The AirTAC GFR600C25ALJNT AirTAC Filter Regulator NPT 1 in 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 GFR600C25ALJNT is an AirTAC GFR-series filter regulator: water and particulate filtration plus pressure regulation in a single body. This 600-size unit is built around a 1 in NPT port, so it sits directly in a 1 in compressed-air line where one component must both clean the air and hold a set downstream pressure. The 40 um standard element removes the common water droplets and pipe-scale particles that shorten the life of valves and actuators, the automatic drain expels collected condensate from the bowl without anyone opening it, and the low-pressure regulator type is intended for circuits that run at reduced working pressure rather than full line pressure. No gauge is fitted with this configuration, and no 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, a choice of automatic, manual or differential-pressure drains, a 5 um (code W) element option, gauge and bracket options, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GFR600C25ALJNT AirTAC Filter Regulator NPT 1 in 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) |
On a stamping or forming press fed from a plant ring main, a 1 in filter regulator at the machine drop cleans the supply and holds a reduced working pressure for the clamping and ejection cylinders, with automatic drain keeping condensate off the shop floor.
Filling, capping and conveyor sections on a beverage line run at modest working pressures; a low-pressure-type filter regulator at each 1 in section drop removes water and pipe debris and holds the set pressure without a manual drain round.
Looms and spinning frames use many small jets and cylinders sensitive to dirt and moisture; a 40 um filter regulator with automatic drain on the machine's main air inlet protects the whole pneumatic circuit in one component.
Start with the port step: this unit is the 600 size with a 1 in NPT port, the largest in the GFR range, so match it to a 1 in line and check that the pipe size suits the air demand of the circuit. Because flow in this series is published as curves and not as a single rated number, ask us to confirm sizing against your application before ordering. The drain here is automatic, which suits unattended or hard-to-reach installations; manual and differential-pressure drains are the alternatives in the family. The 40 um element is the standard grade, and a 5 um element (code W) is available where finer filtration is needed. This is the low-pressure regulator type, intended for circuits that operate at reduced working pressure; its exact adjustment range is not published, so confirm it with us. No gauge is fitted on this configuration, and a bracket is not included. PT is the standard thread for the series, with G and NPT as order options - this unit is the NPT version.
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 number here. Tell us your line pressure and the air demand of your equipment and we will confirm the flow and sizing from the datasheet on request before you order.
The code N in GFR600C25ALJNT means no pressure gauge is supplied with this configuration, and no mounting bracket is included either. The regulator is still fully adjustable; if you want a fitted indication, the GFR range also comes in configurations with an embedded square gauge or an external round gauge, in MPa, psi or bar scales - ask us for that variant.
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.