The AirTAC GFR400C10MC2K AirTAC Filter Regulator 3/8" PT Manual Drain 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 GFR400C10MC2K is a size-400 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is decodes with a 3/8 in PT port, a manual drain bowl, the standard 40 um filter element, a round external gauge reading in psi, a fitted reverse (check) valve, and the mounting bracket included. The manual drain lets an operator vent accumulated condensate by hand, and the standard regulator covers an adjustment range of 0.05-0.9 MPa (7-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi). Operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part from the GFR filter-regulator family, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, a choice of manual, automatic or differential-pressure drains, an optional 5 um element (code W), square (embedded) or round (external) gauges in MPa, psi or bar scales, and PT, G or NPT threads. Flow figures for this family are published as curves rather than a single rating, so ask us to confirm the datasheet numbers for your application before ordering.
| Model | GFR400C10MC2K AirTAC Filter Regulator 3/8" PT Manual Drain |
|---|---|
| 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) |
Installed at the air drop feeding a CNC machining cell, the unit cleans condensed water and swarf-laden particulate from the shop main and holds a steady regulated pressure to the cell's valves and actuators, with the psi gauge giving the operator a direct readout at the machine.
Mounted on the supply line to a packaging conveyor's pneumatic pushers and clamps, the filter regulator protects the cylinders from water carryover and keeps setting pressure stable through shift-long cycling, while the reverse valve holds the downstream circuit against supply-side backflow.
Fitted ahead of a directional-valve manifold on an automated assembly station, the unit delivers filtered, regulated air to the solenoid valves, with the manual drain allowing condensate to be vented during scheduled changeovers and the included bracket securing the unit to the panel.
Size 400 with a 3/8 in PT port sits in the upper-middle of the GFR range: step up to size 600 (1/2 in to 1 in ports) for larger lines, or down to size 200/300 for compact circuits - match the size to the flow your line needs. The manual drain on this unit suits installations where an operator is present to vent the bowl; choose automatic or differential-pressure drain codes where the unit runs unattended. The standard 40 um element is the usual choice for general plant air; specify the 5 um W-code variant where finer filtration matters. The round psi gauge is fitted as coded; square embedded gauges and MPa or bar scales are alternatives. PT is the standard thread, with G (BSPP) and NPT available as order options, and the bracket is included.
Because flow for G-series units is published as curves rather than a single rated figure, we do not quote a flow number here. Send us your application details and we will confirm the datasheet curve and sizing before you order.
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 family as curves rather than a single rated figure, so we do not state a flow number here. Tell us your inlet pressure and the flow your application needs, and we will confirm the datasheet curve for the GFR400 size and check the sizing with you before you order.
The M in the code is the manual drain: accumulated condensate is vented from the bowl by hand, which suits attended installations on a maintenance routine. The C2 is the gauge code - a round external gauge fitted with a psi scale (MPa and bar scales and an embedded square gauge are the alternatives). The K at the end confirms a reverse (check) valve is fitted.
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.