
The AirTAC GFR Filter Regulator GFR400C15MJC1W 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 GFR series removes water and particulate from compressed air and regulates pressure in a single body. The GFR400C15MJC1W is the 400 size with a PT1/2 port, a manual drain bowl, the W-coded 5 um element (finer than the standard 40 um grade), an external round pressure gauge on an MPa scale, and no mounting bracket (J code). Maximum inlet pressure is 1.0 MPa (145 psi), the manual-drain regulation range is 0.05-0.9 MPa (7-130 psi), and the polycarbonate bowl is rated -5 to 70 C, non-freezing.
This is a genuine AirTAC part. Within the G series you can select sizes 200 to 600, ports from 1/8 to 1 inch, automatic, manual or differential-pressure drains, 40 um or 5 um elements, embedded square or external round gauges in MPa, psi or bar, G (BSPP) or NPT threads, and bracket options, as well as single-function and combined units. Flow is published as curves rather than a single rating, so we confirm the numbers you need from the datasheet on request.
| Model | Airtac GFR Filter Regulator GFR400C15MJC1W |
|---|---|
| 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) |
Feed a bank of pick-and-place gripper modules on an electronics assembly line, where the 5 um element helps keep fine particulate away from the small pilot valves that switch each head.
Regulate the pilot air to pneumatically actuated process valves on a water-treatment skid, holding one clean, stable pilot pressure while the manual drain is bled on the maintenance round.
Serve the regulated drops at a maintenance workshop bench, giving technicians a set tool pressure at the 1/2 inch header while the 5 um element trims scale carried from the plant ring main.
Step to the 400 size for 1/2 inch porting or when the 300 body would run at the top of its flow curve - ask us to confirm the curve against your duty. The W code is the point of this configuration: the 5 um element protects fine pilot valves, gripper circuits and instrumentation where 40 um filtration is not tight enough. Manual drain suits an attended line and allows the widest regulation range, 0.05-0.9 MPa (7-130 psi), versus 0.15-0.9 MPa (20-130 psi) with automatic or differential drains. The external round gauge reads in MPa (psi and bar available), thread is PT as standard with G (BSPP) and NPT to order, and this code omits the bracket.
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.
There is no single rated figure to quote: AirTAC publishes flow for the G series as curves. Tell us your application pressure and air demand and we will confirm the sizing from the datasheet on request before you order.
Choose the W-coded 5 um element for circuits with fine pilot valves, precision actuators or instrumentation that tolerate less particulate. The standard 40 um grade is enough for general machine air prep. Both run in the same bowl and body, so the choice is a code-level option, not a different series.
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.