The AirTAC AirTAC GFR600-25 Filter Regulator 1 in PT 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 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: one body that removes water and particulate from compressed air and then regulates downstream pressure. This 600-size unit is configured for 1 in PT ports, with a manual drain on the bowl, the standard 40 um filter element, and the low-pressure regulator type for circuits that run below standard regulating ranges. The bowl on this size is aluminium alloy, and the unit is fitted with an external round gauge scaled in psi; no mounting bracket is included.
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in up to 1 in, plus options for automatic or differential-pressure drains, a 5 um element (code W), gauge scale in MPa, psi or bar, and G or NPT threads in place of PT. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | AirTAC GFR600-25 Filter Regulator 1 in PT Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT1" (PT thread) |
| Filtering grade | 40 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. |
| (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. |
| (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) |
Feeds filtered, regulated air at reduced pressure to sealing and forming heads on a packaging line, where the process calls for a lower regulated setting than a standard regulator is intended for.
Conditions the air feeding clamp and fixture cylinders on a machining centre, removing water and swarf-carrying particulate while holding a steady, low regulated pressure for consistent clamping.
Sits ahead of spray guns or coating applicators, cleaning the supply air and holding the gentle, stable low pressure that finish work depends on, with the psi gauge giving the operator a direct reading.
Start with the port step: this unit is 600 size with 1 in PT ports, the largest step in the GFR range, so match it to the line diameter and the air demand of the circuit. Choose the drain to suit access: this configuration has a manual drain, which needs someone to open it periodically; automatic and differential-pressure drains are available on other codes if the bowl is hard to reach. The 40 um element is the standard grade; specify the W code for the 5 um option where finer filtration is needed. The fitted round gauge reads in psi; MPa and bar scales are alternatives, and an embedded square gauge is the standard gauge style. PT is the standard thread, with G (BSPP) and NPT available as order options; this code also omits the mounting bracket.
Note that flow for this family is published as curves, not a single rated number, so send us your application details 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. 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 rather than a single rated figure, so there is no one rated flow number we can quote. Send us your line size and air demand and we will confirm the sizing from the datasheet on request.
The M in the code selects a manual drain: accumulated water is released by opening the drain by hand, which suits bowls that are easy to reach; automatic and differential-pressure drains are available on other codes. The L selects the low-pressure regulator type, intended for circuits regulated below the standard range; the exact regulating range for this type is not published in the sheet we work from, so ask us to confirm it for your setpoint.
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.