The AirTAC GFR60020LJF2T AirTAC Filter Regulator NPT3/4 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 PT3/4" 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 GFR60020LJF2T is an AirTAC GFR-series filter regulator: water and particulate filtration plus pressure regulation combined in one body. This size-600 unit is built for 3/4 in NPT ports, carries the standard 40 um filter element, and drains condensate by differential pressure, so the bowl empties as the pressure differential across the element builds. It is the low-pressure (L) type, intended for circuits that run below the standard regulator band. The aluminium alloy bowl suits the larger 600 frame, an embedded square gauge with a psi scale is fitted, and no mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi) and the working 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 options include manual or automatic drains, a 5 um (W) element, G (BSPP) or NPT threads in place of the PT standard, gauge scale choices, a reverse/check valve, and bracket variants. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GFR60020LJF2T AirTAC Filter Regulator NPT3/4 Low-Pressure |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT thread) |
| Filtering grade | 40 µm |
| Regulating range | 0.15 - 0.9 MPa (20 - 130 psi) |
| Pressure type | Low-pressure 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 — square, psi 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. The low-pressure type adjusts over a lower band than standard; we confirm the exact figures from the factory datasheet. 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. |
|---|---|
| 20 | Port size PT3/4". 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)). |
| L | Low-pressure type. Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | Filtering grade 40 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT 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 · PT3/4" · 40 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
On a CNC machining cell where workholding clamps run at reduced line pressure, this filter regulator cleans the shop air and holds the set pressure to the clamp cylinders, with the psi gauge giving the operator a direct read at the cell.
For a water-treatment or chemical dosing skid using air-piloted process valves, the unit filters the supply air and regulates it to the actuator pressure the valve maker specifies, with the differential-pressure drain keeping condensate out of the pilot circuit.
Feeding the air cylinders and diverters on a packaging conveyor line, the 3/4 in port matches the main drop, the 40 um element stops pipe scale and water reaching the cylinders, and the low-pressure type suits lines run below standard plant pressure.
Start with the port and frame: this unit is the size-600 step with a 3/4 in NPT thread, the right choice when your line is plumbed at 3/4 in and you want the larger frame behind it. The 40 um element is the standard grade for general plant air; choose the 5 um (W) variant only if downstream equipment needs finer filtration. The differential-pressure drain works without attention, but if your compressor cycles heavily or the unit sits in a hard-to-reach spot, an automatic (A) or manual (M) drain version may suit better. The fitted square gauge reads in psi; MPa and bar scales are also available, and an external round gauge is an option. If your thread standard is PT or G (BSPP) rather than NPT, order the matching suffix. Note that this configuration ships without a mounting bracket; a bracket variant exists if you want the unit panel-fixed. Because AirTAC publishes flow as curves rather than a single rated figure, send us your flow and pressure requirements and we will confirm sizing against the datasheet 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 there is no one rated flow number we can quote. Send us your required flow and working pressure and we will confirm the sizing against the datasheet on request before you order.
The blank drain position in the code means the differential-pressure drain, which releases collected condensate automatically as the pressure drop across the 40 um element builds. If you prefer an automatic (A) or manual (M) drain, those are catalogue options on the same size-600 frame and can be ordered as a different suffix.
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.