The AirTAC GFR600-25T AirTAC Filter Regulator 1 in NPT, 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 AirTAC GFR600-25T is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This 600-size unit is fitted with a 1 in NPT port, the low-pressure regulator type, a 40 um standard filter element, an automatic drain that expels collected condensate without manual attention, and an embedded square gauge reading in psi. The aluminium alloy bowl suits this largest frame size, and a mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, PT as the standard thread and G or NPT as order options, with drain, filter grade, gauge scale and bracket choices across the range. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GFR600-25T AirTAC Filter Regulator 1 in NPT, Low-Pressure |
|---|---|
| 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 | 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 | Not fitted |
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). |
| 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. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
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) |
Clamp cylinders on fixture presses often run at reduced pressure to hold workpieces without crushing them. This low-pressure-type filter regulator cleans the supply air and holds the clamp circuit at the set pressure, with the psi gauge giving the operator a direct readout at the machine.
Film-sealing and tucking stations on packaging lines need clean, moisture-free air at a steady reduced pressure to seal consistently. The 1 in NPT port feeds the main header, the 40 um element catches pipe-scale and water, and the automatic drain keeps condensate off the valves during long runs.
Spray guns and air-knife blow-off manifolds are supplied at reduced pressure from a larger header. Mounted at the booth drop with the included bracket, this unit filters the incoming air, regulates it to the setting the process needs, and its automatic drain handles the condensate that collects in a high-volume 1 in line.
Size and port are the first choice: the 600 frame with its 1 in port is the largest step in the GFR range, so match it to the pipe size and the flow your line needs. Drain type is a real decision here - automatic (this unit) drains condensate by itself, while manual and differential-pressure drains suit other service routines. The 40 um element is the standard grade; a 5 um element is available with the W code if finer filtration is needed. The square gauge is fitted in a psi scale, with MPa or bar scales and an external round gauge as options. Thread is NPT on this code; PT is the standard and G is also orderable. A mounting bracket is included.
One honest note before you order: AirTAC publishes filter-regulator flow as curves, not as a single rated figure, so send us your application details 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. Without the K option, air cannot flow back through the unit. A filter regulator adds no oil to the line.
AirTAC publishes GFR flow as performance curves rather than a single rated number, so we do not quote a figure here. Send us your line pressure, downstream demand and duty cycle, and we will confirm the flow and sizing against the datasheet on request before you order.
The A in this code selects the automatic drain: collected condensate is expelled from the aluminium bowl without anyone opening it, which suits unattended or high-humidity installations. Manual-drain versions need periodic draining by an operator, and the differential-pressure drain is the catalogue default - all three are decodable choices in this family.
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.