The AirTAC GFR600-25 AirTAC Filter Regulator NPT 1 in, 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: it removes water and particulate from compressed air and holds downstream pressure at your setpoint in a single 1-inch (NPT) body. This configuration carries the 5 um filter element (code W) for finer air than the standard 40 um grade, an automatic drain that expels collected condensate without manual intervention, an embedded square gauge reading in bar, and a reverse/check valve fitted. The size 600 aluminium alloy bowl suits larger plant air lines, with a maximum inlet pressure of 1.0 MPa (145 psi) and an operating temperature of -5 to 70 C (non-freezing). The standard regulator adjusts from 0.15 to 0.9 MPa (20-130 psi).
This is a genuine AirTAC part in the GFR series, which spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, PT as the standard thread and G or NPT as order options, plus a choice of drain type, filter grade, gauge scale and bracket. Flow for this series is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GFR600-25 AirTAC Filter Regulator NPT 1 in, 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 — 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 0.15 - 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). |
| 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) |
Mounted at the 1 in main-air drop feeding a stamping press cell, the unit strips water and scale from the header supply and holds a steady setpoint so clutch, counterbalance and clamp circuits see consistent pressure shift to shift.
On a cartoning or shrink-wrap packaging line, the 5 um element and automatic drain protect downstream valve manifolds and actuators from condensate carryover, while the regulator keeps wrapper-tension and sealing cylinders on a stable supply.
Feeding a lab autoclave, environmental chamber or pneumatic test bench, the finer 5 um grade and bar-reading gauge give technicians a controlled, visible supply pressure, and the check valve holds the setting if the upstream supply dips.
Step up or down through the GFR sizes (200, 300, 400, 600) against the port and the flow your line needs; this unit is the size 600 with a 1 in NPT port, the largest step in the family. Choose the drain to match the installation: automatic (as here) where the unit is hard to reach or the line runs unattended, manual where an operator is on hand, or the default differential-pressure type. Pick the filter grade for the job: 40 um standard for general plant air, 5 um (this unit, code W) where downstream equipment needs finer air. Gauge scale is selectable (MPa, psi or bar; this unit is bar) and the embedded square gauge is standard with an external round gauge optional. Thread is PT as standard, ordered as G or NPT; this unit is NPT. A mounting bracket is optional and this configuration ships without one.
Sizing honestly: flow for the GFR series is published as curves, not a single rated number, so send us your flow and pressure requirements and we will confirm the correct size 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 GFR-series flow as curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Tell us your line size, inlet pressure and required downstream flow, and we will confirm the sizing against the datasheet on request before you order.
The A in the code GFR60025AJF3WTK means an automatic drain: collected condensate is expelled from the aluminium alloy bowl without anyone opening it, which suits unattended or hard-to-reach installations. A manual drain (code M) is the choice where an operator is on site daily and you want discharge only on demand; the family default is a differential-pressure drain. Note the regulator range differs by drain type: 0.15-0.9 MPa (20-130 psi) with automatic or differential-pressure drain, 0.05-0.9 MPa (7-130 psi) with manual.
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.