The AirTAC GFR400C15MLC2TK AirTAC Filter Regulator NPT1/2 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 GFR400C15MLC2TK is an AirTAC GFR-series filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 400 configuration has a 1/2 in NPT port, a metal bowl with manual drain, a 40 um filter element, and the low-pressure regulator type. A round pressure gauge scaled in psi is fitted, a reverse (check) valve is built in, and 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 is made in sizes 200, 300, 400 and 600 covering ports from 1/8 to 1 in, with options for drain type, 5 um filtration (code W), gauge style and scale, thread, and bracket choice. AirTAC publishes flow as curves rather than a single rated figure, so we confirm flow and datasheet details for your application on request.
| Model | GFR400C15MLC2TK AirTAC Filter Regulator NPT1/2 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) |
Supplies cleaned air to clamp and fixture cylinders that hold workpieces during milling or drilling, with the regulator set to the lower holding pressure the low-pressure type is intended for and the check valve helping hold the setting if upstream supply dips.
Feeds filtered, regulated air to sealing jaws and actuated guides on a carton or bag line, keeping water and pipe-scale out of the valves while the manual drain lets an operator clear accumulated condensate at each shift check.
Conditions the air going to spray guns or air-atomizing nozzles in a paint or coating booth, removing moisture and particles that would cause fisheyes and defects while holding a steady low atomizing pressure on the psi gauge.
The decodable choices on this unit are fixed by the code: size 400 with a 1/2 in NPT port, manual drain, 40 um standard element, low-pressure regulation, a round gauge scaled in psi, and a fitted reverse (check) valve. If you need finer filtration, the W-code variant uses a 5 um element; automatic and differential-pressure drains are available on other variants, and G (BSPP) or NPT threads can be ordered where PT is the standard thread. Flow is published as curves, not a single rating, so send us your flow and pressure requirements and we will confirm sizing against the datasheet 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 G-series flow as curves rather than a single rated figure, so we do not quote a flow number for this unit. Send us your required flow and working pressure and we will confirm the datasheet figures for the size 400 GFR on request before you order.
The M in the code means the bowl is drained by hand: an operator opens the drain to release collected water and contaminants rather than relying on an automatic mechanism. It suits installations that are checked regularly; if you prefer unattended drainage, automatic or differential-pressure drain variants are available in the same family.
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.