The AirTAC GFR400C15MLF1TK AirTAC Filter Regulator NPT1/2 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 GFR400C15MLF1TK is an AirTAC GFR400 filter regulator: one body that first removes water and particulate from compressed air, then regulates its pressure downstream. This configuration is built for 1/2 in NPT ports, carries the standard 40 um filter element, and releases collected condensate by hand through its manual drain. It is the low-pressure regulator type, has an embedded square pressure gauge scaled in MPa, and a reverse (check) valve is fitted. The bowl on this size 400 body is polycarbonate, the maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -5 to 70 C (non-freezing). Mounting bracket included.
This is a genuine AirTAC part. The GFR family is offered in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, in PT (standard), G and NPT threads, with manual, automatic or differential-pressure drains, 40 um or 5 um (W) filtration, and a choice of gauge styles and scales. AirTAC publishes flow for this series as curves rather than a single rated figure, so ask us and we will confirm the flow and datasheet figures for your application on request.
| Model | GFR400C15MLF1TK AirTAC Filter Regulator NPT1/2 |
|---|---|
| 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 air prep for a bottling plant's gripper and clamp actuators: the 40 um element strips water and scale from header air before the low-pressure regulator sets a gentle working pressure on the 1/2 in drop to the machine.
Feeds the low-pressure clamping circuit of a CNC machining cell, where the manual drain lets the operator clear condensate at shift start and the embedded square MPa gauge gives a direct setpoint readout at the machine.
Sits ahead of the diverter and stopper cylinders on a distribution conveyor, filtering header air and holding a stable low-pressure setting so sorting gates cycle predictably, with the fitted check valve protecting the downstream circuit.
Size and port step up together across the GFR range: 200, 300, 400 and 600 bodies take ports from 1/8 in up to 1 in, so choose the size whose flow curve covers your demand - we can check that against the datasheet before you order. The real decodable choices on this family are: drain type (manual, automatic, or the differential-pressure default), filter grade (40 um standard, 5 um with code W), gauge (embedded square as standard, external round optional, in MPa, psi or bar scales), thread (PT is the standard; G and NPT are catalogue options to order) and bracket (code J deletes it). This unit is the low-pressure type (L); its exact setpoint range is not published in the material we hold, so confirm it with us on request. Flow is published as curves, not a single rating - 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 GFR series as curves, not as a single rated number, so we do not quote a figure here. Send us your line pressure, port size and downstream demand and we will confirm the flow from the datasheet on request before you order.
This unit uses a manual drain: condensate collected in the polycarbonate bowl is released by hand. Choose it where the unit is checked as part of a regular routine. If the installation runs unattended, the automatic (A) or differential-pressure (default) drain is the decodable alternative within the same GFR400 series.
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.