The AirTAC GFR600-25 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 GFR600-25 is a filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure at a set point. This 600-size unit has a 1 in NPT port, an automatic drain that expels collected condensate without manual attention, and the standard 40 um filter element. It is the low-pressure regulator type and carries a round pressure gauge scaled in MPa. Maximum inlet pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C (non-freezing). The aluminium alloy bowl suits this larger frame, the unit is supplied without a mounting bracket, and no reverse/check valve is fitted.
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, and options including manual or differential-pressure drains, a 5 um filter element (code W), square or round gauges with MPa, psi or bar scales, G or NPT threads, and brackets. Flow is published as curves rather than a single rating, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR600-25 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 — round, MPa 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. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 1 | Gauge scale: MPa. 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) |
Filtered, regulated air feeding clamp and hold-down actuators along a production line, where the low-pressure regulator type holds a steady set point and the automatic drain keeps condensate out of the circuit without daily attention.
Supplying the divert and stop cylinders on a packaging conveyor, with the 40 um element protecting directional valves from dirt and water and the round MPa gauge letting operators check the set point at a glance.
Regulated air for actuating pneumatic ball and butterfly valves on a plant line, where the 1 in NPT port matches main-line piping and the aluminium bowl is built for the larger 600 frame.
Size and port step up together across 200, 300, 400 and 600; this 600 unit sits on a 1 in NPT port, so pick the size whose flow curve covers your demand and we will confirm the curve on request. The drain on the bowl is automatic on this unit; the family also offers manual and differential-pressure drains. The standard element is 40 um - specify code W for the 5 um option when finer filtration is needed. Gauges are square (embedded) or round (external) with MPa, psi or bar scales; this model carries a round MPa gauge. Thread is PT as the standard, with G (BSPP) and NPT as catalogue options - this model is NPT. Brackets are optional and this unit is supplied without one. Because flow is published as curves, not a single rating, ask us to confirm sizing against your application before ordering.
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 we do not quote a number here. Ask us and we will confirm the flow curve and datasheet figures for this 1 in NPT unit against your application before you order.
The bowl collects water separated from the air, and the A code fits an automatic drain that expels condensate on its own. The family also offers manual drains and a differential-pressure drain as the default; automatic suits installations that are not checked daily. This unit is the automatic-drain version with the standard 40 um element.
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.