AirTAC GFR400-10 Filter Regulator (GFR40010LN)
The AirTAC AirTAC GFR400-10 Filter Regulator (GFR40010LN) 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 PT3/8" 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 sizePT3/8"
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainDifferential-pressure 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 GFR400-10 Filter Regulator (GFR40010LN)
GFR40010LN is a genuine AirTAC GFR400 filter regulator with the 40 um standard element and pressure regulation in one body, drained by the differential-pressure bowl. The L suffix marks it as the low-pressure regulator type, suited to circuits where the set pressure remains well below full line pressure. The N suffix means no gauge is fitted, while the bracket position is blank, so the mounting bracket is included. The port is PT3/8, maximum inlet pressure is 1.0 MPa (145 psi), and the unit operates from -5 to 70 C.
AirTAC offers the G series in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in; G (BSPP) and NPT thread versions are catalogue options ordered by suffix. Flow for the series is published as characteristic curves, not a single rated figure, so we confirm the datasheet and flow numbers for your duty on request.
AirTAC GFR400-10 Filter Regulator (GFR40010LN) Technical Specifications
| Model | AirTAC GFR400-10 Filter Regulator (GFR40010LN) |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (PT thread) |
| Filtering grade | 40 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 | 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 GFR400-10 Filter Regulator (GFR40010LN)
| GFR400 | G-series filter regulator, 400 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". 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. |
| 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. |
| (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.
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 · PT3/8" · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Where the AirTAC GFR400-10 Filter Regulator (GFR40010LN) Is Used
Workbench air drops
A maintenance bench fed from the shop main gets clean, reduced-pressure air for air guns, small impact tools and test rigs; the included bracket lets this unit be mounted right at the drop regulator position.
Machine-mounted control section
On machines where the conditioning unit sits on the frame beside the valve stack, the bracket fixes the GFR400 in place and the 3/8 in port matches the branch feeding the machine's control valves.
Conveyor gate and stopper actuators
Sorting conveyors use pneumatic gates, stops and pushers that run at gentle pressures; this unit filters the 3/8 in branch to the standard 40 um grade and holds the low setting those actuators need.
Is the AirTAC GFR400-10 Filter Regulator (GFR40010LN) the Right Unit?
This is the size 400, 3/8 in low-pressure filter regulator with the standard 40 um element and the bracket fitted - the straightforward choice when the unit will be wall- or machine-mounted next to the air drop. Move to a W code if 5 um filtration is needed, or to an N-code-with-gauge variant if the setting must be read at the unit. The differential-pressure drain is built into this code; dedicated automatic (A) and manual (M) drain codes exist for other maintenance patterns. Thread is PT as standard, with G (BSPP) and NPT available as order suffixes. As AirTAC publishes flow only as curves, ask us to confirm sizing against the datasheet - including the adjustment range of the low-pressure L type - before you order.
Quick checklist
- ✓ Body size for your peak flow (PT3/8" 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 GFR400-10 Filter Regulator (GFR40010LN) FAQ
AirTAC does not publish a single rated flow number for the G series - flow is given as characteristic curves only. Tell us your supply pressure and air demand and we will confirm the flow from the datasheet on request.
This code carries the PT standard thread on its 3/8 in port. G (BSPP) and NPT versions exist as separate catalogue suffixes you can order, so choose the thread family that matches your fittings when placing the order.
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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 GFR400-10 Filter Regulator (GFR40010LN)
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.