The AirTAC GFR600-20LJF2WTK AirTAC Filter Regulator 3/4in NPT 5um is a genuine G-series filter regulator: water separation, 5 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 AirTAC GFR600-20LJF2WTK is a size-600 filter regulator: water and particulate removal plus pressure regulation combined in a single body. This configuration is built with a 3/4 in NPT port, a 5 um filter element (code W), a differential-pressure drain, and the low-pressure regulator type for circuits set to lower working pressures. It ships as coded with an embedded square gauge reading in psi and a reverse/check valve fitted, and no mounting bracket. The size-600 bowl is aluminium alloy. 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, a choice of 40 um standard or 5 um fine filtration, differential-pressure, automatic or manual drains, standard or low-pressure regulation, gauge and scale options, PT (standard), G or NPT threads, and optional brackets. Flow figures are published as curves rather than a single rating, so ask us to confirm sizing and datasheet details for your application before ordering.
| Model | GFR600-20LJF2WTK AirTAC Filter Regulator 3/4in NPT 5um |
|---|---|
| Series | GFR600 filter regulator |
| Port size | PT3/4" (NPT thread) |
| Filtering grade | 5 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 | Fitted (reverse flow permitted) |
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. |
| W | Filtering grade 5 µm. Only 40 µm (blank) and 5 µm (W) exist. |
| T | NPT thread. PT is the default; G is BSPP and T is NPT. |
| K | Reverse-flow (reflux) valve fitted. |
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" · 5 µm |
|---|---|
| One size down | GFR400 |
| Add lubrication | GFC600-20 (two-unit set) |
Feeding clamps and fixtures on a CNC machining centre: the 3/4 in NPT port carries the cell's main air branch, the 5 um element keeps swarf-laden shop air from fouling valve seats, and the low-pressure regulator holds the lower clamp pressure the fixtures are set to.
Supplying the sealing jaws and forming cylinders on a carton or blister packaging line, where the filter stage removes water that would mark film and the regulator holds a steady, lower working pressure so seals stay consistent across the shift.
Conditioning the air feeding spray guns and atomising nozzles in a paint or coating booth: the 5 um grade reduces particulate carry-over into the finish, the differential-pressure drain keeps condensate moving out of the bowl, and the psi gauge gives operators a visible setpoint.
Start with the port step: size 600 carries the largest ports in the GFR range, and this unit is 3/4 in NPT, so match it to the branch where your highest air demand sits. The 5 um element (code W) is the finer of the two published grades - choose it ahead of the 40 um standard element when downstream equipment is sensitive to finer particles; water separation and drainage behaviour are unchanged in principle, only the filtration grade differs. The differential-pressure drain is the default: it bleeds condensate automatically in response to the pressure differential across the element, with no operator attention, while automatic (A) and manual (M) drains remain available elsewhere in the family. The L code selects the low-pressure regulator type - its exact adjustment range is not published, so confirm it against your set pressure with us before ordering. The square gauge is embedded and reads psi; external round gauges and MPa or bar scales are options. PT is the standard thread and G or NPT are order options, and brackets are optional (this code specifies none).
One honest note on sizing: AirTAC publishes flow for this family as curves, not as a single rated figure, so we cannot quote a number here. Send us your application details and we will confirm the flow curve and correct sizing before you order.
Quick checklist
The aluminium-alloy bowl on the GFR600 suits harsher environments than a PC bowl. The reflux valve permits reverse flow through the unit. A filter regulator adds no oil to the line.
AirTAC publishes flow for the GFR family as curves rather than a single rated figure, so we do not quote a number here. Tell us your application - port size, upstream pressure and the equipment you are feeding - and we will confirm the flow curve and correct sizing from the datasheet on request.
L selects the low-pressure regulator type instead of the standard type, for circuits set to lower working pressures. The exact adjustment range for the low-pressure type is not published in the catalogue, so confirm it against your set pressure with us before ordering. Everything else in this code decodes as: 3/4 in NPT port, 5 um element (W), square psi gauge (F2), reverse/check valve (K), no bracket (J), and differential-pressure drain.
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.