The AirTAC GFR600-25 AirTAC Filter Regulator NPT1 5um Low-Pressure 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 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: it removes water and particulate from compressed air and holds downstream pressure at your setpoint in a single body. This 600-size configuration has a 1 in NPT port, the 5 um filtration element (code W) instead of the standard 40 um, a manual drain on the bowl, and the low-pressure regulator type. The bowl on size 600 is aluminium alloy. It includes the embedded square gauge scaled in bar and a mounting bracket; no reverse (check) valve is fitted. Rated inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 to 1 in, a choice of PT (standard), G (BSPP) or NPT thread, differential-pressure, automatic or manual drains, 40 um or 5 um elements, gauge scales in MPa, psi or bar, and standard or low-pressure regulator types. Flow is published as curves rather than a single rating, so ask us to confirm sizing figures from the datasheet for your application before ordering.
| Model | GFR600-25 AirTAC Filter Regulator NPT1 5um Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — square, bar 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. 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure 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. |
| 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. |
| (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 | GFR600 · PT1" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
Mount this filter regulator on the air drop feeding a pneumatic press or clamping fixture on a fabrication line. The 5 um element keeps particulate out of valve seals, and the low-pressure regulator type suits circuits that run below standard supply pressure.
Fit it on the supply line to cylinders and actuators on a packaging or cartoning conveyor. The 1 in NPT port matches main-line drops, the square bar gauge gives operators a local setpoint readout, and the manual drain is opened at shift start.
Use it ahead of spray guns and air-assisted applicators in a finishing booth, where the 5 um element helps keep water and debris out of the air supply and the regulator holds a steady, low setpoint for consistent atomisation.
Size the unit by port and expected flow: 600 is the largest G-series size, and this unit carries a 1 in NPT port. If your demand sits near the top of a smaller size, step up rather than throttle back. This configuration uses the 5 um element (code W); the standard 40 um element suits general plant air, while 5 um is the choice when downstream valves, cylinders or instruments need finer protection. Drain is manual (code M): an operator opens the drain to dump collected condensate on a schedule; automatic (A) and differential-pressure (blank) versions drain themselves if you prefer. The gauge here is the embedded square type with a bar scale; MPa or psi scales and an external round gauge are order options. Thread: PT is the AirTAC standard, with G (BSPP) and NPT as order options - this unit is NPT. A bracket is included. This is the low-pressure regulator type; its exact regulation range is not published in our data, so confirm it with us. Flow is published as curves, not a single rating - ask us to check the datasheet against your application before ordering.
Quick checklist
The aluminium-alloy bowl on the GFR600 suits harsher environments than a PC bowl. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for this family as curves, not as a single rated number, so we do not quote a figure. Send us your application details and we will confirm the sizing from the datasheet curves before you order.
The M in the code means manual drain: an operator opens the drain to release collected condensate on a schedule. If you prefer unattended operation, the same 600 size is available with an automatic drain (code A) or the default differential-pressure drain (no code).
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.