The AirTAC AirTAC GC400-15G F.R.L. Unit, G1/2, Low-Pressure Type is a genuine G-series three-unit F.R.L. combination: a separate filter, a separate regulator and a separate lubricator assembled as one air-preparation station. It has PT1/2" ports, a 5 µm element, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi).
The AirTAC GC400 series is a three-piece F.R.L. combination: a separate air filter, pressure regulator and oil-mist lubricator assembled as one air-preparation set. This GC400-15G is built on the size 400 body with a G1/2 (BSPP) port. It is the low-pressure regulator type, fitted with a 5 um filter element (code W), a differential-pressure drain on the filter bowl, a round pressure gauge scaled in psi, and a mounting bracket. The bowls are polycarbonate (PC) and no reverse/check valve is fitted.
This is a genuine AirTAC part. The GC series is offered in sizes 200, 300, 400 and 600, with port sizes from 1/8 to 1 inch, a choice of differential-pressure, automatic or manual drain, 40 um standard or 5 um (W) filtration, gauge scales in MPa, psi or bar, and PT, G or NPT thread. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | AirTAC GC400-15G F.R.L. Unit, G1/2, Low-Pressure Type |
|---|---|
| Series | GC400 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | PT1/2" (G (BSPP) thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure 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 — round, 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. The combination has no separate bracket code — the three units couple together with their own mounting hardware. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GC400 | G-series F.R.L. combination, 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) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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, gauge, shape, scale, grade, thread, reflux — there is no bracket position on a combination. Constituent units, orderable separately as spares: GF400-15 filter, GR400-15 regulator and GL400-15 lubricator.
A GC is three separate units, so the filter and the regulator can each be serviced or replaced on their own. A GFC is the two-unit set, where filtering and regulating share one body — shorter, but the two functions come as one part. Both filter, regulate and lubricate.
| This model | GC400 · PT1/2" · 5 µm |
|---|---|
| One size down | GC300 |
| One size up | GC600 |
| Two-unit equivalent | GFC400-15 |
| Build order | Filter → regulator → lubricator |
Feeding filtered, regulated and lubricated air to the wrapper, case sealer and cylinder-driven clamp units on a carton packaging line, with the 5 um element protecting downstream valves from fine dust.
Conditioning the air that drives stopper, pusher and lift cylinders along a bottling or sorting conveyor, with the regulator holding the line's set pressure and the lubricator metering oil mist to the actuators.
Serving a pneumatic tool drop at an assembly or maintenance bench, where the filter removes water and chips, the regulator keeps a steady set pressure and the lubricator keeps impact wrenches and riveters oiled.
Size 400 with a G1/2 port suits lines that draw a substantial air volume; step up or down through sizes 200-600 as demand changes. Because flow is published only as curves, not a single rated figure, ask us to confirm sizing against your application before ordering. The 5 um element (code W) gives finer particulate removal than the 40 um standard grade. Drain is differential-pressure here; automatic (A) and manual (M) drains are available in the same family. The round gauge is scaled in psi; the embedded square gauge and MPa or bar scales are the other catalogue options. Thread is G (BSPP) as decoded; PT is the standard thread and NPT is an order option. The low-pressure type (code L) is the variant for lower working pressures; its exact adjustment range is not published, so confirm it with us before ordering.
Quick checklist
The PC bowls must not be cleaned with solvents — wipe them with a dry cloth. The lubricator adds an oil mist downstream of the regulator. If any branch of the line must stay oil-free, take that branch off before the lubricator, or use a GR400-15 regulator with a GF400-15 filter on that branch.
AirTAC publishes flow for the GC series as curves rather than a single rated figure, so we do not quote one number here. Send us your application details and we will confirm the flow and sizing from the datasheet before you order.
The W in this code specifies the 5 um element, which removes finer particulate than the 40 um standard grade. The GC family is also available with the standard 40 um element if your line does not need the finer filtration.
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.