The AirTAC GFR400C15MC2WT AirTAC Filter Regulator NPT 1/2 in 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 GFR400C15MC2WT is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady, in one body. This size 400 unit is threaded NPT 1/2 in, carries the 5 um filter element (code W instead of the 40 um standard), drains by hand through its manual drain, and is fitted with a round pressure gauge reading in psi. The regulator adjusts from 0.05 to 0.9 MPa (7-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), and the polycarbonate bowl suits non-freezing air from -5 to 70 C.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, and options that include automatic or differential-pressure drains, the 40 um standard element, embedded square or external round gauges in MPa, psi or bar scales, G or NPT threads in place of the PT standard, and a check valve. Flow for this unit is published as curves rather than a single rating, so ask us to confirm the figures from the datasheet for your application.
| Model | GFR400C15MC2WT AirTAC Filter Regulator NPT 1/2 in |
|---|---|
| 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 air to carton-forming and case-packing cylinders: the 5 um element keeps wear particles and condensed water out of the machine's valves while the regulator holds the pressure the machine builder specified, with the psi gauge giving operators a local reference.
Supplying regulated air to stop-gate and pusher cylinders on a bottling conveyor; the 1/2 in NPT port matches the main drop, and the manual drain suits a station that is checked at shift start.
Conditioning the pilot-air supply to a pneumatic press directional valves: filtration ahead of the regulator protects the valves and gauge, and the regulator sets the pilot pressure the circuit was designed around.
Choose GFR when one body must both filter and regulate. Stepping up to this size 400 with a 1/2 in port is the move when your line needs the larger flow path; because flow is published as curves and not a single rating, send us your supply pressure and air demand and we will confirm the sizing against the datasheet before you order. This configuration is already set for the 5 um element and a manual drain - if the unit will not be checked daily, the automatic-drain or differential-pressure-drain versions are the usual alternative, and the 40 um standard element is available where finer filtration is not required. Remaining choices are the gauge scale (MPa, psi or bar), the thread (PT is the standard; G and NPT are order options) and the included mounting 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.
AirTAC publishes flow for the GFR series as curves rather than a single rated figure, so we do not quote one number. Tell us your supply pressure and the flow your application needs, and we will confirm against the datasheet whether this size 400 unit with its 1/2 in port is the right step before you order.
The M in the code sets a manual drain: someone opens the bowl drain to release collected water. If the unit will sit where it is not checked daily, the automatic-drain or differential-pressure-drain versions of the same GFR400 filter regulator are the better choice - tell us and we will identify the equivalent code.
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.