The AirTAC GFR400C15MLJF1T AirTAC Filter Regulator 1/2 NPT 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 GFR400C15MLJF1T is an AirTAC GFR400 filter regulator: water and particulate are removed from compressed air and downstream pressure is set, all in one body. This size 400 unit carries a 1/2 in NPT port, a manual drain for periodic bowl emptying, the standard 40 um filter element, and an embedded square gauge scaled in MPa. The regulator is the low-pressure type, and no mounting bracket or reverse/check valve is fitted.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options for drain type, 5 um filtration (code W), gauge scale and G/NPT thread. Flow is published as curves rather than a single rating, so ask us to confirm figures from the datasheet for your application.
| Model | GFR400C15MLJF1T AirTAC Filter Regulator 1/2 NPT |
|---|---|
| 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) |
Feeds filtered, regulated air to the clamp and vacuum-assist cylinders of a palletizer, with the low-pressure regulator holding gentle gripping pressure and the manual drain cleared during shift maintenance.
Prepares the atomizing air supply at a spray booth, removing water and particulate before the low-pressure regulator sets the lower delivery pressure the spray equipment needs.
Supplies clean, regulated air to quarter-turn actuator manifolds on a process skid, with the 1/2 in NPT port matching the actuator supply line and the MPa gauge giving a local setpoint readout.
Start with the port step: this unit is size 400 with a 1/2 in NPT port; smaller and larger GFR sizes cover 1/8 in to 1 in, so match the size to the air demand of the circuit. Choose the drain next: this configuration is manual drain, meaning the bowl must be emptied by hand at intervals; automatic and differential-pressure drain versions are available in the same family if you prefer hands-off condensate removal. The 40 um element is standard here; specify code W for 5 um filtration where finer particulate removal is needed. The fitted square gauge reads in MPa, with psi and bar scales and an external round gauge available as options. Thread is NPT on this unit; PT is the standard catalogue thread and G (BSPP) is also an order option. A mounting bracket can be added on bracket versions. Flow is published as curves, not 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 GFR400 as curves rather than a single rated figure, so we do not quote a number here. Tell us your line pressure, downstream setpoint and air demand, and we will confirm the flow figures from the datasheet for your application on request.
The M in the code specifies a manual drain: condensate collects in the bowl and is emptied by hand at intervals, which suits installations that are checked routinely. If you want condensate removed without attention, the same GFR400 family is available with automatic drain (code A) or differential-pressure drain (blank) instead.
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.