The AirTAC GFR600-25 AirTAC Filter Regulator, 1 in NPT is a genuine G-series filter regulator: water separation, 40 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 size-600 filter regulator: water and particulate removal plus downstream pressure regulation in a single body, sized for 1 in NPT ports. This configuration carries the standard 40 um filter element, a differential-pressure drain that bleeds collected condensate whenever the pressure drop across the element rises, and an aluminium alloy bowl - the material used across the GFR600 size. No pressure gauge is fitted (code N), and a reverse/check valve is included to hold the regulated setting if upstream supply is interrupted. No mounting bracket is supplied with this code.
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 include a 5 um element (code W), automatic or manual drains, fitted gauges in square or round style with MPa, psi or bar scales, and G (BSPP), NPT or PT threads. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR600-25 AirTAC Filter Regulator, 1 in NPT |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (NPT thread) |
| Filtering grade | 40 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 | Not fitted |
| 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. |
| N | No pressure gauge (N). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 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" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
Conditioning the compressed air feeding paint lines: the 40 um element strips water and particulate before the regulated supply reaches spray equipment, with the 1 in NPT port matching high-demand drop headers.
Supplying the pneumatic clamp and pusher cylinders on a packaging conveyor at a fixed, repeatable pressure, with the reverse/check valve holding the setting if the plant air supply dips.
Filtering and regulating the air feeding a machining centre's tool-change clamps, where clean, dry air at a stable setting protects the clamping sequence from moisture and pressure drift.
Work size and port against the air demand of the line: GFR covers 200/300/400/600 with ports from 1/8 in to 1 in, and this unit sits at the top of the range on 1 in NPT. Choose the drain to match maintenance access: differential-pressure (this unit) drains on pressure drop, automatic drains continuously, and manual drains on demand - note the regulation range differs by drain type, 0.15-0.9 MPa (20-130 psi) for auto and differential-pressure, 0.05-0.9 MPa (7-130 psi) for manual. Pick 40 um for general protection or the 5 um W element where finer filtration is needed; add a gauge (square or round, MPa/psi/bar scale) if you want a visible setting, since this code ships without one. Thread is NPT here; PT is the catalogue standard and G (BSPP) is also orderable, and a bracket can be added if this code's no-bracket build does not suit the mounting.
Flow for this family is published as curves, not a single rated number, so we cannot quote one honestly here. Send us your flow and pressure requirements 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 GFR family as curves rather than a single rated figure, so we do not quote a number here. Tell us your line pressure and air demand and we will confirm the flow and datasheet figures for this exact unit on request before you order.
No gauge is fitted - the N in the code means no gauge; square or round gauges with MPa, psi or bar scales are orderable options. The drain is differential-pressure: condensate is discharged automatically when the pressure drop across the 40 um element rises, with automatic (A) and manual (M) drains available as alternative codes.
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.