The AirTAC GFR600-25ALC2WT AirTAC Filter Regulator NPT1 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 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 GFR600-25ALC2WT is an AirTAC GFR600 filter regulator: one body that removes water and particulate down to 5 um and then regulates downstream pressure. This size 600 unit has a 1 in NPT port, an automatic drain that bleeds collected condensate from the aluminium alloy bowl without manual intervention, a low-pressure regulator type for applications that work below standard regulating ranges, and a round pressure gauge reading in psi fitted as standard. A mounting bracket is included.
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, filter grades of 40 um (standard) or 5 um (code W), differential-pressure, automatic or manual drains, and PT, G or NPT threads. 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 | GFR600-25ALC2WT AirTAC Filter Regulator NPT1 Low-Pressure |
|---|---|
| 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 | 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". |
| 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. |
| 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. |
| (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) |
Fixture clamps and swing cylinders on a CNC cell that must hold at reduced regulated pressure get one body that also strips water and 5 um fines before they reach the clamp valves.
On a carton-forming or wrapping line, the 1 in port feeds a bank of air cylinders, the automatic drain keeps condensate out of the circuit during continuous shifts, and the psi gauge gives operators a visible setpoint.
A bench or pilot-plant air drop feeding sensitive pneumatic controls uses the 5 um element to remove fine particulate and the low-pressure regulator to hold a gentle, stable supply pressure.
Size 600 with a 1 in port is the largest step in the GFR range - step down to 200/300/400 sizes if your flow demand is smaller, since port size tracks the flow curve. The 5 um element (code W) suits air that feeds sensitive valves, cylinders or instruments; the 40 um standard grade is enough for general shop-air protection. The automatic drain suits unattended or hard-to-reach installations; manual and differential-pressure drains are the alternatives in this family.
The low-pressure regulator type in this unit is intended where working pressures sit below the standard regulating band - the exact range is not published in the material we hold, so confirm it with us before ordering. The fitted gauge reads psi; MPa and bar scales and the embedded square gauge are the other catalogue choices. PT is the standard thread and G or NPT are order options - this unit is specified with NPT. A bracket is included. Because flow is published as curves, not a single rating, ask us to confirm sizing against your application before you order.
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 the GFR600 as curves, not as a single rated figure, so we do not quote a number that is not in the material we hold. Tell us your application and we will confirm the flow curves and correct sizing from the datasheet on request.
The A in the code specifies an automatic drain, which discharges collected condensate from the bowl on its own - useful where the unit is mounted out of reach or runs unattended. The GFR family also offers a manual drain and a differential-pressure drain as the default; those are separate order codes you can choose instead.
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.