The AirTAC GFR600-25 AirTAC Filter Regulator NPT1 in, 5 um, Bar Gauge 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 GFR600-25 is a filter regulator: one body that removes water and particulate from compressed air and sets downstream pressure. This size 600 unit is fitted with a 1 in NPT port, a 5 um filter element (the finer W grade, versus the standard 40 um), a differential-pressure auto drain on the bowl, a round pressure gauge reading in bar, and a built-in reverse/check valve that holds downstream pressure if the supply drops. The aluminium alloy bowl suits this large frame, and the standard regulator covers an adjustment range of 0.15-0.9 MPa (20-130 psi). Maximum inlet pressure is 1.0 MPa (145 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 port options from 1/8 in to 1 in, a choice of drain types, 40 um or 5 um filtration, gauge styles and scales, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR600-25 AirTAC Filter Regulator NPT1 in, 5 um, Bar Gauge |
|---|---|
| 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 — round, 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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 drop feeding a CNC machining cell, it cleans the plant air to 5 um and holds a steady regulated pressure to fixtures, clamps and tool-change actuators, with the check valve holding settings through supply dips.
Mounted on the air header serving conveyor diverters, case erectors and carton sealers, it delivers filtered, regulated air so cylinders and vacuum generators on the line run on consistent, dry supply.
Fitted on the air supply to lab automation, analytical instruments and sample-handling pneumatics, the 5 um element and stable regulation protect sensitive actuators and valves from particulate and pressure fluctuation.
Size 600 with a 1 in NPT port is the largest frame in the GFR range - step up or down through 200/300/400 to match the pipe size and flow demand of the line. This unit carries the 5 um W-grade element: choose it where downstream equipment tolerates less particulate than the standard 40 um grade allows. The differential-pressure drain bleeds accumulated condensate automatically as the pressure differential across the element rises; automatic (A) and manual (M) drain variants exist if you prefer. The round gauge here reads in bar; square embedded gauges and MPa/psi scales are alternatives. The fitted check valve holds set pressure against supply dips, and this configuration omits the mounting bracket. Thread is NPT here; PT is the catalogue standard and G is also orderable. Because flow is published as curves rather than one rated figure, send us your application details and we will confirm sizing from the datasheet 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 number, so we do not quote a figure here. Tell us your application and we will confirm the relevant flow data from the datasheet before you order.
The W in the code GFR60025JC3WTK specifies the optional 5 um filter grade instead of the standard 40 um element, and the trailing K specifies a built-in reverse/check valve that holds downstream pressure if the upstream supply fails. Both are catalogue options you can include or omit when 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.