The AirTAC GFR600C25ALJC1WTK AirTAC 1 in NPT Filter Regulator 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 GFR600C25ALJC1WTK is a size-600 filter regulator that removes water and particulate from compressed air and regulates downstream pressure in a single 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, and an external round gauge scaled in MPa is fitted so the set pressure can be read at a glance. A reverse/check valve is included, and the unit is supplied without a mounting bracket. The metal bowl on this size-600 unit is aluminium alloy, and the maximum working (inlet) pressure is 1.0 MPa (145 psi) with an operating temperature range of -5 to 70 C, non-freezing.
This is a genuine AirTAC part. The GFR filter-regulator family is available in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, in PT (standard), G and NPT threads, with a choice of differential-pressure, automatic or manual drains, 40 um or 5 um filter grades, standard or low-pressure regulation, gauge options and scale choices, and with or without a bracket and reverse/check valve. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GFR600C25ALJC1WTK AirTAC 1 in NPT Filter Regulator |
|---|---|
| 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, spray equipment needs air stripped of water and fine particulate and held at a steady, modest pressure. This filter regulator conditions the drop line to the booth, its 5 um element protecting finish quality while the low-pressure regulator holds the gun supply steady.
Pneumatic pushers, diverters and clamps along a packaging conveyor need clean, regulated air at the manifold. Fed from a 1 in main header, this unit filters the supply, holds the circuit pressure for consistent cylinder stroke behaviour, and drains condensate automatically between shifts.
Automated butterfly and diaphragm valves in a treatment plant are actuated by air that must be dry, clean and held at a controlled low pressure so seat loading stays consistent. This unit conditions the branch feeding the actuator panel, with the MPa gauge giving operators a visible setpoint.
Choose the size and port step against the air consumption of the line: this unit is size 600 with a 1 in NPT port, the largest step in the GFR range, intended for main-air supply where smaller ports would restrict flow. The 5 um element (code W) suits downstream equipment that needs finer filtration than the standard 40 um grade; the automatic drain suits points that are hard to reach or that run unattended, while manual and differential-pressure drains remain available elsewhere in the family. The low-pressure regulator type is selected where the working pressure sits at the lower end of the range; its exact adjustment range is not published, so confirm it with us. The fitted round gauge reads in MPa, with psi and bar scales available as options. PT is the standard thread, while G and NPT are catalogue options ordered by suffix - this unit carries the NPT option. A bracket can be added if panel or wall fixing is needed; this configuration omits it.
One honest note on sizing: flow for this family is published as curves, not as a single rated figure, so we do not quote a rated flow number. Send us your application details and we will confirm the datasheet figures and check the sizing against your consumption 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 rated flow number for this unit. Because it is a size-600 filter regulator with a 1 in port, it sits at the top of the family's flow range, but the actual figure depends on your inlet pressure and allowable pressure drop. Ask us and we will confirm the datasheet flow curves and check the sizing against your application before you order.
This configuration carries code A, meaning an automatic drain that expels collected condensate from the bowl on its own - useful for unattended or hard-to-reach installations. The GFR family is also available with a manual drain (code M) or the differential-pressure drain that is the family default, so you can choose the drain behaviour that matches how the installation is serviced. Note that the regulator adjustment range differs by drain type on the standard version, and this unit is the low-pressure type, whose exact range we confirm on request.
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.