The AirTAC GFR600-25 AirTAC Filter Regulator G1 Low-Pressure 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 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 GFR600-25 is an AirTAC filter regulator: water and particulate filtration plus pressure regulation combined in a single body. This configuration takes a G1 (1 in) thread, uses the 40 um standard filter element, and drains condensate automatically, so the bowl does not need manual bleeding during a shift. The regulator is the low-pressure type, a square pressure gauge reading in psi is fitted, and a reverse (check) valve is built in. The size-600 bowl is aluminium alloy, and the unit is supplied without a mounting bracket.
This is a genuine AirTAC part. The GFR family is made in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and options include manual or differential-pressure drains, a 5 um element (code W), G or NPT threads in place of the PT standard, gauge scale choices and a bracket. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -5 to 70 C, non-freezing. 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 G1 Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (G (BSPP) thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 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 | Automatic drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — square, 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". |
| A | Drain: Automatic drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| L | Low-pressure 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. |
| 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. |
| 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" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
Supplying filtered, regulated air to quarter-turn actuators on a water-treatment valve skid, with the built-in check valve in the air line and the automatic drain coping with a humid compressor supply.
Regulating air to the stopper and pusher cylinders on a packaging conveyor, where the automatic drain keeps condensate out of the directional valves during continuous runs.
Feeding a low-pressure air blow-off nozzle on a filling line, where the low-pressure regulator type and 40 um element suit a clean, regulated air jet.
Start from the port and size: this unit is size 600 with a 1 in G thread, the largest step in the family; the 200/300/400 sizes cover 1/8 in to 3/4 in if your line is smaller. Choose the drain to match attendance: automatic (this unit) clears condensate by itself, manual needs an operator, and differential-pressure is the catalogue default. Filter grade is 40 um standard here; specify code W for the 5 um element if finer filtration is needed. The fitted square gauge reads in psi, with MPa and bar scales as alternatives and an external round gauge optional. Thread is G on this code; PT is the standard and NPT is an order option. No bracket is included with this code, but one can be specified.
Because AirTAC publishes flow as curves rather than a single rated figure, we do not quote a flow number here. Send us your application 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 GFR flow as curves, not as a single rated number, so we do not quote a figure here. Tell us your application and we will confirm the flow and sizing from the datasheet on request.
It marks the low-pressure regulator type. The exact adjustment range for the low-pressure version is not published in the catalogue, so we confirm it on request. For context, the standard GFR adjustment range is 0.15-0.9 MPa with automatic or differential-pressure drain. This unit also carries an automatic drain, a square psi gauge, a built-in check valve and no mounting bracket.
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.