AirTAC GFR400-15 Filter Regulator (GFR40015LF1W)
The AirTAC AirTAC GFR400-15 Filter Regulator (GFR40015LF1W) 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 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.
- TypeFilter regulator
- Port sizePT1/2"
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade5 µm
- DrainDifferential-pressure drain
- Bowl materialPC
- Pressure gaugeFitted
- 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 (GFR40015LF1W)
GFR40015LF1W is an AirTAC G-series filter regulator: one body that removes water and particulate from the compressed air line and sets downstream pressure. This 400-size configuration carries a 1/2 in PT port, the low-pressure (L) regulator type, a differential-pressure drain bowl with the finer 5 um element, and the embedded square gauge scaled in MPa, with a mounting bracket included.
It is a genuine AirTAC part. The GFR series spans 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, PT, G (BSPP) or NPT threads, selectable element grade, drain type and gauge. Flow is published as curves rather than a single rating, so we confirm datasheet and sizing figures on request.
AirTAC GFR400-15 Filter Regulator (GFR40015LF1W) Technical Specifications
| Model | AirTAC GFR400-15 Filter Regulator (GFR40015LF1W) |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT1/2" (PT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Differential-pressure drain |
| Bowl material | PC |
| Pressure gauge | Fitted — square, MPa 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. 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 (GFR40015LF1W)
| 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". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 1 | Gauge scale: MPa. 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 (GFR40015LF1W) Is Used
CNC tool-holder purge circuits
Supplies cleaned low-pressure regulated air to spindle taper purge and door-assist circuits on a CNC machining centre, with the 5 um element guarding the small metering orifices.
Electronics assembly pneumatic ejectors
Conditions air for the low-pressure eject and transfer cups on an SMT feeder bench, where fine filtration keeps nozzle seats free of particulate.
Calibration stand air supply
Feeds a maintenance calibration stand that exercises low-pressure pneumatic transmitters and switches, holding a stable setpoint with a clean, dry supply.
Is the AirTAC GFR400-15 Filter Regulator (GFR40015LF1W) the Right Unit?
The 400 size fits lines whose demand sits above a 300-size unit; 3/8 in and 3/4 in port variants exist for pipework matching. The W suffix selects the finer 5 um element over the 40 um standard, for circuits feeding sensitive downstream valves and tools. The low-pressure (L) type caps set pressure at 0.4 MPa for circuits that run below standard line pressure. Drain is differential-pressure as standard, with automatic (A) or manual (M) selectable; the F1 code gives the embedded square MPa gauge. PT is the standard thread, with G (BSPP) and NPT as order options, and a bracket is included.
Flow for this series is published as curves, not one rated figure, so ask us to confirm sizing against your application 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 0.15 - 0.9 MPa (20 - 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 (GFR40015LF1W) FAQ
AirTAC publishes flow for the G series as characteristic curves rather than a single rated figure, so there is no honest single number to quote. Send us your line pressure and demand and we will confirm sizing from the datasheet on request.
PT is the standard thread on this code and is what you get as ordered. G (BSPP) and NPT versions of the same 400-size unit exist as catalogue options, so match your existing pipework when specifying.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for AirTAC GFR400-15 Filter Regulator (GFR40015LF1W)
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.