The AirTAC GR60020LJF3T AirTAC Air Pressure Regulator NPT3/4 is a genuine G-series air pressure regulator. It holds a stable downstream pressure over the range 0.05 - 0.4 MPa (7 - 58 psi) with PT3/4" ports, and ships with a pressure gauge. A regulator does not filter the air — put a GF filter upstream, or use a GFR filter regulator, when water and particulate must also be removed.
The GR60020LJF3T is an AirTAC GR-series air pressure regulator in the large size 600 body with a 3/4 in NPT port. This is the low-pressure (L) type, so its adjustment range goes up to 0.4 MPa, and it carries the embedded square gauge with a bar scale. It is a regulation-only unit: it sets and holds downstream air pressure and contains no filter, no bowl and no drain, so it is normally placed after filtration in the air-preparation line. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -20 to 70 C, wider than the rest of the G family.
This is a genuine AirTAC part. The GR line spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, in standard and low-pressure types, with or without gauge and bracket, and with PT as the standard thread or G (BSPP) and NPT as order options. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GR60020LJF3T AirTAC Air Pressure Regulator NPT3/4 |
|---|---|
| Series | GR600 pressure regulator |
| Port size | PT3/4" (NPT thread) |
| Regulating range | 0.05 - 0.4 MPa (7 - 58 psi) |
| Pressure type | Low-pressure type |
| Bracket | Supplied without bracket |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -20 to +70 °C |
| Pressure gauge | Fitted — square, bar scale |
| Reflux valve | Not fitted |
| Mounting | Panel mounting; optional fixing bracket |
Specifications follow the official AirTAC G-series air-preparation data. Note the GR temperature range is -20 to +70 °C, wider than the other G-series units. A regulator has no bowl and no filter element, so there is no filtering grade. Flow curves, weight and outline dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
| GR600 | G-series pressure regulator, 600 body — sets the port range. |
|---|---|
| 20 | Port size PT3/4". This body offers 20 = PT3/4", 25 = PT1". |
| L | Low-pressure type — 0.05 - 0.4 MPa (7 - 58 psi). 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. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| 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, type, bracket, gauge, gauge shape, scale, thread, reflux — a blank position takes the default. Example: GR300-08LNK is a 300 body, PT1/4", low-pressure type, no gauge, with 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 rather than from a single rated figure.
| This model | GR600 · PT3/4" · 0.05 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size down | GR400 |
| Line order | Filter first, then regulator, then lubricator |
On a machining fixture or jig that holds workpieces with air clamps, this regulator sets a gentle, stable holding pressure below 0.4 MPa so soft or thin parts are gripped without damage.
In a paint or coating booth, the unit regulates the atomising air line to a low set pressure, giving the operator a repeatable setting at the gun manifold on a 3/4 in supply.
On a cartoning or wrapping machine with larger-bore air cylinders, this size 600 regulator holds the supply pressure steady for smooth, consistent actuator strokes across the shift.
Start with the port and size step: this unit is size 600 with a 3/4 in NPT port, the largest step in the GR range, chosen when line size and demand are at the top of the family. The low-pressure (L) type suits circuits that must be set below the standard range, with adjustment up to 0.4 MPa. The square gauge fitted here reads in bar; psi and MPa scales are the alternative gauge options, and an external round gauge is also available. Thread is NPT on this code; PT is the catalogue standard and G (BSPP) is an order option. The J code means no mounting bracket is fitted, and GR is also panel-mountable. Flow for the GR series is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
Quick checklist
Without a reflux valve, air cannot flow back through the regulator — order the K option if reverse flow is required. A regulator does not remove water or particulate; that is the filter's job.
AirTAC publishes GR-series flow as curves, not as a single rated figure, so we do not quote a l/min, m3/h or SCFM number. Tell us your line size and demand and we will confirm the sizing from the datasheet on request.
The L makes this the low-pressure type, with adjustment up to 0.4 MPa instead of the standard GR range. The F3 gives it the embedded square gauge with a bar scale; psi and MPa scales are available as options on other codes.
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.