The AirTAC GFR600-25 AirTAC Filter Regulator 1 in NPT, 5 um 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 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 one body. This size 600 unit is built around a 1 in NPT port for high-flow main lines, and this configuration carries the fine 5 um filter element (code W) instead of the standard 40 um element, a manual drain on the bowl, an embedded square gauge scaled in bar, and a reverse/check valve fitted. The bowl on size 600 units is aluminium alloy, and this version is supplied without a mounting bracket.
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, a choice of differential-pressure, automatic or manual drain, 40 um or 5 um filtration, gauge scale options, PT, G or NPT threads, and bracket or no-bracket mounting. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR600-25 AirTAC Filter Regulator 1 in NPT, 5 um |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (NPT thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 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 | Manual 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 0.05 - 0.9 MPa (7 - 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| (blank) | Standard 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. |
| 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) |
Installed at the 1 in main drop feeding a body-shop cell, it filters water and swarf out of the plant air and holds a steady regulated supply to the cell's valves and cylinders, with the bar-scaled gauge giving operators a local pressure readout.
Mounted ahead of the pneumatic stopper and pusher actuators on a bottling conveyor, it delivers cleaned air at a fixed pressure so indexing and divert moves stay repeatable through each shift, with the manual drain emptied during scheduled washdown checks.
Feeding quarter-turn pneumatic actuators on a treatment plant's isolation valves, it removes moisture and fine particles that would score actuator seals and holds the set pressure so valve stroke torque stays consistent, with the check valve protecting the circuit from supply-side backflow.
Start with the port and size step: size 600 with a 1 in port suits the largest branch and main lines, and the right step depends on the flow your line needs. Choose the drain to match maintenance: manual drain (this unit) needs someone to open it, automatic drains on a cycle, and the differential-pressure default drains on a pressure drop. Choose 5 um filtration when downstream equipment needs finer air than the standard 40 um element provides. Pick the gauge scale you want to read (MPa, psi or bar) and the thread you need: PT is the standard, with G and NPT as order options. Note the bracket choice too, since this version omits it.
One honest note before you order: AirTAC publishes flow as curves, not as a single rated figure, so we cannot quote you one number here. Send us your line conditions and we will confirm sizing against the datasheet 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 there is no one number we can honestly quote. Send us your line pressure and the flow your application needs, and we will confirm the sizing against the datasheet on request before you order.
The M in the code means the bowl drain is opened by hand, so someone empties collected water as part of routine checks. If the unit sits where nobody passes regularly, an automatic-drain version (code A) drains on its own, and the standard differential-pressure drain empties on a pressure drop. All three are catalogue options across the GFR range.
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.