The AirTAC GFR600-25 AirTAC Filter Regulator 1 in PT, 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 GFR600-25 is a filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in a single body. This size 600 unit carries a 1 inch PT port and the fine 5 um filtration grade (code W), so it both conditions the air and holds the set pressure for large-port pneumatic circuits. It is built as the low-pressure (L) type, drains by hand through the manual drain, and the aluminium alloy bowl - standard on size 600 - stands up to duty where a polycarbonate bowl would not. An external round gauge graduated in psi is fitted, and this configuration ships without a mounting bracket and without a reverse/check valve.
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, a choice of differential-pressure, automatic or manual drain, 40 um standard or 5 um fine filtration, standard or low-pressure regulation, square or round gauges with MPa, psi or bar scales, PT, G or NPT threads, and optional brackets. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the flow and datasheet figures for your application before you order.
| Model | GFR600-25 AirTAC Filter Regulator 1 in PT, 5 um, psi gauge |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (PT 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 | 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". |
| 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. |
| (blank) | PT 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" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-25 (two-unit set) |
At the 1 in main air drop feeding a packaging hall, the unit strips water and fines at 5 um and holds a reduced, stable supply pressure to the hall's distribution manifold, with the psi gauge giving operators a local reading at the drop.
On a conveyor line with air-driven gate and stopper cylinders, the filter regulator conditions the supply and sets the working pressure the actuators were designed for, while the manual drain lets maintenance drain accumulated condensate during rounds.
In a die-casting or machining cell where hot, oily ambient air challenges plastic bowls, the size 600 aluminium alloy bowl and 5 um element protect clamps and fixtures, and the low-pressure type regulation suits circuits set below standard supply pressure.
Step through the decodable choices in order. Size 600 with the 1 in PT port suits the highest-flow branch of the GFR range; step down to 300/400 sizes when the line flow is smaller. Drain: manual suits points where an operator drains on schedule; choose automatic or differential-pressure codes where the bowl should drain itself. Filtration: 40 um is the standard element; this unit carries the 5 um (W) element for finer protection of downstream valves and cylinders. Gauge: the fitted round gauge reads in psi; square embedded gauges and MPa or bar scales are the other catalogue options. Thread: PT is the standard here, with G (BSPP) and NPT available to order. Bracket: this code omits it, so plan your own mounting or order a bracket variant. One caution on regulation: this is the low-pressure (L) type, and its adjustment range is not published as a single figure - we confirm it from the datasheet on request. Flow itself is published as curves, not a single rating, so send us your flow and pressure conditions and we will confirm sizing against the application before you order.
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 flow for the GFR series as curves, not as a single rated figure, so we do not quote a rated flow, Cv or SCFM number. Send us your line pressure, set pressure and required flow, and we will confirm the sizing from the datasheet curves on request before you order.
Manual drain (code M) means the condensate collected in the aluminium bowl is released by hand, which suits attended installations on a drain schedule; automatic and differential-pressure drain codes drain the bowl themselves. This unit is also the low-pressure (L) type with the 5 um (W) element, a round psi gauge fitted, no bracket (J) and no reverse/check valve, on a 1 in PT port at size 600.
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.