The AirTAC GFR400C15MLC2K AirTAC Filter Regulator PT1/2 Low-Pressure 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 GFR400C15MLC2K is a filter regulator: it removes water and particulate from compressed air and holds a regulated downstream pressure in one body. This size 400 unit carries a 1/2 in PT threaded port, a polycarbonate bowl with manual drain, a 40 um standard filter element, the low-pressure regulator type, a reverse/check valve, and an external round gauge scaled in psi; a mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port options from 1/8 to 1 in, plus drain, filter-grade, gauge, thread and bracket choices, so a matching unit can be configured for most lines. Because flow is published as curves rather than a single rated figure, we confirm the datasheet and sizing figures on request.
| Model | GFR400C15MLC2K AirTAC Filter Regulator PT1/2 Low-Pressure |
|---|---|
| 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) |
Point-of-use conditioning for palletiser gripper circuits: the filter section strips water and pipe-scale from shop air, and the low-pressure regulator holds the reduced setting the gripper valves were set up for.
Feeding clamp cylinders on a CNC fixture line: clean, regulated air keeps clamp force consistent part to part, the manual drain lets maintenance empty the bowl at shift checks, and the psi gauge gives operators a readable setpoint.
Supplying stop gates and diverter cylinders along a packaging conveyor: the 40 um element protects the directional valves from dirt and condensed water, while the regulator sets the lower pressure these actuators need.
Choose the size and port against the air demand of the machine: size 400 with a 1/2 in PT port sits in the upper mid-range of the GFR line (sizes 200/300/400/600, ports 1/8 to 1 in). Drain type is a real choice: manual (this unit, code M) is emptied by hand on a schedule you set, automatic drains itself, and the differential-pressure default drains on a pressure drop. Filter grade is the 40 um standard here; specify code W for the 5 um element where finer filtration is needed. The regulator is the low-pressure type, so confirm its exact adjustment range with us before ordering, as it is not published in the standard table. The gauge is the external round type scaled in psi (embedded square gauge and MPa or bar scales are the alternatives), a reverse/check valve is fitted, and PT is the standard thread with G and NPT available to order. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application 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 series as curves, not as a single rated number, so we do not quote a figure here. Send us your line pressure, downstream air demand and allowable pressure drop, and we will confirm the sizing from the datasheet on request.
Manual drain (code M) means the bowl is emptied by hand on a routine you set, instead of draining itself like the automatic or differential-pressure options. The L code makes this the low-pressure regulator type; its exact adjustment range is not published in the standard table, so confirm it with us against your set pressure before ordering.
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.