The AirTAC GFR600C25ALF3WT AirTAC Filter Regulator NPT1 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 See datasheet ports, a differential-pressure 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 GFR600C25ALF3WT is an AirTAC GFR-series filter regulator: one body that removes water and particulate from compressed air and then regulates downstream pressure. This 600-size unit is fitted with a 1 in NPT port, an automatic drain that expels collected condensate without manual attention, and a 5 um filter element (code W) for finer filtration than the standard 40 um grade. It is the low-pressure regulator type and carries an embedded square gauge scaled in bar; a mounting bracket is included and no reverse/check valve is fitted. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the operating temperature range is -5 to 70 C, non-freezing. The 600-size bowl is aluminium alloy.
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 is configurable by drain type (differential-pressure, automatic or manual), filter grade (40 um standard, 5 um optional), gauge style and scale (MPa, psi or bar), thread (PT standard, with G and NPT as order options) and bracket. Flow is published as curves rather than a single rated figure, so we confirm flow and other datasheet figures on request.
| Model | GFR600C25ALF3WT AirTAC Filter Regulator NPT1 Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | See datasheet (PT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Standard 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 | Differential-pressure drain |
| Bowl material | Aluminium alloy |
| Pressure gauge | Fitted — factory standard, Factory standard 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. Standard type, regulating 0.15 - 0.9 MPa (20 - 130 psi). 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. |
|---|---|
| C2 | Port size See datasheet. This body offers 20 = PT3/4", 25 = PT1". |
| (blank) | Drain: Differential-pressure drain — this also sets the regulating band (0.15 - 0.9 MPa (20 - 130 psi)). |
| (blank) | Standard type. Blank is standard, L is the low-pressure type. |
| (blank) | Mounting bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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 · See datasheet · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-C2 (two-unit set) |
At the main 1 in air drop feeding a hall of assembly stations, the unit strips condensed water and pipe-scale at 5 um and holds a steady low regulated pressure to every bench, with the automatic drain keeping the aluminium bowl clear unattended.
On a carton-sealing conveyor with air-driven pushers and clamps, the filter regulator conditions the supply and keeps actuator pressure consistent through a full shift, while the automatic drain handles condensate in a humid plant.
For quarter-turn pneumatic valve actuators on a process line, the unit filters the instrument air supply and regulates it to the actuator's low set pressure, with the bar-scale square gauge giving the operator a direct local reading.
Use the 600 size with its 1 in NPT port when your line volume calls for the largest step in the GFR range; smaller 200/300/400 sizes cover 1/8 in to 3/4 in ports. The automatic drain suits points where nobody will regularly pull the drain, while manual and differential-pressure drains remain available elsewhere in the family. This unit carries the 5 um element (code W); the 40 um standard grade is the choice where only bulk water and coarse particles matter. The fitted square gauge reads in bar; MPa and psi scales and an external round gauge are the other catalogue choices. Thread is NPT on this code, with PT standard and G available to order, and the included bracket simplifies panel or frame mounting.
Because flow is published as curves rather than 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, not as a single rated figure, so we do not quote a rated flow number. Send us your line pressure, set pressure and expected air demand and we will confirm the sizing from the datasheet curves on request before you order.
The A in the code selects the automatic drain, which expels collected condensate from the aluminium alloy bowl without manual attention, unlike the manual or differential-pressure drain options elsewhere in the family. The W selects the 5 um filter element instead of the 40 um standard grade, giving finer removal of water and particulate. This unit is also the low-pressure regulator type with a square gauge scaled in bar.
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.