The AirTAC AirTAC GFR600-25T Filter Regulator 1 in NPT, 40 um 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 combines water-and-particulate filtration with pressure regulation in a single body, sized for 1 in (NPT) compressed-air lines. This configuration carries the standard 40 um filter element, a differential-pressure drain that bleeds condensate automatically whenever the pressure drop across the element rises, a round pressure gauge reading in psi, and a built-in reverse/check valve that holds the downstream setting if the supply is interrupted. The size-600 bowl is aluminium alloy, and the unit is supplied without a mounting bracket. Maximum inlet pressure is 1.0 MPa (145 psi), the standard regulator covers 0.15-0.9 MPa (20-130 psi), and the working temperature range is -5 to 70 C (non-freezing). The medium is compressed air only.
This is a genuine AirTAC part. The GFR family is published in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, thread options PT (standard), G and NPT, manual or automatic drain variants, a 5 um element option (code W), gauge scale choices, and an optional low-pressure regulator type. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | AirTAC GFR600-25T Filter Regulator 1 in NPT, 40 um |
|---|---|
| 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 | Fitted — round, psi 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. |
| 2 | Gauge scale: psi. 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) |
Installed at the drop from a bottling hall's compressed-air main, it removes condensed water and pipe scale from the plant supply and holds a steady, reduced pressure to the filler and capper air circuits.
Mounted on the air supply to pneumatic diverters and pushers on a parcel-sortation conveyor, it keeps debris and moisture out of the directional valves and gives operators a stable, readable line pressure in psi.
Fitted ahead of a machining centre's pneumatic clamping circuit, it filters the shop air feeding the clamps and, with its built-in check valve, holds the clamp setting if the shop supply dips during a cycle.
Start with the port step: this unit is the size-600 body with a 1 in NPT thread, the largest port in the GFR range, so step down to GFR300 or GFR400 only if your line and fittings are smaller - match the port to the pipe, not to a flow number. Choose the drain next: differential-pressure (this unit) drains on pressure drop and suits continuously running lines; automatic suits intermittent duty; manual suits supervised points. Pick the element grade: 40 um standard for general plant air, 5 um (code W) where downstream valves and cylinders need finer protection. Gauge scale (MPa, psi or bar - this unit reads psi) and the reverse/check valve are order-time choices, as is the bracket.
One honest note on sizing: AirTAC publishes flow for this series as curves, not as a single rated figure, so we do not quote a flow number here. Send us your application details and we will confirm the curve data and correct size against your required flow 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 figure, so we do not quote a flow number. Tell us your line size and required flow and we will confirm the datasheet curve data for this 1 in NPT, size-600 unit on request before you order.
This configuration has the differential-pressure drain (blank code): condensate is discharged automatically whenever the pressure drop across the 40 um element rises, with no operator attention. Choose it for continuously running mains; choose the automatic-drain variant for intermittent duty or the manual-drain variant where drains are checked routinely.
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.