The AirTAC GFR400C15MLJC1WTK 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 AirTAC GFR400C15MLJC1WTK is a filter regulator: water and particulate removal plus pressure regulation combined in a single body, so one unit and one connection do both jobs. This size 400 configuration is built around a 1/2 in NPT port, with a fine 5 um filter element (code W) for cleaner downstream air, a manual drain for controlled bowl blow-down, and a low-pressure regulator type. A round pressure gauge with MPa scale is fitted for direct setting and monitoring, and a reverse (check) valve is included. Supplied without a mounting bracket. Maximum working (inlet) pressure is 1.0 MPa (145 psi); operating temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR filter-regulator family spans sizes 200, 300, 400 and 600, with port options, drain types (differential-pressure, automatic or manual), 40 um standard or 5 um fine filtration, gauge styles and scales, and PT, G or NPT threads to order. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR400C15MLJC1WTK 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) |
On a paint or coating booth air supply, the 5 um element keeps overspray-critical air free of water and particulate while the low-pressure regulator holds a gentle, stable setting at the gun manifold, with the MPa gauge in view for shift checks.
Feeding the air cylinders that drive diverters, pushers and clamp gates on a packaging conveyor, this unit filters the shop air to 5 um and regulates it in one body, with the manual drain emptied during scheduled line cleaning.
On a lab test bench or pilot rig running sensitive pneumatic instruments, the fine 5 um grade protects regulators and transducers downstream, the low-pressure regulator trims supply gently, and the check valve helps hold the circuit against backflow.
Start with the port step: this unit is size 400 with a 1/2 in NPT port, the right tier when your line runs larger-bore air mains; smaller duties can step down to sizes 200 or 300, heavier flows to size 600. Filtration choice is 40 um standard or 5 um fine (this unit carries the 5 um W element) - pick fine grades where downstream valves, cylinders or instruments need cleaner air. Drain type matters: manual drain (as fitted here) gives deliberate, controlled blow-down and suits attended installations; automatic or differential-pressure drains suit unattended duty. The regulator in this unit is the low-pressure type; the exact regulation range for the low-pressure variant is not published, so confirm it with us against your set pressure. Gauge scale is MPa here, with psi and bar available. PT is the standard thread; G (BSPP) and NPT are catalogue options to order. A bracket can be added if this no-bracket version needs panel fixing. 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 this family as performance curves, not as a single rated figure, so we do not quote a l/min, m3/h or SCFM number. Tell us your application and we will confirm the flow data from the datasheet and check the sizing against your required flow before you order.
The M in the code specifies a manual drain: collected water is released by opening the drain by hand, typically during scheduled checks. It suits attended installations where someone is on site regularly. If the unit will run unattended, ask us about the automatic or differential-pressure drain variants of the same GFR400 size.
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.