The AirTAC GFR600-25 AirTAC Filter Regulator 1 in NPT, 5 um 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 automatic 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 size-600 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is built for a 1 in NPT port, uses the low-pressure regulator type, and carries the fine 5 um filter element (code W) for applications that need cleaner air than the standard 40 um grade. The automatic drain expels collected condensate without manual attention, and the aluminium alloy bowl suits the larger size-600 body. A round external gauge with a psi scale is fitted, a reverse/check valve is included, and this unit is ordered without a mounting bracket.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options for drain type, filter grade, gauge style and scale, thread form and bracket. Flow is published as curves rather than a single rated figure, so contact us and we will confirm the datasheet figures for your application on request.
| Model | GFR600-25 AirTAC Filter Regulator 1 in NPT, 5 um |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure 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 | Automatic drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — round, 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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". |
| A | Drain: Automatic drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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. |
| T | NPT 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) |
On a beverage bottling line, the 1 in port feeds a low-pressure circuit that drives stopper and pusher cylinders along the conveyor, while the 5 um element keeps moisture and debris out of the valve stack and the automatic drain handles condensate through long production shifts.
In a weaving shed, a size-600 filter regulator at the head of the ring main conditions the air serving loom air jets and clamping devices: the low-pressure regulator type suits circuits running well below full line pressure, and the round psi gauge gives operators a direct local reading.
On a chemical pilot plant skid, instrument and actuator air drawn from the plant ring main passes through the 5 um element to protect positioners and solenoid valves, with the reverse/check valve holding upstream pressure if supply dips and the automatic drain keeping the aluminium bowl clear.
Size and port set the capacity envelope: this unit steps up to size 600 with a 1 in port, the largest in the GFR range, so match it to your line's pipe size and expected air demand. Because flow is published as curves and not a single rating, ask us to confirm sizing against your application before ordering. Drain type is a real choice: automatic (fitted here) drains condensate on its own, while manual and differential-pressure versions suit other service routines. Filter grade is 40 um standard or 5 um with code W, which this unit carries. Gauge options are the embedded square gauge or an external round gauge, scaled in MPa, psi or bar - this unit has a round psi gauge. Thread is PT as standard, with G (BSPP) and NPT as order options; this one is NPT. A reverse/check valve (code K) can be specified, and a mounting bracket is optional (code J omits it).
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 rather than a single rated figure, so we do not quote a rated flow number. Send us your application details and we will confirm the relevant datasheet flow figures on request before you order.
The A in the code specifies the automatic drain, which expels collected condensate without operator attention - useful on lines that run unattended. The GFR family is also available with a manual drain or the differential-pressure drain as the default; the regulator adjustment range differs by drain type, so tell us your service routine and we will confirm the right version.
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.