The AirTAC GFR40010LF2WG AirTAC Filter Regulator G3/8 5um 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 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.
The GFR40010LF2WG is an AirTAC GFR400 filter regulator: a 400-size unit that removes water and particulate from compressed air and regulates pressure downstream in the same body. This configuration carries a G3/8 (BSPP) port, a 5 um filter element (the W grade, finer than the 40 um standard), a differential-pressure drain, the low-pressure regulator type and an embedded square gauge reading in psi. A mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
It is a genuine AirTAC part. The GFR400 series is one of four sizes (200, 300, 400, 600) with port options from 1/8 to 1 inch, G, NPT or PT threads, manual, automatic or differential-pressure drains, 40 um or 5 um elements and MPa, psi or bar gauge scales. AirTAC publishes flow for this series as curves rather than a single rated figure, so we confirm sizing and datasheet figures on request.
| Model | GFR40010LF2WG AirTAC Filter Regulator G3/8 5um |
|---|---|
| Series | GFR400 filter regulator |
| Port size | PT3/8" (G (BSPP) 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, psi 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.
| 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. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) 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 · PT3/8" · 5 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-10 (two-unit set) |
Filtered, low-pressure regulated air holds pneumatic clamps on machining fixtures steady through the cycle, with the 5 um element keeping water and particulate away from the clamp valves.
One body filters the shop air and holds a steady reduced pressure to sealing and forming actuators, with the psi gauge giving operators a local setpoint reference at the machine.
The low-pressure regulator type suits spray guns and atomising air that must run below typical line pressure, while the 5 um element keeps water and particulate out of the finish.
Size the unit by port and expected demand: the 400 size sits mid-range with a 3/8 in port; step up to 600 or down to 300/200 if your line needs more or less capacity. This unit carries the 5 um element (code W); choose the 40 um standard grade where coarser filtration is sufficient. The drain here is differential-pressure, with automatic (A) or manual (M) versions available if you prefer. The square gauge is fitted with a psi scale, and MPa or bar scales can be ordered. Thread is G (BSPP) as coded; PT is the standard thread and NPT is an order option. A mounting bracket is included. Flow for the GFR400 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 series as curves rather than a single rated figure, so we do not quote a number here. Ask us to confirm sizing and we will read the datasheet curve for your inlet pressure and porting before you order.
It marks the low-pressure regulator type. AirTAC does not publish a single adjustment figure for this variant in the standard tables, so we confirm the exact setting range from the datasheet on request before you order.
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.