
The AirTAC GFR Filter Regulator GFR400C10MC1K 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.
GFR400C10MC1K is a genuine AirTAC G-series filter regulator: a 40 um filter and a pressure regulator combined in one body, with a 3/8 in PT port. The K code adds a reverse (check) valve, so downstream pressure is held against backflow upstream. This configuration has a manual drain bowl (polycarbonate on size 400), the standard embedded square pressure gauge plus an external round MPa gauge (code C1), and a regulator adjustment range of 0.05-0.9 MPa (7-130 psi).
This is a genuine AirTAC part from the G series, which runs from size 200 to 600 with ports from 1/8 to 1 in, and offers drain, filter-grade, gauge, thread (PT standard, G and NPT options) and bracket choices. AirTAC publishes flow as curves rather than a single rating, so we confirm flow and datasheet figures for your application on request.
| Model | Airtac GFR Filter Regulator GFR400C10MC1K |
|---|---|
| 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) |
Filtered, regulated air to weld-gun clamping cylinders in a robotic welding cell, with the check valve helping hold the set downstream pressure against upstream dips.
Regulated air feed for punch and forming press actuator circuits, where dry air and a stable set pressure support repeatable cylinder stroke behavior.
Conditioned air for pneumatic valves and actuated valves on a machine tool coolant circulation skid, with the manual drain emptied during maintenance rounds.
Size 400 with a 3/8 in PT port sits mid-range in the G series (sizes 200/300/400/600, ports 1/8 to 1 in); match the size to your pipework, as larger sizes carry more flow. This unit has a manual drain, so condensate is discharged by hand and the adjustment range is 0.05-0.9 MPa (7-130 psi). The 40 um element is standard; the W code gives 5 um filtration. The K code fits a reverse (check) valve - useful where you want the regulated downstream circuit held against backflow. The C1 code adds an external round MPa gauge alongside the standard embedded square gauge. Thread is PT as standard; G (BSPP) and NPT are catalogue options, and a bracket is included.
AirTAC publishes flow as curves rather than 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 flow for the G series as curves, not as a single rated figure, so no rated flow number is quoted here. Send us your operating pressure and air demand and we will confirm the flow from the datasheet for this exact model, including the effect of the check valve option, before you order.
The K code fits a reverse (check) valve in this filter regulator, so air flows one way through the unit and the downstream, regulated side is held against backflow when upstream supply is interrupted. The rest of the decode is unchanged: 3/8 in PT port, manual drain, 40 um element, MPa gauges, standard pressure type.
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.