AirTAC GFR400-15 Filter Regulator (GFR40015MLJNW)
The AirTAC AirTAC GFR400-15 Filter Regulator (GFR40015MLJNW) is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1/2" ports, a manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
- TypeFilter regulator
- Port sizePT1/2"
- Regulating range0.05 - 0.9 MPa (7 - 130 psi)
- Filtering grade5 µm
- DrainManual drain
- Bowl materialPC
- Pressure gaugeNot fitted
- ThreadPT
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the AirTAC GFR400-15 Filter Regulator (GFR40015MLJNW)
GFR40015MLJNW is an AirTAC G-series filter regulator in the 400 size with a PT1/2 port, pairing water and particle filtration with downstream pressure regulation in one body. The W suffix selects the finer 5 um filter element over the standard 40 um grade, and the N suffix means no pressure gauge is fitted. This unit also carries a manual drain bowl, the low-pressure regulator type and no mounting bracket. The polycarbonate bowl suits compressed air from -5 to 70 C (non-freezing), with 1.0 MPa (145 psi) maximum inlet pressure; as the low-pressure type its regulated output is limited to 0.4 MPa, and we confirm the exact adjustment span on request.
This is a genuine AirTAC part. The G-series filter-regulator line is offered in 200, 300, 400 and 600 sizes with drain-type, filter-grade, gauge, thread (G, NPT or standard PT) and bracket options. Since flow appears only as curves, we confirm sizing and all datasheet figures on request.
AirTAC GFR400-15 Filter Regulator (GFR40015MLJNW) Technical Specifications
| Model | AirTAC GFR400-15 Filter Regulator (GFR40015MLJNW) |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (PT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Low-pressure 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 | Manual drain |
| Bowl material | PC |
| Pressure gauge | Not fitted |
| 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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.
Model Code: AirTAC GFR400-15 Filter Regulator (GFR40015MLJNW)
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 10 = PT3/8", 15 = PT1/2". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| N | No pressure gauge (N). |
| (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. |
| W | Filtering grade 5 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.
Size Class
- GFR200PT1/8" - PT1/4"
- GFR300PT1/4" - PT1/2"
- GFR400PT3/8" - PT1/2"
- GFR600PT3/4" - PT1"
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 · PT1/2" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-15 (two-unit set) |
Where the AirTAC GFR400-15 Filter Regulator (GFR40015MLJNW) Is Used
Control-valve positioner instrument air
Feeding filtered, low-pressure regulated air to positioners and pilot devices on a process skid, where the 5 um element and the absence of a gauge suit a panel that displays pressure elsewhere.
Robot end-of-arm gripper supply
Conditioning and regulating air to gripper circuits on a robotic assembly cell, with the low-pressure type holding delicate part-handling pressures and the manual drain bled at planned maintenance windows.
Maintenance-shop test rig feed
Supplying clean, controlled air to a workshop bench rig used to function-test cylinders and valves, where the 5 um element protects the components under test and shop gauges provide the indication.
Is the AirTAC GFR400-15 Filter Regulator (GFR40015MLJNW) the Right Unit?
The 400 size with its PT1/2 port is the step to take when half-inch piping or the position on the flow curve demands it; compare the 300 and 600 bodies before locking in. Two decode choices define this variant: W gives the 5 um element for cleaner downstream air than the standard 40 um grade, and N omits the gauge for panels with their own instrumentation. The manual drain (M) needs a scheduled bleed, so weigh automatic and differential-pressure options for unattended spots. Thread is PT as standard with G(BSPP) and NPT available to order, and the J code excludes the mounting bracket.
Filter-regulator flow is published as curves rather than a single rated number, so ask us to check this 5 um, gaugeless unit against your air demand and set pressure before ordering.
Quick checklist
- ✓ Body size for your peak flow (PT1/2" here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Oil needed downstream? Use GFC instead
Installation & Maintenance Notes
- check Mount vertically, bowl down, following the airflow arrow.
- check One body does the filtering and the regulating — no separate regulator needed.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Adjust only within 0.05 - 0.9 MPa (7 - 130 psi).
- check Drain condensate before the bowl fills.
- check Keep the unit above freezing (-5 to +70 °C, unfreeze).
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 GFR400-15 Filter Regulator (GFR40015MLJNW) FAQ
There is no single rated flow figure to quote: AirTAC publishes the GFR400 series' flow as curves that depend on inlet pressure and setpoint. Send us your line conditions and consumption requirement, and we will confirm from the datasheet whether this 1/2 in unit is the right size.
Two matter most: W selects the 5 um filter element instead of the standard 40 um grade, and N means no pressure gauge is fitted. You should also confirm the manual drain suits your maintenance routine - automatic and differential-pressure variants exist - and note the thread is standard PT, with G(BSPP) and NPT orderable.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Request a Quote for AirTAC GFR400-15 Filter Regulator (GFR40015MLJNW)
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.