Airtac GFC Combination Unit GFC400C15AC1K
The AirTAC Airtac GFC Combination Unit GFC400C15AC1K 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 See datasheet 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 sizeSee datasheet
- 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 GFC Combination Unit GFC400C15AC1K
The GFC family is a two-piece air treatment set: a filter-regulator in one body plus a separate lubricator, so the compressed air is filtered and regulated in the first stage and receives oil mist for downstream tools and cylinders from the second. This GFC400C15AC1K is the 400 size with PT1/2 ports on standard PT thread, an automatic drain on the filter bowl, the standard 40 um filter element, an external round pressure gauge on an MPa scale, and a reverse-flow check valve fitted (the K suffix). Maximum working pressure is 1.0 MPa (145 psi) and the regulator on this automatic-drain version adjusts from 0.15 to 0.9 MPa (20-130 psi).
It is a genuine AirTAC part, available across four sizes (200/300/400/600) with ports from 1/8 to 1 inch and G (BSPP) or NPT thread options. On the 400 size both bowls are polycarbonate, and operating temperature is -5 to 70 C (non-freezing). Flow data is published as curves rather than a single rating, so ask us to confirm figures from the datasheet for your application.
Airtac GFC Combination Unit GFC400C15AC1K Technical Specifications
| Model | Airtac GFC Combination Unit GFC400C15AC1K |
|---|---|
| Series | GFC400 two-unit set |
| Composition | Filter regulator + lubricator (2 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 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 GFC Combination Unit GFC400C15AC1K
| GFC400 | G-series two-unit set, 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 set. Constituent units, orderable separately as spares: GFR400-C1 filter regulator and GL400-C1 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFC300 |
| One size up | GFC600 |
| Three-unit equivalent | GC400-C1 |
| Build order | Filter regulator first, lubricator last |
Where the Airtac GFC Combination Unit GFC400C15AC1K Is Used
Weld-cell clamp air supply
Filtering, regulating and lubricating the air feeding weld-gun clamps and positioners on a robotic weld cell, where the fitted check valve and 1/2 in ports suit the cell's main air drop.
Palletiser gripper circuits
Conditioning the air for vacuum generators and gripper cylinders on a palletising line, keeping particulate and water out of the valves while the lubricator mists the cycling actuators.
Trailer dock leveller controls
Treating the supply air for dock leveller and restraint actuators at a loading bay, with regulation holding a set working pressure for the leveller's pneumatic control circuit.
Is the Airtac GFC Combination Unit GFC400C15AC1K the Right Set?
Size 400 is a mid-to-large step in the G series: choose it when demand through 1/2 in ports is beyond what the 300 size passes comfortably, and step to 600 for higher flow. This version carries the K suffix, meaning a reverse/check valve is fitted; the same set is available without it by dropping the K. The drain here is automatic; differential-pressure is the default and manual drain (M) is also offered, with the manual-drain regulator range at 0.05-0.9 MPa versus 0.15-0.9 MPa on this version. Filter grade is the standard 40 um (W gives 5 um), the round MPa gauge can be had in psi or bar scales, and PT is the standard thread with G and NPT as orderable options.
Flow is published as curves, not a single rated figure, so please ask us to confirm sizing against your application before ordering.
Quick checklist
- ✓ Body size for your peak flow (See datasheet 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-C1 filter regulator on its own.
Airtac GFC Combination Unit GFC400C15AC1K FAQ
AirTAC publishes G-series flow as curves across the pressure range rather than a single rated figure, so we do not quote one number here. Send us your operating pressure and air demand and we will confirm the correct sizing from the datasheet before you order.
The K means a reverse/check valve is fitted on this version; the same set is available without it as GFC400C15AC1. Everything else in the decode is identical: 400 size, PT1/2 ports, automatic drain, 40 um element and the round MPa gauge.
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