The AirTAC GFR600-25 AirTAC Filter Regulator PT 1 in, Auto Drain 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 AirTAC GFR600-25 is a filter regulator: one body that removes water and particulate from compressed air and then reduces and holds the downstream pressure. This size 600 unit is fitted with a 1 in PT port, a 40 um standard filter element, and an automatic drain that bleeds collected condensate from the aluminium alloy bowl without anyone opening it. It is the low-pressure type (code L), and the fitted round gauge reads in psi so the setpoint is visible at the machine. A reverse/check valve (code K) is fitted, and the mounting bracket is included.
This is a genuine AirTAC part from the GFR filter-regulator line, which spans sizes 200 to 600 with port sizes from 1/8 in to 1 in, a choice of automatic, manual or differential-pressure drains, 40 um or 5 um (W) elements, square or round gauges in MPa, psi or bar scales, and G, NPT or PT threads. AirTAC publishes flow for this family as curves rather than a single rated figure; ask us and we will confirm the flow and datasheet figures for your application before you order.
| Model | GFR600-25 AirTAC Filter Regulator PT 1 in, Auto Drain |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (PT 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 — 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". |
| 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. |
| (blank) | Mounting bracket included. |
| (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. |
| (blank) | PT 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) |
Feeds filtered, regulated air to the actuator circuits of a cartoning or wrapping line that runs at a low setpoint, with the automatic drain keeping the aluminium bowl clear between shifts.
Conditions the air feeding a spray gun manifold: the 40 um element strips water and pipe scale, and the low-pressure regulator holds the steady, reduced pressure a spray application needs.
Sits at the drop to a conveyor line's air cylinders and blow-off nozzles, where the check valve keeps the circuit from losing its set pressure if the main supply dips.
Size 600 with a 1 in port is the largest step in the GFR range, so choose it when the line's required flow points to the top of the family's curve chart - we will confirm the exact curve against your demand before ordering. This unit is the low-pressure type, so if your setpoint sits in the upper standard range rather than the low-pressure band, tell us and we will check the right variant. The 40 um element suits general plant air; specify the W code if you need the 5 um grade. Drain is automatic here, which suits unattended or hard-to-reach installations; manual and differential-pressure drains are the other catalogue choices. The round psi gauge is fitted on this code, and the reverse/check valve holds downstream pressure if the supply drops. Thread is PT as standard; G (BSPP) and NPT are order options. Bracket is included.
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 performance curves, not as a single rated number, so we do not quote a figure here. Send us your line pressure, setpoint and air demand and we will confirm the flow from the datasheet for this exact unit before you order.
The A code means condensate collected in the aluminium alloy bowl is discharged automatically, so the unit suits installations that are not checked daily. The K code adds a reverse/check valve, which holds the downstream pressure if the upstream supply is interrupted. If you would rather drain by hand or rely on differential pressure, those are the other catalogue drain options.
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.