The AirTAC GFR600-25AF1WTK AirTAC Filter Regulator NPT 1 in 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 GFR600-25AF1WTK is an AirTAC GFR filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This size 600 unit is specified with a 1 in NPT port, a 5 um filter element (the finer of the two published grades), an automatic drain that expels collected condensate without manual attention, an embedded square pressure gauge scaled in MPa, and a reverse/check valve fitted on the regulator side. The bowl on this 600 size is aluminium alloy, and the unit is supplied with a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the regulator adjusts from 0.15 to 0.9 MPa (20-130 psi); operating temperature is -5 to 70 C, non-freezing.
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, a choice of differential-pressure, automatic or manual drain, 40 um standard or 5 um (W) filtration, square or square/round gauge options with MPa, psi or bar scales, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR600-25AF1WTK AirTAC Filter Regulator NPT 1 in |
|---|---|
| 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 | Automatic drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — square, MPa 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". |
| A | Drain: Automatic 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. |
| 1 | Gauge scale: MPa. 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) |
Installed at the drop point of a large assembly-plant air main, it cleans water and swarf from the supply, holds a steady regulated pressure to the impact tools and nutrunners, and its automatic drain keeps condensate off the floor without daily checks.
Feeding the cylinders that divert and stop cartons on a high-throughput packaging conveyor, the 5 um element protects the valve internals, the regulator holds consistent actuation pressure, and the check valve holds the downstream circuit if supply dips.
Mounted on the air preparation panel of an injection moulding machine, it conditions the supply to core-pull and ejection circuits, the square MPa gauge gives the setter a clear setpoint readout, and the 1 in NPT port matches the machine's main air inlet.
Step up through the GFR sizes (200, 300, 400, 600) as port size and demand grow; this 600 unit carries the largest port in the range at 1 in NPT, so match it to your line size and the flow your actuators need. Drain choice matters: automatic (this unit) suits unattended or hard-to-reach installations, manual suits supervised points, and differential-pressure drain is the default. Filtration is 40 um standard, with 5 um (code W, fitted here) for finer protection downstream. Gauges are embedded square as standard with MPa, psi or bar scales, and an external round gauge is optional; PT is the standard thread with G and NPT as orderable options, and a bracket is included on GFR units.
One honest note before you order: flow for the GFR series is published as curves, not a single rated number, so we cannot quote a rated flow figure here. Send us your application details and we will confirm the datasheet and sizing against your requirement before you commit.
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 rather than a single rated figure, so we do not state a rated flow, Cv or SCFM number. Tell us your application and we will confirm the datasheet and the correct sizing on request before you order.
The A in the code specifies an automatic drain, which expels collected condensate from the aluminium bowl on its own - useful where the unit is mounted high or visited infrequently. GFR units can also be ordered with a manual drain or with the default differential-pressure drain; just specify the drain code you need.
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.