The AirTAC GFR600-25 AirTAC Filter Regulator PT1 with 5 um Filter is a genuine G-series filter regulator: water separation, 5 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1" 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 AirTAC GFR600-25 is a filter regulator: one body that removes water and particulate from compressed air and then regulates downstream pressure. This size-600 configuration is specified with a 1 inch PT port, 5 um filtration (the W grade, finer than the 40 um standard element), a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and an aluminium alloy bowl, which is the material used at size 600. A square pressure gauge scaled in psi is fitted, a reverse/check valve is included to hold downstream pressure, and a mounting bracket is supplied. The standard regulator adjusts from 0.15 to 0.9 MPa (20-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the unit operates from -5 to 70 C in non-freezing conditions.
This is a genuine AirTAC part. The GFR series is published in sizes 200, 300, 400 and 600, with port options from 1/8 inch up to 1 inch, a choice of drain type, 40 um or 5 um filtration, gauge style and scale, PT, G or NPT thread, and bracket options. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR600-25 AirTAC Filter Regulator PT1 with 5 um Filter |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (PT thread) |
| Filtering grade | 5 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 | Aluminium alloy |
| Pressure gauge | Fitted — square, psi 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). 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.
| GFR600 | G-series filter regulator, 600 body — sets the port range. |
|---|---|
| 25 | Port size PT1". This body offers 20 = PT3/4", 25 = PT1". |
| (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). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| W | Filtering grade 5 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, 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 | GFR600 · PT1" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
Installed at the drop feeding a machining centre's pneumatic circuits, it delivers clean, regulated air to tool clamps and actuators, with the check valve holding settings against supply dips.
Mounted on the supply leg of a packaging conveyor's cylinder bank, it strips water and fine particles before regulation so diverters and clamp cylinders cycle on stable, conditioned air.
Placed ahead of spray guns in a finishing booth, the 5 um element removes water and particulate that would otherwise mar the finish, while the regulator holds a steady gun supply pressure.
Step through the decodable choices in order. Size 600 with a 1 inch port sits at the top of the GFR range, so match it against the flow your line actually needs - flow is published as curves, not a single rating, so ask us to confirm sizing before ordering. Drain type: this unit uses the differential-pressure drain (the default); automatic (A) and manual (M) versions exist if your duty suits them. Filter grade: this is the 5 um W element; the 40 um standard element is the alternative if finer filtration is not required. Gauge: a square gauge scaled in psi is fitted here; an external round gauge and MPa or bar scales are the other options. Thread: PT is the standard on this code, with G (BSPP) and NPT available as order options. A bracket is included, and the K code confirms a reverse/check valve is fitted.
Quick checklist
The aluminium-alloy bowl on the GFR600 suits harsher environments than a PC bowl. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR series as curves, not as a single rated number, so there is no one figure we can quote honestly. Tell us your operating pressure and the flow your application needs, and we will confirm against the datasheet curves on request before you order.
The W in the code selects the optional 5 um element, finer than the 40 um standard, for applications that need cleaner air. The drain is the differential-pressure type: it discharges collected condensate automatically as air flows through, with no manual draining required in normal operation.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 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.