The AirTAC GFR600-25T 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 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 GFR600-25T is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 600-size unit is fitted with a 1 in NPT port, a 5 um filter element (code W), a differential-pressure drain that bleeds condensate automatically as flow passes through, and a low-pressure regulator type for applications that work at reduced set points. The aluminium alloy bowl suits the larger 600 frame, and the embedded square gauge reads in MPa so you can see and set the downstream pressure at a glance. A reverse/check valve is fitted to hold downstream pressure if the supply drops, and the mounting bracket is included.
This is a genuine AirTAC part, not a copy. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options include manual or automatic drains, a 40 um standard element, alternative gauge scales (MPa, psi or bar) and G or NPT threads in place of the PT standard. Flow is published as curves rather than a single rating, so ask us to confirm sizing or any datasheet figure for your application before ordering.
| Model | GFR600-25T AirTAC Filter Regulator 1 in NPT, 5 um |
|---|---|
| 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 | 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, 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. 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. |
| 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) |
Feeds filtered, regulated air to a big pneumatic press or clamp cylinder circuit, with the 5 um element protecting the directional valve and the check valve holding the set pressure if the supply dips.
Sits at the head of a bottling or canning line's air drop, conditioning the supply for grippers, stoppers and diverter actuators while the MPa gauge lets the maintenance team verify set points at a glance.
Conditions the shop-air feed into a CNC machining cell, removing water and fine particles before tool-change and clamping circuits and keeping the downstream pressure stable under varying demand.
Start with the port: this unit is 1 in NPT, so match it to the line size or step up a size if your flow demand is high. If your working pressure sits well below the standard regulator band, the low-pressure (L) type in this code is the right choice; we can confirm its exact set-point band from the datasheet on request. The 5 um element (W) suits air that feeds sensitive valves, cylinders or instruments; the 40 um standard element is fine for general shop-air protection. Drain choice matters: differential-pressure (fitted here) needs no attention during operation, while manual and automatic drains are available as alternatives. Gauge scale can be MPa, psi or bar, and threads can be ordered in PT (standard), G or NPT. Flow is published as curves, not a single rating, so send us your application details 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 curves rather than a single rated figure, so we do not quote a number that is not in the datasheet. Send us your application details and we will confirm the flow curve and sizing for this 1 in NPT unit on request.
The W code in GFR60025LF1WTK selects the 5 um filter element instead of the 40 um standard, which suits air feeding sensitive valves and instruments. The blank drain position is the differential-pressure type: it bleeds accumulated condensate automatically as air flows through, with no manual intervention needed during operation.
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.