The AirTAC GFR600-25LF2TK AirTAC Filter Regulator NPT 1 in 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 GFR600-25LF2TK is a size 600 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This configuration is the low-pressure type, built for lines that run below standard plant pressure. It carries a 1 in NPT port, 40 um standard filtration, a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and an aluminium alloy bowl (size 600 bowls are aluminium, not polycarbonate). An embedded square gauge reading in psi is fitted, a reverse/check valve is included to hold downstream pressure, and a mounting bracket comes with the unit.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and can be ordered with manual or automatic drains, 5 um (W) filtration, alternative gauge scales, G (BSPP) or NPT threads in place of the PT standard, and with or without bracket or check valve. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application.
| Model | GFR600-25LF2TK AirTAC Filter Regulator NPT 1 in |
|---|---|
| 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 | 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". |
| (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. |
| (blank) | Mounting bracket included. |
| (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. |
| 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" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
Filtering and regulating the main air drop feeding a production hall section that runs at reduced pressure, with the 1 in port matching the header line and the check valve holding the downstream circuit during upstream dips.
Supplying cleaned, pressure-controlled air to the pneumatic cylinders and air cushions that index, clamp and divert product on a packaging or bottling conveyor, with the differential-pressure drain keeping condensate out of the valves.
Feeding a bank of process or machine control valves where water and 40 um-level particulate must be stripped out and pressure held steady, with the psi-scaled gauge giving operators a direct local reading.
Start with size and port: 600 is the largest G-series size, and this unit steps up to a 1 in NPT connection, so size it against the air demand of the line rather than the pipe it happens to fit. Choose the low-pressure type (code L) only when your circuit runs below standard regulator range; the standard type covers the usual 0.15-0.9 MPa window, while this version's exact range is not published, so confirm it with us. Drain options are differential-pressure (this unit, self-bleeding under flow), automatic, or manual. Filtration is 40 um as fitted here; specify W for 5 um where finer protection is needed. The square gauge is psi-scaled (MPa and bar scales are alternatives), and an external round gauge is optional. Thread is NPT here; PT is the catalogue standard and G (BSPP) is also orderable. A bracket is included. Flow is published as curves, not a single rating, so send us your demand figures and we will confirm sizing before you order.
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 flow for the GFR series as characteristic curves, not as a single rated number, so we do not quote a figure like SCFM or l/min for this unit. Tell us your line pressure and air demand and we will confirm the sizing against the datasheet curves before you order.
The L code makes this a low-pressure regulator type, intended for circuits that run below the standard regulator window; its exact adjustment range is not published, so confirm it with us for your setpoint. This unit also uses a differential-pressure drain: condensate collected in the aluminium bowl is bled off automatically by the pressure differential during flow, with no manual draining needed.
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.