The AirTAC GFR600C25ALF1WTK 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 GFR600C25ALF1WTK is a size-600 filter regulator: it removes water and particulate from compressed air and regulates downstream pressure in one body. This configuration is built around a 1 in NPT port for high-flow main lines, a 5 um filter element (code W) for finer filtration than the standard 40 um grade, and an automatic drain that expels collected condensate without manual attention. The regulator is the low-pressure type, an embedded square gauge scaled in MPa is fitted, and a reverse/check valve (code K) is installed to hold downstream settings when upstream supply is lost. As a size-600 unit, the bowl is aluminium alloy. Maximum working (inlet) pressure is 1.0 MPa (145 psi) and the operating 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 is ordered with choices of drain type, filter grade, gauge style and scale, thread (PT standard, with G and NPT as options), bracket and reverse valve. Rated flow for this series is published as curves rather than a single figure, so ask us to confirm flow and datasheet details for your application before ordering.
| Model | GFR600C25ALF1WTK 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) |
On a paint-line air drop, the 5 um element strips water and fine particulate that would defect a finish, while the low-pressure regulator holds a gentle supply to the spray station. The automatic drain keeps condensate off the line without an operator walking the drop.
A packaging conveyor's pneumatic pushers and clamps need clean, steady air at a modest set pressure. This unit filters and regulates at the line take-off, and the reverse/check valve holds the downstream setting during brief supply dips so the cycle does not drift.
On a machining cell, fixture clamps fed from a 1 in main get filtered, regulated air from this unit at the cell drop. The embedded MPa gauge gives the setter a direct read of clamp pressure, and the automatic drain protects the circuit between shifts.
Size and port are the first choice: the 600 frame with a 1 in port suits high-flow trunk lines, while smaller GFR sizes cover lighter duty - match the step to the flow your line actually needs. This unit carries the 5 um element (W) rather than the standard 40 um grade, an automatic drain rather than manual or differential-pressure, and the low-pressure regulator type - the exact set-pressure range for the low-pressure version is not published, so confirm it with us. The fitted square gauge reads in MPa; external round gauges and psi or bar scales are alternatives. Thread here is NPT (PT is the catalogue standard, G and NPT are order options), the mounting bracket is included, and the reverse/check valve is fitted.
On sizing: flow for the GFR series is published as curves, not a single rated number, so we do not quote a figure here. Send us your application details and we will confirm the flow and datasheet figures against your requirement 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 we do not quote a number here. Tell us your line conditions and we will confirm the flow and datasheet figures for this exact 1 in NPT, size-600 configuration on request.
Both are decode choices in the model code: A is the automatic drain, which ejects collected condensate on its own instead of relying on manual or differential-pressure draining, and W selects the 5 um filter element instead of the standard 40 um grade. Choose 5 um where downstream equipment is sensitive to finer contamination; the automatic drain suits points that are not checked daily.
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.