-high demand - verify the size against the published flow curve for your duty point. The manual drain widens the setting range to 0.05-0.9 MPa (7-130 psi), versus 0.15-0.9 MPa (20-130 psi) on automatic or differential-drain versions. Square or round gauges are available in MPa, psi or bar scales; G (BSPP) and NPT threads and a bracket are catalogue options, and the K suffix adds a check valve if needed. Flow is published as curves, not a single rating, so ask us to confirm sizing 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 G-series flow as curves rather than a single rated figure, so no flow number is stated here. Give us your pressure and demand and we will confirm the datasheet sizing on request, including any effect of the finer element on your duty point.
W (5 um) is for point-of-use protection of finer components such as instrument valves, spray equipment or precision actuators. The blank standard is 40 um for general plant air. Both grades are orderable across the whole GFR range by adding or omitting the W suffix.
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.