
The AirTAC GFR Filter Regulator GFR400C15AJC1 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.
The GFR400C15AJC1 is an AirTAC G-series filter regulator: filtration and pressure regulation combined in a single body with a drain bowl, but no lubricator. This 400-size unit takes a 1/2 in PT thread, includes an external round pressure gauge reading in MPa (the C1 in the code), and is supplied without a mounting bracket (J). Drainage is automatic, so collected condensate is expelled without manual intervention, and the element is the standard 40 um grade. Regulation range is 0.15-0.9 MPa (20-130 psi) with this automatic drain, the unit accepts up to 1.0 MPa (145 psi) inlet, and the working temperature range is -5 to 70 C, non-freezing. The bowl on this 400 size is polycarbonate (PC).
This is a genuine AirTAC part. The G-series filter regulator family spans 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 (K), and G (BSPP) or NPT thread options alongside the PT standard. Flow figures are published as curves rather than a single rating, so we confirm datasheet values on request.
| Model | Airtac GFR Filter Regulator GFR400C15AJC1 |
|---|---|
| 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.
| 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.
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) |
Installed ahead of a directional control valve manifold on an automated assembly cell, it filters line dirt and holds a steady set pressure to the solenoid valves and their actuators, with the automatic drain clearing condensate between shifts.
Mounted at the air drop feeding a carton-former's cylinders and vacuum ejectors, the 40 um element stops rust and pipe scale reaching the seals while the regulator holds the pressure the machine designer specified.
Feeding gate diverters, pushers and stop cylinders on a bottling conveyor, it keeps downstream pressure stable as banks of cylinders fire in sequence, and the round MPa gauge lets technicians verify setpoint at a glance.
Use the 400 size with the 1/2 in port when your line feeding the unit already runs 1/2 in piping; step up to the 600 size or down to the 300 size based on the flow curve for your application rather than on port size alone. Automatic drain (A) suits unmanned or hard-to-reach installations; choose manual or differential-pressure drain codes if you prefer a drain valve operated on inspection rounds. Stay on the standard 40 um element for general actuator and valve protection, or specify the W code for 5 um. The included round gauge reads in MPa; psi (scale 2) and bar (scale 3) are available. PT is the standard thread, with G (BSPP) and NPT as catalogue options, and a bracket can be added by dropping the J code. Because flow is published as curves and not a single rated figure, ask us to confirm sizing against your application before ordering.
Quick checklist
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 publishes flow for the GFR400 series as performance curves, not as a single rated figure, so there is no one l/min or SCFM number we can quote honestly. Send us your operating pressure and required flow and we will confirm the figures from the datasheet on request before you order.
The A in the code is an automatic drain: condensate collecting in the PC bowl is discharged on its own, which suits unmanned or hard-to-access positions. The alternatives are manual drain (you open the drain valve at inspection) and the default differential-pressure drain. Changing the drain code changes the regulator adjust range: automatic and differential-pressure drains give 0.15-0.9 MPa, while the manual-drain versions extend the low end to 0.05 MPa.
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.