The AirTAC GFR600-25 AirTAC Filter Regulator NPT1, 5 um, Auto Drain 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: one body that removes water and particulate from compressed air and then regulates downstream pressure. This 600-size unit is fitted with a 1 in NPT port, 5 um filtration (the finer W grade, versus the standard 40 um element), an automatic drain that expels collected condensate without manual attention, and a reverse/check valve that holds downstream pressure when the supply is lost. The aluminium alloy bowl suits this large frame size, and the round external gauge reads in MPa so setpoints can be checked at a glance.
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, in PT (standard), G and NPT threads, with a choice of drain type, filter grade, gauge style and scale, and optional reverse valve. Maximum inlet pressure is 1.0 MPa (145 psi) and the standard regulator adjusts from 0.15 to 0.9 MPa (20-130 psi) with automatic drain. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application.
| Model | GFR600-25 AirTAC Filter Regulator NPT1, 5 um, Auto Drain |
|---|---|
| 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, 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". |
| 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. |
| 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 clean, regulated air to the tool-change clamps and pallet-locking cylinders on a machining centre, with 5 um filtration protecting the fine-tolerance valve spools and the check valve holding clamp pressure through a supply dip.
Sits at the head of the air header on a carton-forming and sealing line, conditioning the supply and holding a stable setpoint for the sealing cylinders so fold and press strokes stay repeatable across the shift.
Supplies the air cylinders that divert, stop and merge bottles between conveyor lanes, filtering water carry-over from the compressor ring main and regulating pressure so diverter strokes stay consistent at line speed.
Start with the port step: this unit is the 600 size with a 1 in NPT port, the largest in the GFR range - match it to your line size and the flow your actuators actually need. Filtration is the 5 um W grade; choose it when downstream valves and instruments are sensitive to fine particulate, otherwise the standard 40 um element is the economical choice. The automatic drain handles condensate removal on its own, which suits unmanned or high-humidity installations; manual and differential-pressure drains are available in the family if you prefer operator-controlled or pressure-differential draining. The round gauge reads in MPa; psi and bar scales and a square embedded gauge are the other catalogue options. A reverse/check valve is fitted, and no mounting bracket is included - brackets are optional. Thread is NPT here; PT is the standard thread and G is also available to order. Because flow is published as curves rather than a single rating, send us your application details and we will confirm sizing against 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 GFR600 series as curves, not as a single rated number, so we do not quote a figure here. Send us your line pressure, downstream pressure target and the air demand of your equipment, and we will confirm the flow and the full datasheet for this exact model on request.
The A in the code selects the automatic drain, which ejects collected condensate by itself instead of waiting for an operator, and the W selects the 5 um element instead of the standard 40 um. Together they suit installations that run unattended with sensitive downstream valves. If you would rather drain manually or on a pressure differential, or use the 40 um grade, those are catalogue options in the same 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.