The AirTAC GFR600-25 AirTAC Filter Regulator NPT1 5um Round 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: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 600-size unit is built around a 1 in NPT port, with 5 um filtration (the finer of the two catalogue grades), a differential-pressure drain that bleeds collected condensate automatically as flow passes through, and a round pressure gauge on an MPa scale. It also carries a reverse (check) valve, so downstream pressure is held if the upstream supply drops. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulating range is 0.15-0.9 MPa (20-130 psi), and the working temperature range is -5 to 70 C (non-freezing). At size 600, the bowl is aluminium alloy.
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, and options including 40 um or 5 um filtration, automatic, manual or differential-pressure drains, square or round gauges on MPa, psi or bar scales, a low-pressure regulator type, a reverse valve, and PT, G or NPT threads. Published flow data appears as curves rather than a single rating, so we confirm flow and datasheet figures for your application on request.
| Model | GFR600-25 AirTAC Filter Regulator NPT1 5um Round 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, 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". |
| (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. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. 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 take-off of a large compressed-air ring main, the 1 in port and 5 um element condition the supply feeding a production hall, dropping the pressure to the level the distribution headers are set for.
Feeding a bank of pneumatic cylinders, grippers and air fittings on an automated assembly line, the unit cleans the air to 5 um and holds a stable regulated pressure so the cell cycles consistently.
Mounted ahead of conveyor diverters, packaging machinery and blow-off stations, the filter regulator removes water and particles and sets the working pressure, with the check valve holding the circuit if supply dips.
Choose size and port against the air demand of the line: this 600-size unit steps up to a 1 in NPT port for higher-flow circuits, while 200/300/400 sizes cover smaller ports. Filtration is set by the grade code: 40 um is the standard element, and the W code on this model selects the finer 5 um element for downstream equipment that needs cleaner air. Drain type is a real choice: differential-pressure (fitted here) drains with flow, automatic drains regardless of flow, and manual requires operator action; the standard 0.15-0.9 MPa regulating range applies to this configuration. The gauge is round on an MPa scale, with square embedded gauges and psi/bar scales available as alternatives. Thread options are PT (standard), G and NPT - this model is ordered in NPT. A mounting bracket is included. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
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 figure, so we do not quote a number here. Tell us your application and we will confirm the flow and datasheet figures for the GFR600-25 on request before you order.
The W code selects the 5 um filtration element, the finer catalogue grade, for downstream equipment that needs cleaner air than the 40 um standard. The drain is differential-pressure type: it discharges collected condensate as air flows through, with no operator action. Automatic and manual drains are available on other configurations in the family.
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.