The AirTAC GFR600-25ALJC2WT AirTAC Filter Regulator 1 in NPT 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 GFR600-25ALJC2WT is a size-600 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration has a 1 in NPT port, a 5 um filter element (code W), an automatic drain that discharges collected condensate without manual attention, and a low-pressure regulator type. It is fitted with an external round pressure gauge reading in psi, and the aluminium alloy bowl suits this largest frame in the series. No mounting bracket is included with this code.
This is a genuine AirTAC part. The GFR filter-regulator family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, in PT (standard), G and NPT threads, with manual, automatic or differential-pressure drains, 40 um or 5 um elements, gauge choices and scale options. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR600-25ALJC2WT AirTAC Filter Regulator 1 in NPT |
|---|---|
| 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. |
| 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. |
| (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) |
Installed on the 1 in distribution header feeding a production hall, it filters water and scale out of the plant air supply and holds a steady low-pressure setting for the whole downstream circuit, with the automatic drain clearing condensate between shifts.
Mounted ahead of the valve manifold on a big clamping or press fixture, it protects the directional valves from water and particles and regulates the supply to the pressure the fixture was designed around, with the round psi gauge giving a clear local reading.
Fitted at the air take-off for a conveyor line's cylinders and air bells, it keeps dust and moisture out of the actuators and regulates the line to the pressure the transport function needs, while the automatic drain handles condensate in a rarely visited corner of the plant.
Start with the port step: this code is the size-600 frame with a 1 in NPT port, the largest in the GFR range, so match it to the main line size and the flow your circuit needs. Choose the drain to suit access: automatic (this code) suits installations that are not checked daily, manual suits attended stations, and differential-pressure is the catalogue default. Pick the element grade: 5 um (this code) where downstream equipment needs finer filtration, 40 um for general protection. Gauge options are the embedded square gauge or an external round gauge, with MPa, psi or bar scales; this code carries a round psi gauge. Thread is NPT here, with PT standard and G available to order, and bracket J means no bracket is supplied. Because flow is published as curves rather than a single rating, 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. 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 GFR series as curves, not as a single rated figure, so we do not quote a number here. Tell us your line size and application and we will confirm the relevant flow figures from the datasheet on request before you order.
The A in the code specifies an automatic drain, which discharges collected condensate from the aluminium bowl without anyone opening it - useful for units mounted high or away from daily walk-rounds. The GFR family is also available with manual or differential-pressure drains, and with a 40 um element instead of the 5 um element fitted here, as separate order codes.
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.