The AirTAC GFR60025F3WTK 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 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 GFR60025F3WTK is a size 600 filter regulator that removes water and particulate from compressed air and holds downstream pressure in one body. This configuration carries a 1 in NPT port, a fine 5 um filter element (code W), a differential-pressure drain that bleeds collected condensate automatically as pressure drop builds, and an aluminium alloy bowl, which is the standard bowl material at size 600. A square pressure gauge scaled in bar is fitted, a reverse/check valve (code K) holds the downstream setting if upstream supply is interrupted, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200 to 600, with port sizes from 1/8 in to 1 in, a choice of 40 um standard or 5 um fine filtration, differential-pressure, automatic or manual drains, gauge scale options, and PT, G or NPT threads. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet figures for your application.
| Model | GFR60025F3WTK 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 | Standard 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, bar 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. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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)). |
| (blank) | Standard 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. |
| 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" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
Drops a 1 in compressed-air main feeding a production hall to its working pressure, with 5 um filtration protecting every downstream drop and the check valve holding the setting through supply dips.
Feeds cylinder- and actuator-driven conveyor and case-packing equipment with clean, regulated air; the differential-pressure drain keeps condensate off the line without daily manual attention.
Serves as the single conditioning point on an automated machine's air inlet, filtering to 5 um ahead of precision valves and holding a stable bar-set pressure read on the fitted square gauge.
Start with the port step: size 600 with a 1 in NPT port sits at the top of the GFR range, so step down to 200/300/400 if your line runs smaller ports and lower air demand. Choose the drain next: differential-pressure (this unit) suits steady duty, automatic drain suits unattended installations, and manual drain suits periodically attended stations. Pick the filter grade to match the downstream equipment: 40 um standard for general protection, 5 um (this unit, code W) for finer components such as precision valves and instruments. Gauge scale is selectable (MPa, psi or bar; this unit is square, bar), and thread is PT as standard with G and NPT as order options - this unit is NPT. A bracket is included; a reverse/check valve can be specified (fitted here, code K).
One honest note on sizing: flow is published as curves, not a single rated number, so send us your application details and we will confirm the right size against the curves 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 curves, not as a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the flow figures from the datasheet so you can size the unit correctly before ordering.
The W in the code specifies the fine 5 um filter element instead of the 40 um standard, which suits downstream precision valves and instruments. The K specifies a reverse/check valve, which holds the regulated downstream pressure if the upstream supply is interrupted. Both are standard catalogue options on the GFR family.
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.