The AirTAC GFR600-25 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 GFR600-25 is a filter regulator: it removes water and particulate from compressed air and holds downstream pressure steady, in a single body. This size 600 unit is built for 1 in NPT ports. It carries a 5 um filter element (code W), an automatic drain that ejects collected condensate without anyone opening the bowl, an external round gauge reading in psi, and a reverse/check valve to prevent backflow. The bowl is aluminium alloy, as fitted on the 600 size, and this configuration is supplied without a mounting bracket.
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, in PT (standard), G and NPT threads, with manual, automatic or differential-pressure drains, 40 um or 5 um elements, and a choice of gauge scale. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. Rated flow is published as curves rather than a single figure, so ask us to confirm the datasheet for your application.
| Model | GFR600-25 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 | Automatic drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — round, 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. 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. |
| 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. |
| 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 take-off from a stamping plant's compressor room, the unit dries and filters the plant air and holds a set pressure on the ring main feeding the press lines.
Mounted ahead of a machining cell, it removes water and fine particles from the shop air and keeps a steady regulated supply to clamps, tool changers and air-powered fixtures.
Fitted on the air drop feeding a bottling line's conveyor stops and pusher cylinders, it cleans the supply and holds the pressure the cylinders were set up with.
Size and port step up with flow demand: this is the 600 size with a 1 in NPT port, the largest step in the GFR range, so match it against your line's requirement - we can confirm flow from the datasheet curves before you order. Drain options are differential-pressure (the family default), automatic (as fitted here) and manual; automatic suits points where nobody inspects the bowl regularly. Filter grade is 40 um standard or 5 um (W) as fitted here for finer protection of downstream equipment. Gauges: an embedded square gauge is standard and an external round gauge is optional, in MPa, psi or bar scales - this unit has a round psi gauge. Thread is PT as standard, with G and NPT as order options; this unit is NPT. Brackets are optional, and this configuration is supplied without one.
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 GFR600 as curves, not as a single rated figure, so we do not quote a number on the page. Tell us your line pressure and the flow your application needs, and we will confirm the sizing against the datasheet curves before you order.
The automatic drain on this GFR600-25 ejects collected condensate on its own, which suits installations nobody inspects regularly. The GFR family also offers the differential-pressure drain (the default) and a manual drain (code M); the drain choice also sets the regulator's adjustment range, so it is worth deciding before ordering.
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.