The AirTAC GFR600C25LJF3WTK 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 GFR600C25LJF3WTK is an AirTAC GFR-series filter regulator: one body that removes water and particulate from compressed air and holds downstream pressure. This size 600 unit carries a 1 in NPT port, a 5 um filter element (the finer of the two published grades), a differential-pressure drain, and the low-pressure regulator type. A square pressure gauge scaled in bar is fitted, and a reverse (check) valve is built in. Maximum working pressure is 1.0 MPa (145 psi), operating temperature is -5 to 70 C non-freezing, and the size 600 bowl is aluminium alloy. The unit is supplied without a mounting bracket (code J).
This is a genuine AirTAC part. The GFR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in up to 1 in, PT as the standard thread and G or NPT as order options, with drain, filter grade, gauge scale and bracket choices to match the unit to your line. AirTAC publishes flow as curves rather than a single rated figure, so ask us to confirm sizing and datasheet figures for your application before ordering.
| Model | GFR600C25LJF3WTK 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) |
Feeding clean, moisture-reduced and pressure-controlled air to a large press or forming cylinder circuit, where the 1 in port and 5 um element condition the main supply before it reaches the valve stack.
Conditioning the air feeding a multi-cylinder packaging or cartoning line, where stable low-pressure regulation protects downstream valves and actuators and the check valve holds settings against supply dips.
Supplying filtered, regulated air to blow-off nozzles and air knives on a production line, where the operator sets a low working pressure at the square bar gauge and condensate drains by differential pressure.
Choose the size by required flow: the 200, 300, 400 and 600 steps pair with ports from 1/8 in up to 1 in, and this unit sits at the top of the range with a 1 in NPT port. Drain options are differential-pressure (fitted here), automatic (A) or manual (M); filter grade is 40 um standard or 5 um with code W, which this unit carries. Gauge choices are the embedded square gauge (MPa, psi or bar scales - bar here) or an external round gauge, and the low-pressure type (L) suits circuits that run below standard regulator ranges. Thread is PT as standard with G and NPT as order options, and brackets are optional (this configuration has none). Because flow is published as curves rather than a single rating, send us your flow and pressure requirements and we will confirm the right size 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, not as a single rated figure, so we do not quote a rated flow number. Send us your required flow and working pressure and we will confirm the sizing against the datasheet curves on request before you order.
The L code marks the low-pressure regulator variant, intended for circuits that run below the standard regulator range. The exact adjustment range for this low-pressure type is not published in the material we hold, so confirm your setpoint with us on request and we will verify it against the datasheet.
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.