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 filter regulator: one body that removes water and particulate from compressed air and holds the downstream pressure at your set point. This is the size 600 unit with a 1 in NPT port, the 5 um element (code W) for finer filtration than the standard 40 um grade, an automatic drain that expels collected condensate without manual attention, and the low-pressure type regulator (code L) for applications set below standard ranges. It is fitted with an external round gauge reading in bar, a reverse/check valve (code K), and a mounting bracket is included. Maximum working (inlet) pressure is 1.0 MPa (145 psi); operating temperature is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family runs from size 200 to 600 with port sizes from 1/8 in to 1 in, in PT (standard), G and NPT threads, with a choice of drain type, filter grade, gauge style and scale, and standard or low-pressure regulation. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| 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, bar 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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 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) |
Feeds filtered, regulated air to the sealing and clamp cylinders on a bagging or wrapping line, with the 5 um element protecting valve seats from particulate and the automatic drain keeping condensate out of the circuit.
Supplies the air knives and ejector jets that clear containers and guide bottles along a filling line, holding a steady set point while the automatic drain handles moisture carried in from the ring main.
Conditions the shop-air feed to laboratory dryers, sterilisers and bench equipment that need cleaner, finely regulated air, with the 5 um grade and bar-reading round gauge suiting instruments set in metric units.
Size 600 with a 1 in port is the largest step in the GFR range; step down to 400, 300 or 200 (down to 1/8 in) when your line flow is smaller. This unit is the low-pressure type (L), so confirm your set point suits a low-pressure regulator - we will confirm the exact adjustment range from the datasheet on request. The 5 um element (W) suits air that needs finer cleaning than the standard 40 um grade; both grades are available across the family. Drain choice matters: automatic (as here) empties the bowl unattended, while manual and differential-pressure options exist. The round gauge reads in bar; embedded square gauges and MPa or psi scales are alternatives. Thread is NPT here; PT is the standard and G is also a catalogue option. Flow is published as curves, not a single rated figure, so ask us to confirm sizing against your application before ordering.
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 GFR flow as curves rather than a single rated figure, so we do not quote a number here. Tell us your line flow and pressure and we will confirm the sizing from the datasheet on request before you order.
The L code makes this a low-pressure regulator rather than the standard type, intended for set points below the standard range. The exact adjustment range for the low-pressure type is not published in the summary sheet, so ask us to confirm it from the datasheet. Everything else on this unit decodes normally: 1 in NPT port, 5 um element, automatic drain, round bar gauge, reverse/check valve fitted, bracket included.
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.