
The AirTAC GFR Filter Regulator GFR400C10MNW 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.
GFR400C10MNW is a genuine AirTAC G-series filter regulator fitted with the fine 5 um filter element (the W suffix) instead of the standard 40 um grade. Compressed air passes the element and collects in the polycarbonate drain bowl (size 400 frame), where water and finer particulate are captured and released through the manual drain; downstream pressure is set anywhere in the 0.05-0.9 MPa (7-130 psi) range with the adjustment knob. Maximum inlet pressure is 1.0 MPa (145 psi), the working temperature range is -5 to 70 C (non-freezing), and the connection is a 3/8 in PT tapered port - PT is the standard, with G (BSPP) and NPT available as catalogue options.
This configuration is ordered without a pressure gauge (N), and a mounting bracket is included. It is a genuine AirTAC part from a series offered in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in and selectable drain, filter grade, gauge, thread and check-valve options. AirTAC publishes flow capacity as curves rather than a single rated figure, so tell us your application conditions and we will confirm sizing and supply the datasheet on request.
| Model | Airtac GFR Filter Regulator GFR400C10MNW |
|---|---|
| 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 the hold-down clamps and part-present cylinders on an electronics assembly fixture, where the 5 um element gives finer protection for small, closely machined valve seats.
Supply a bank of fine air-blow nozzles that clear chips and dust from a worktable, keeping the small orifice passages shielded from finer particulate ahead of the nozzle manifold.
Regulate the actuator and switching-valve supply on laboratory analytical equipment, where a clean, stable, non-lubricated air supply at a fixed setting is part of the installation spec.
Size 400 with a 3/8 in PT port covers mid-range supply piping; drop to size 300 or step to 600 as the line's pipe diameter and air demand change. The M fixes a manual drain - the bowl is drained by hand, which suits attended equipment; choose an A-coded unit for automatic draining. The W in this code selects the 5 um element over the standard 40 um grade - the right choice when the downstream valves or nozzles need finer filtration; remember a finer element loads faster and needs more frequent draining. No gauge is fitted, but round or square gauges with MPa, psi or bar scales can be ordered. Thread is PT as standard, with G (BSPP) and NPT selectable, and the bracket is included. 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 G-series capacity as flow curves rather than a single rated number, so we do not quote a figure here. Give us your inlet pressure, port size and required downstream flow, and we will confirm sizing from the datasheet on request.
The W suffix selects the optional 5 um element, which captures finer particulate than the standard 40 um grade - useful for small valves and nozzles - while the rest of the unit is unchanged: filter and regulation in one body, manual drain, 3/8 in PT port, 0.05-0.9 MPa (7-130 psi) setting range.
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.