Airtac GFR Filter Regulator GFR400C15AJC1K
The AirTAC GFR Filter Regulator GFR400C15AJC1K is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has See datasheet ports, a differential-pressure drain and regulates 0.15 - 0.9 MPa (20 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
- TypeFilter regulator
- 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 GFR Filter Regulator GFR400C15AJC1K
The GFR400C15AJC1K is an AirTAC G-series filter regulator with filtration and pressure regulation combined in one body and a drain bowl, but no lubricator. The trailing K adds a reverse (check) valve, so downstream air is not lost back through the unit when upstream supply is shut off. This 400-size unit takes a 1/2 in PT thread, includes an external round gauge reading in MPa (C1), and is supplied without a bracket (J). Drainage is automatic, the element is the standard 40 um grade, and the regulator adjusts from 0.15 to 0.9 MPa (20-130 psi) with this drain. Max inlet is 1.0 MPa (145 psi), temperature range is -5 to 70 C, and the bowl is polycarbonate (PC).
This is a genuine AirTAC part. The G-series filter regulator family covers 200, 300, 400 and 600 sizes in ports from 1/8 to 1 in, with differential-pressure, automatic or manual drains, 40 um or 5 um (W) elements, embedded square or external round gauges in MPa, psi or bar scales, optional reverse/check valve, and G (BSPP) or NPT threads alongside PT. Flow is published as curves rather than a single rating, so we confirm datasheet figures on request.
Airtac GFR Filter Regulator GFR400C15AJC1K Technical Specifications
| Model | Airtac GFR Filter Regulator GFR400C15AJC1K |
|---|---|
| Series | GFR400 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard type |
| Adjusting mechanism | Balanced 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). Air must not freeze in the unit. 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 GFR Filter Regulator GFR400C15AJC1K
| GFR400 | G-series filter regulator, 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) | Mounting bracket included. |
| (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, bracket, gauge, shape, scale, grade, thread, reflux — a blank position takes the default. Example: GFR300-08 is a 300 body, PT1/4", differential drain, standard type, bracket included, gauge fitted, 40 µm, PT thread, no reflux valve.
Size Class
- GFR200PT1/8" - PT1/4"
- GFR300PT1/4" - PT1/2"
- GFR400PT3/8" - PT1/2"
- GFR600PT3/4" - PT1"
A larger body carries a larger port and holds set pressure better as flow rises. AirTAC publishes flow only as curves, so size the body from your peak demand with headroom. The GFR600 uses an aluminium-alloy bowl; the 200, 300 and 400 bodies use PC.
| This model | GFR400 · See datasheet · 40 µm |
|---|---|
| One size down | GFR300 |
| One size up | GFR600 |
| Add lubrication | GFC400-C1 (two-unit set) |
Where the Airtac GFR Filter Regulator GFR400C15AJC1K Is Used
Multi-station fixture clamping circuit
Feeding a clamping manifold on a machining fixture, the check valve keeps the clamped side pressurised when the upstream shut-off valve is closed, while the regulator holds the clamp pressure the fixture requires.
Pneumatic torque tool drop on a fastening line
Installed at the drop feeding pulse tools and nutrunners on an assembly line, it filters supply dirt before the tool inlet, holds a stable set pressure for consistent fastening, and isolates the tool circuit from upstream swings.
Press tool safety circuit supply
Mounted on the air supply to a mechanical press's counterbalance and control air, the reverse valve prevents loss of the regulated control pressure when the main supply is dropped, supporting controlled shutdown of the press controls.
Is the Airtac GFR Filter Regulator GFR400C15AJC1K the Right Unit?
Specify this K-code version when the circuit must hold its regulated pressure downstream while the upstream supply is isolated, or where backflow toward the unit is possible. The 400 size with 1/2 in PT port suits lines already running 1/2 in piping; compare sizes on the flow curve, not the port alone. The automatic drain keeps maintenance hands-off; manual and differential-pressure drain codes exist if you prefer them, and they widen the low end of the adjust range to 0.05 MPa. The 40 um element is standard; the W code gives 5 um. The round gauge reads MPa, with psi and bar scales available; G (BSPP) and NPT threads are catalogue options, and dropping the J code adds a bracket. 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 (See datasheet here)
- ✓ Element 40 µm or 5 µm
- ✓ Drain sets the regulating band
- ✓ Gauge fitted, shape and scale
- ✓ Thread PT, G (BSPP) or NPT
- ✓ Oil needed downstream? Use GFC instead
Installation & Maintenance Notes
- check Mount vertically, bowl down, following the airflow arrow.
- check One body does the filtering and the regulating — no separate regulator needed.
- 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 Keep the unit above freezing (-5 to +70 °C, unfreeze).
The PC bowl must not be cleaned with solvents — wipe it with a dry cloth. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
Airtac GFR Filter Regulator GFR400C15AJC1K FAQ
AirTAC gives flow for the GFR400 series as curves relating pressure drop to flow, not as a single rated number, so we will not quote an invented l/min or SCFM figure. Tell us your inlet pressure and the flow your circuit needs and we will confirm the datasheet values on request before you order.
K fits a reverse (check) valve in the unit, so air cannot flow backwards through it and the regulated downstream volume holds its pressure when upstream supply is removed. Everything else matches the base GFR400C15AJC1: 1/2 in PT port, automatic drain, 40 um element, external round MPa gauge, 0.15-0.9 MPa adjust range and no bracket. Leave the K out if your circuit does not need the check function.
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Request a Quote for Airtac GFR Filter Regulator GFR400C15AJC1K
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.