AirTAC GFC400-15 Combination Unit (GFC40015AC1K)
The AirTAC AirTAC GFC400-15 Combination Unit (GFC40015AC1K) 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 automatic 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
- DrainAutomatic 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 (GFC40015AC1K)
GFC40015AC1K is an AirTAC G-series two-unit air-preparation set for a 1/2 in PT line: a 400-size filter regulator paired with a matching lubricator, so one set removes water and particulate, holds a set working pressure and meters oil mist into the air stream. The A code sets an automatic drain on the polycarbonate filter bowl, the standard 40 um element is fitted, C1 specifies the external round gauge with an MPa scale, and the trailing K marks a reverse (check) valve fitted in the set, which blocks back-flow from the downstream line toward the unit. Regulating range with automatic drain is 0.15-0.9 MPa (20-130 psi), maximum inlet pressure is 1.0 MPa (145 psi), operating temperature -5 to 70 C.
This is a genuine AirTAC part. The G series runs from 200 to 600 size, with differential-pressure, automatic or manual draining, 40 um standard or 5 um (W) filtration, MPa, psi or bar gauge scales, and PT as the standard thread with G (BSPP) and NPT as order options. Flow is published as curves rather than a single rating, so we confirm the datasheet figures and sizing on request.
AirTAC GFC400-15 Combination Unit (GFC40015AC1K) Technical Specifications
| Model | AirTAC GFC400-15 Combination Unit (GFC40015AC1K) |
|---|---|
| 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 | Automatic drain |
| Bowl material | PC |
| Pressure gauge | Fitted — round, MPa 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 (GFC40015AC1K)
| 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". |
| A | Drain: Automatic 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. |
| 1 | Gauge scale: MPa. 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 (GFC40015AC1K) Is Used
Bottling line conveyor actuators
Runs the pusher and stopper cylinders along a bottle conveyor; the fitted check valve in this K code keeps downstream pressure from bleeding back when the upstream supply is isolated.
Assembly shop impact-tool drops
Serves a 1/2 in drop feeding impact wrenches and nut runners at an assembly bay, delivering filtered, regulated, lubricated air to the tools.
Actuated valve panel
Air prep for the actuator supply on a bank of pneumatically actuated process valves, with the check valve holding the actuator circuit against back-flow from the line side.
Is the AirTAC GFC400-15 Combination Unit (GFC40015AC1K) the Right Set?
This 400 size carries a 1/2 in port: step to 200 or 300 for smaller ports or to 600 for larger mains, matched to the flow curve of your demand. Draining is automatic (A); manual and differential-pressure drains are alternatives, and a manual drain widens the regulating range to 0.05-0.9 MPa (7-130 psi) from 0.15-0.9 MPa (20-130 psi). The element is the standard 40 um; gauge scales are MPa, psi or bar, with the embedded square gauge as an alternative to this external round gauge. Thread is PT as standard, with G (BSPP) and NPT to order. The K option adds the reverse (check) valve; order without K where back-flow is not a concern. AirTAC publishes flow as curves, not one rated figure, so ask us to confirm sizing 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 (GFC40015AC1K) FAQ
AirTAC publishes G-series performance as flow curves rather than a single rated figure, so no one number is quoted here. Send us your line pressure and air demand and we will confirm the flow and datasheet figures for this 1/2 in two-unit set on request.
It marks a reverse (check) valve fitted in the set, which blocks back-flow from the downstream line toward the unit when upstream pressure is lost or the supply is isolated. The identical set is available without K as GFC40015AC1 where that is not needed.
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Related AirTAC Air-Preparation Units
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