The AirTAC GFR600-25 AirTAC Filter Regulator G1 Low-Pressure 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 configuration is the size 600 unit with a G1 (1 in) port, the fine 5 um filtration grade (code W), a manual drain bowl, the low-pressure regulator type, a fitted reverse/check valve, and a round pressure gauge reading in psi. The aluminium alloy bowl suits this large frame size, maximum inlet pressure is 1.0 MPa (145 psi), and the working temperature range is -5 to 70 C (non-freezing).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options for drain type, 40 um or 5 um filtration, gauge style and scale, PT, G or NPT thread, and bracket choice. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR600-25 AirTAC Filter Regulator G1 Low-Pressure |
|---|---|
| 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. |
| (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. |
| 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) |
On a stamping or forming press fed from a plant air main, this 1 in filter regulator cleans the supply to 5 um and holds a steady low set pressure to the press cylinders, with the manual drain opened during scheduled maintenance rounds.
At the drop from a header into a machining cell, the unit strips water and fine particulate before air reaches tool-change actuators and clamps, while the psi gauge lets a setter verify supply pressure at a glance.
Feeding a high-cycle packaging machine's valve manifold, the 5 um grade protects solenoid valves from condensate and debris, and the fitted check valve holds downstream pressure if the main supply dips.
Start with the port and size step: this is the largest GFR frame, size 600 with a G1 (1 in) port, chosen when the line's air demand calls for the top of the range. Filtration here is the fine 5 um grade (W); the standard grade is 40 um, so pick 5 um where downstream valves and instruments need cleaner air. The manual drain means an operator opens the bowl drain during checks; if you cannot schedule that, ask about automatic or differential-pressure drain variants. The gauge fitted here is the external round type on a psi scale; embedded square gauges and MPa or bar scales are alternatives. Thread is G (BSPP) on this code; PT is the standard and NPT is an order option. A bracket is included for panel or wall mounting.
One honest note on sizing: flow for GFR units is published as curves, not a single rated figure, so send us your application's air demand and we will confirm the correct size from 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 flow for GFR units as curves, not as a single rated number, so we do not quote a figure here. Send us your application's air demand and operating pressure and we will confirm the sizing against the datasheet curves before you order.
This code carries M, the manual drain: condensate collected in the aluminium bowl is released by opening the drain during routine checks, which suits lines with scheduled maintenance. If the unit will be unattended, ask us about the automatic or differential-pressure drain variants of the same size.
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.