AirTAC GFC400-15 Combination Unit (GFC40015C3K)
The AirTAC AirTAC GFC400-15 Combination Unit (GFC40015C3K) is a genuine G-series two-unit air-preparation set: a filter regulator that filters and regulates in one body, coupled to a lubricator. Two bodies do the work of three, with PT1/2" ports, a 40 µm element, a differential-pressure drain and regulation over 0.15 - 0.9 MPa (20 - 130 psi).
- TypeTwo-unit set (F.R. + L.)
- Port sizePT1/2"
- Regulating range0.15 - 0.9 MPa (20 - 130 psi)
- Filtering grade40 µm
- DrainDifferential-pressure drain
- Bowl materialPC
- Pressure gaugeFitted
- 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 GFC400-15 Combination Unit (GFC40015C3K)
GFC40015C3K is an AirTAC G-series two-unit air treatment set: a filter regulator and a lubricator paired as one 2-piece combination. This size 400 unit has 1/2 in PT ports, a 40 um filter element and a differential-pressure drain on the filter bowl. The regulator adjusts from 0.15-0.9 MPa (20-130 psi) and the external round gauge reads in bar. A fitted reverse (check) valve holds downstream pressure when the upstream supply is shut off. Bowls on the 400 size are PC (polycarbonate); maximum working pressure is 1.0 MPa (145 psi) and operating temperature is -5 to 70 C, non-freezing. The medium is compressed air only.
This is a genuine AirTAC part. The G series runs from size 200 to 600 with ports from 1/8 to 1 in, plus catalogue options for drain type (differential-pressure, automatic or manual), 40 um or 5 um filtration, gauge style and scale, and G (BSPP) or NPT threads. Flow for the series is published as curves rather than a single rating, so we confirm the datasheet figures for your application on request.
AirTAC GFC400-15 Combination Unit (GFC40015C3K) Technical Specifications
| Model | AirTAC GFC400-15 Combination Unit (GFC40015C3K) |
|---|---|
| Series | GFC400 two-unit set |
| Composition | Filter regulator + lubricator (2 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 set has no separate bracket code — the two 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.
Model Code: AirTAC GFC400-15 Combination Unit (GFC40015C3K)
| GFC400 | G-series two-unit set, 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 set. Constituent units, orderable separately as spares: GFR400-15 filter regulator and GL400-15 lubricator.
Size Class & How It Differs From GC
- GFC200PT1/8" - PT1/4"
- GFC300PT1/4" - PT1/2"
- GFC400PT3/8" - PT1/2"
- GFC600PT3/4" - PT1"
A GFC is two units because filtering and regulating share one body. A GC is three separate units — filter, regulator and lubricator. Both filter, regulate and lubricate; the GFC is the shorter assembly, the GC keeps the filter and regulator serviceable as separate bodies.
| This model | GFC400 · PT1/2" · 40 µm |
|---|---|
| One size down | GFC300 |
| One size up | GFC600 |
| Three-unit equivalent | GC400-15 |
| Build order | Filter regulator first, lubricator last |
Where the AirTAC GFC400-15 Combination Unit (GFC40015C3K) Is Used
Stamping press clamp circuits
Feeds filtered, regulated and lubricated air to the pneumatic clamp cylinders around a press cell. The fitted check valve holds downstream pressure if the main supply is isolated mid-cycle.
Bottling line fill-and-cap actuators
Supplies the valve and actuator banks on a filling and capping machine from one treatment point, with the lubricator metering oil mist to the cylinders.
Parcel sortation diverters
Runs the divert and pusher cylinders on a sortation conveyor, keeping water and particulate out of the valves that switch the diverters.
Is the AirTAC GFC400-15 Combination Unit (GFC40015C3K) the Right Set?
Size 400 with PT1/2 ports sits in the upper half of the G range (sizes 200 to 600, ports 1/8 to 1 in) - step up or down a size if your line's porting and demand differ. Drain type is a real choice on the filter bowl: differential-pressure (this unit, the default), automatic (code A) or manual (code M). Filtration is 40 um standard; choose 5 um (code W) for finer cleaning. Gauge: this unit carries the external round gauge with a bar scale; the embedded square gauge in MPa, psi or bar scales is also available. Thread is PT as standard, with G (BSPP) and NPT as catalogue options. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
Quick checklist
- ✓ Body size for your peak flow (PT1/2" here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Two-unit (GFC) or three-unit (GC) layout
- ✓ Oil mist acceptable downstream
Installation & Maintenance Notes
- check Install with the airflow arrow: filter regulator first, lubricator last.
- check Mount vertically, bowls down.
- 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 the oil level.
- check Keep the set above freezing (-5 to +70 °C, unfreeze).
The PC bowls must not be cleaned with solvents — wipe them with a dry cloth. The lubricator adds an oil mist downstream, so if any branch must stay oil-free, take that branch off before the lubricator or use a GFR400-15 filter regulator on its own.
AirTAC GFC400-15 Combination Unit (GFC40015C3K) FAQ
AirTAC publishes G-series flow as curves, not a single rated figure, so we do not quote a number here. Send us your line pressure and air demand and we will confirm the flow and full datasheet for this model on request before you order.
K means a reverse (check) valve is fitted, so downstream pressure is held if the upstream supply is cut. Without K the unit has no check valve. It is independent of the drain type, filter grade and gauge choices in the rest of the code.
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Related AirTAC Air-Preparation Units
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