
The AirTAC GFR Filter Regulator GFR400C15C1 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 GFR400C15C1 is a genuine AirTAC G-series filter regulator: filtration and pressure regulation combined in one body, with a drain bowl and no lubricator stage. This 400-size unit carries a PT1/2 port, the series-default differential-pressure drain, standard 40 um filtration and an external round pressure gauge reading in MPa. Maximum inlet pressure is 1.0 MPa (145 psi), the regulating range with this drain type is 0.15-0.9 MPa (20-130 psi), and the working temperature range is -5 to 70 C. The bowl on 400-size units is polycarbonate.
AirTAC builds the G series in 200, 300, 400 and 600 sizes, with G(BSPP) and NPT thread options, automatic or manual drains, a 5 um filter grade (W) and a reverse/check valve (K) as catalogue choices. We confirm flow and full datasheet figures on request, because AirTAC publishes flow as curves rather than a single rating.
| Model | Airtac GFR Filter Regulator GFR400C15C1 |
|---|---|
| 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) |
Feeds the clamp and unclamp cylinders and air-blast nozzles on a CNC machining center, with filtered, regulated air set once at the machine's drop.
Supplies pneumatic swing clamps and hold-downs on an automotive welding fixture, holding fixture pressure steady across the line.
Runs gripper and pusher cylinders on a palletizer, where the 1/2-inch porting matches the machine's main air drop.
Step up to 400 size when the circuit's air demand outgrows a 300-size unit; this model is ported PT1/2. Drain choices across the family are differential-pressure (this unit), automatic (A) or manual (M) - note that with a manual drain the regulating range is 0.05-0.9 MPa (7-130 psi). Filtration is 40 um standard, with 5 um (W) for finer downstream protection, and the round gauge here reads MPa; psi (scale 2) and bar (scale 3) gauges are orderable. PT is the standard thread, with G(BSPP) and NPT as catalogue options, and a mounting bracket is included. Flow is published as curves, not one rated figure, so 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 G-series flow as curves rather than a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the flow curve and full datasheet figures for this model on request.
This unit uses the series-default differential-pressure drain on its polycarbonate bowl. AirTAC also lists automatic (A) and manual (M) drains for GFR units - with a manual drain the regulating range is 0.05-0.9 MPa (7-130 psi) instead of 0.15-0.9 MPa (20-130 psi). Order the suffix that matches your maintenance routine.
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.