The AirTAC GFR600-25LJF2T AirTAC Filter Regulator NPT1 Low-Pressure is a genuine G-series filter regulator: water separation, 40 µm particulate filtration and balanced-type pressure regulation combined in a single body. It has PT1" ports, a differential-pressure 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 GFR600-25LJF2T is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the size 600 unit with a 1 in NPT port, built as the low-pressure type for circuits that must not exceed lower set pressures. It carries a 40 um standard filter element, a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and an embedded square gauge scaled in psi so the set pressure is readable at the unit. The aluminium alloy bowl on this size 600 unit suits demanding industrial environments.
This is a genuine AirTAC part. The GFR series spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and is available with manual or automatic drains, a 5 um element (code W), MPa/psi/bar gauge scales, and G, NPT or PT threads. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application.
| Model | GFR600-25LJF2T AirTAC Filter Regulator NPT1 Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (NPT thread) |
| Filtering grade | 40 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 | Differential-pressure drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — square, 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". |
| (blank) | Drain: Differential-pressure 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). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
Installed at the drop from a large plant air main to feed downstream actuators and valves with cleaned, regulated air at a stable low set pressure, with the differential drain keeping condensate off the circuit.
Placed ahead of the directional valves and air cylinders that drive a packaging or palletising conveyor, protecting them from water and scale while holding the pressure their controls expect.
Mounted in a large pneumatic control panel as the single conditioning point for a bank of solenoid valves, with the psi-scaled square gauge giving operators a visible set pressure at the panel.
Size 600 with a 1 in NPT port is the largest step in the GFR range - choose it when your line's required flow sits above what the 3/4 in size 400 handles, and verify the fit against the published flow curves before ordering. This unit is the low-pressure type (code L): select it where the downstream equipment requires regulation at lower set pressures than the standard version covers, and confirm the exact range with us since it is not published in the same table as the standard type. The differential-pressure drain is the fit-and-forget choice; switch to automatic (code A) or manual (code M) if your maintenance routine prefers it. The 40 um element is standard - specify 5 um (W) only where finer particulate removal is needed. The square gauge is fitted here scaled in psi; MPa or bar scales and an external round gauge are alternatives. The T suffix orders NPT threading; PT is the catalogue standard and G (BSPP) is also available. J means no mounting bracket is supplied - add one if the unit will not be screwed directly into a manifold or line. Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing 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 GFR series as curves, not as a single rated figure, so we do not quote a number here. Tell us your application's flow and pressure requirements and we will confirm the figures from the datasheet and check the sizing for you before you order.
The L in the code makes this a low-pressure regulator rather than the standard type, for circuits that must be regulated at lower set pressures. Its exact regulation range is not published in the standard table, so confirm it with us against your set pressure. Everything else in the decode is unchanged: 1 in NPT port, 40 um filtration, differential-pressure drain, and a square gauge scaled in psi.
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.