
The AirTAC Airtac GC FRL Unit GC400C15NWK 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 See datasheet ports, a 40 µm element, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi).
The GC400C15NWK is a genuine AirTAC three-piece F.R.L. combination - separate air filter, pressure regulator and oil-mist lubricator - for 1/2 inch PT ports, combining the W option (finer 5 um filter element instead of the standard 40 um) with the K option (reverse/check valve fitted). The filter bowl uses the default differential-pressure drain and no pressure gauge is included (N). Downstream pressure is adjustable from 0.15-0.9 MPa (20-130 psi).
This is a genuine AirTAC part in the G series size 400 range, offered in sizes 200, 300, 400 and 600 with a choice of ports, threads, drains, filter grades, gauge options and the check valve option. Maximum working pressure is 1.0 MPa (145 psi), service temperature is -5 to 70 C (non-freezing), and the bowls on this size are PC (polycarbonate). Flow is published as curves rather than a single rated figure, so we will confirm datasheet flow and sizing figures on request.
| Model | Airtac GC FRL Unit GC400C15NWK |
|---|---|
| Series | GC400 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard 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 — factory standard, Factory standard 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. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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. |
|---|---|
| C1 | Port size See datasheet. 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)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Pressure gauge fitted (blank). |
| (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, gauge, shape, scale, grade, thread, reflux — there is no bracket position on a combination. Constituent units, orderable separately as spares: GF400-C1 filter, GR400-C1 regulator and GL400-C1 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 · See datasheet · 40 µm |
|---|---|
| One size down | GC300 |
| One size up | GC600 |
| Two-unit equivalent | GFC400-C1 |
| Build order | Filter → regulator → lubricator |
Supplying a skid of pneumatically actuated process valves, the set delivers finely filtered, regulated, lubricated air while the check valve helps hold the actuator circuit if the plant air header is shut down.
Feeding pneumatic circuits behind machine guarding and interlocks, it keeps the supply clean and regulated and, with the check valve fitted, supports holding downstream pressure where supply interruption must not vent the circuit.
Installed as the prep set at a maintenance shop's air station, it conditions air for hand tools, torque equipment and test rigs, with the 5 um element protecting small pilot valves and the check valve guarding against backflow.
The 400 size with 1/2 inch PT port fits mid-to-large air lines; move to 600 or 300 where the circuit demand calls for a different step. This configuration pairs the finer 5 um element (W) with the reverse/check valve (K) - the right choice where a circuit needs both finer filtration and protection against downstream air escaping if supply is lost. Drain type is the differential-pressure default, with automatic (A) and manual (M) orderable. Thread is PT as standard, with G (BSPP) and NPT as catalogue options, and no gauge is fitted (N) though gauge variants exist. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application 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-C1 regulator with a GF400-C1 filter on that branch.
Yes - on request. AirTAC publishes flow for this series as performance curves rather than a single rated figure, so we do not quote a rated number here. Send us your application details and we will confirm the datasheet flow figures and check the sizing.
Only by the K option: this unit has a reverse (check) valve fitted so downstream air is held if the upstream supply drops. The 5 um filter element, differential-pressure drain, regulator range, 1/2 inch PT ports and gauge-free configuration are identical to the GC400C15NW.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.