
The AirTAC AirTAC GC400-15 FRL Unit (GC40015C3K) 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 40 µm element, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi).
The GC40015C3K is a three-unit F.R.L. combination from AirTAC's G series: a separate air filter, pressure regulator and lubricator delivering clean, regulated, oil-mist-lubricated compressed air, with a reverse/check valve fitted to block backflow through the unit. This configuration uses 1/2 in. PT ports in the size 400 body, a differential-pressure drain on the filter bowl, the standard 40 um filter element, and a round external pressure gauge with a bar scale. Maximum inlet pressure is 1.0 MPa (145 psi) and the regulator adjusts from 0.15-0.9 MPa (20-130 psi) with this drain type; operating temperature is -5 to 70 C (non-freezing). The filter and lubricator bowls are PC (polycarbonate) at size 400.
This is a genuine AirTAC part. The G series is available in sizes 200 through 600, with automatic, manual or differential-pressure drains, 40 um or 5 um filtration, square or round gauges in MPa, psi or bar scales, and G (BSPP) or NPT threads as catalogue options; the reverse valve is ordered with the K code. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet and sizing for your application on request.
| Model | AirTAC GC400-15 FRL Unit (GC40015C3K) |
|---|---|
| Series | GC400 F.R.L. combination |
| Composition | Filter + regulator + lubricator (3 units) |
| Port size | PT1/2" (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 — round, bar scale |
| Reflux valve | Fitted (reverse flow permitted) |
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. |
|---|---|
| 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)). |
| (blank) | Standard 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. |
| 3 | Gauge scale: bar. 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. |
| K | Reverse-flow (reflux) valve fitted. |
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" · 40 µm |
|---|---|
| One size down | GC300 |
| One size up | GC600 |
| Two-unit equivalent | GFC400-15 |
| Build order | Filter → regulator → lubricator |
Prepares air for the coil-feed grippers on a mechanical stamping press; the fitted check valve holds the regulated circuit against supply dips between press strokes.
Conditions air to the clamp and cutter cylinders on wire-processing machines, with the bar-scale gauge matching the European-built control panels of the equipment.
Supplies the weld-gun clamps on a robotic welding cell, keeping regulated pressure stable downstream of the check valve even during plant-wide pressure fluctuations.
Size 400 with PT1/2 ports fits lines plumbed in 1/2 in. with substantial demand; 200/300 suit lighter circuits and 600 the largest ports. The K code adds a reverse/check valve, useful when a supply-side pressure dip must not pull air back out of the regulated circuit - order the code without K if backflow is not a concern. The differential-pressure drain empties the bowl automatically; automatic (A) and manual (M) drains are alternatives. The standard 40 um element covers general plant air, with the 5 um W grade for finer filtration, and the bar-scale round gauge reads the regulated outlet in bar. PT thread is the standard; G (BSPP) and NPT are options to order. Rated flow is published as curves, not a single figure, so tell us your demand and we will confirm sizing against the datasheet before you order.
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 G-series flow as curves rather than a single rated number, so we do not quote a capacity figure here. Share your working pressure and air demand and we will confirm the flow from the datasheet on request before you order.
K means a reverse/check valve is fitted, preventing backflow out of the regulated circuit if upstream supply pressure drops. The same F.R.L. without K (GC40015C3) omits the valve; drains, filter grade, gauge scale and thread can also be re-specified when ordering.
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.