The AirTAC GFR600C25ALNWTK AirTAC Filter Regulator 1 in NPT 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 AirTAC GFR600C25ALNWTK is a size-600 filter regulator: water and particulate removal plus pressure regulation combined in a single body. This configuration is built for 1 in NPT ports, filters to 5 um (the fine grade, code W), and drains condensate automatically, so it suits lines where regular manual draining is impractical. It is the low-pressure type, carries a reverse/check valve, and no gauge is fitted. The size-600 bowl is aluminium alloy, and a 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 to 1 in, and options across drain type, filter grade (40 um standard, 5 um optional), gauge and scale, thread (PT standard, G and NPT to order), bracket and reverse valve. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application.
| Model | GFR600C25ALNWTK AirTAC Filter Regulator 1 in NPT |
|---|---|
| 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) |
Feeding low-pressure air to spray booths and guns on an automotive paint line, where 5 um filtration protects finish quality and the automatic drain keeps condensate out of the supply without daily attention.
Conditioning the 1 in main feeding pneumatic cylinders and grippers on a beverage bottling conveyor, with the check valve holding downstream pressure if the upstream supply dips.
Filtering and regulating air to looms and winding machines in a textile plant, where the low-pressure type regulator and automatic drain suit long, unattended production runs.
Start with the port step: this unit is 1 in NPT on the size-600 body, the largest GFR frame, so check your line size and required flow before stepping down. Drain choice matters: automatic drain (this unit) handles condensate without attention, manual drain suits attended installations, and differential-pressure drain is the default. Filter grade is 5 um here versus the 40 um standard - choose 5 um where downstream equipment needs finer air. Note this is the low-pressure type and no gauge is fitted; if you need a local pressure readout, select a gauge variant. Thread options are PT standard with G (BSPP) and NPT as orderable variants, and a bracket is included.
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 rather than a single rated figure, so we do not quote a number. Tell us your line pressure and the flow your application needs, and we will confirm against the datasheet whether this 1 in size-600 unit is correctly sized before you order.
This configuration is ordered without a gauge (code N), so no pressure gauge is supplied; gauge variants with different scales are available in the GFR range if you need a local readout. The automatic drain expels collected condensate from the 5 um filter bowl on its own, so the unit does not need to be drained manually on a schedule.
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.