The AirTAC AirTAC GFR600-25G Filter Regulator 1 in G, 5 um, psi 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 manual drain and regulates 0.05 - 0.9 MPa (7 - 130 psi). It does not lubricate — add a GL lubricator, or order the GFC two-unit set, if downstream equipment needs oil.
The AirTAC GFR600-25G is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body, so one unit does the job of a filter and a regulator. This configuration is the size 600 unit with a 1 in G (BSPP) port, the fine 5 um filtration element (code W), a manual drain on the bowl, the low-pressure regulator type, a round pressure gauge reading in psi, and a built-in reverse/check valve. The bowl on this size is aluminium alloy, and the J code means the mounting bracket is not included.
This is a genuine AirTAC part in the GFR family, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in up to 1 in. Across the range you can order manual, automatic or differential-pressure drains, 40 um standard or 5 um fine filtration, different gauge styles and scales, G or NPT threads in place of the PT standard, and brackets where needed. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | AirTAC GFR600-25G Filter Regulator 1 in G, 5 um, psi gauge |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (G (BSPP) thread) |
| Filtering grade | 5 µm |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Low-pressure 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 | Manual 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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". |
| M | Drain: Manual drain — this also sets the regulating band (0.05 - 0.9 MPa (7 - 130 psi)). |
| L | Low-pressure 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. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| G | G (BSPP) 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) |
At a spray-booth or paint-line air drop, the 5 um element strips water and fine particles that would spoil finish quality, while the low-pressure regulator holds a gentle, steady supply pressure to the spray guns and the manual drain lets operators bleed accumulated condensate at shift end.
On a carton-forming and sealing conveyor line, this unit filters and regulates the air feeding the cylinders and grippers, the round psi gauge gives operators a visible setpoint, and the check valve holds the downstream setting if upstream supply dips.
Feeding pneumatic clamps, vises and blow-off nozzles on CNC machining centres, the 1 in G port matches the shop main, the 5 um grade protects spool valves and air bearings from fine contamination, and the manual drain suits a shop where bowls are checked daily.
Start with the port and size step: this is the largest GFR size, 600, with a 1 in G thread, suited to lines fed by 1 in piping - step down to GFR200/300/400 if your main runs smaller. Choose the drain to match maintenance access: this unit has a manual drain, which needs someone to bleed the bowl; automatic or differential-pressure drains are available if the unit will be left unattended. The 5 um element (W) is the finer choice over the 40 um standard where downstream equipment is sensitive to particles. Gauge style and scale are selectable (this one is a round gauge in psi), and G or NPT thread can be ordered instead of the PT standard. Note the J code: no mounting bracket is included with this configuration.
One honest note before you order: AirTAC publishes flow for this family as curves, not a single rated figure, and the set range of the low-pressure regulator type is not a published single number either. Send us your line pressure, required downstream setting and expected air demand, and we will confirm sizing against the datasheet before you commit.
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 number, so we do not quote one here. Tell us your line pressure, required downstream setting and expected air demand, and we will confirm the flow figures from the datasheet for your application on request.
The M in the code selects a manual drain: condensate collected in the aluminium alloy bowl is released by hand, which suits installations that are checked regularly. If the unit will sit unattended, the same GFR600 size can be ordered with an automatic drain (code A) or the differential-pressure drain that is the default, and the filtration grade can be the 40 um standard instead of this unit's 5 um fine element.
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.