The AirTAC GR60020LJF1TK 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 AirTAC GR60020LJF1TK is a genuine AirTAC GR-series air pressure regulator in the largest 600 size, built purely for pressure regulation: it contains no filter, no bowl and no drain. This configuration is the low-pressure type, so the outlet setting range tops out at 0.4 MPa, and it carries a 3/4 in NPT port. An embedded square pressure gauge scaled in MPa is fitted as standard, and the K option adds a reverse (check) valve so downstream pressure cannot push back through the unit. The J option means no mounting bracket is supplied, though the GR body is also panel-mountable. Maximum working (inlet) pressure is 1.0 MPa (145 psi), and the GR temperature range is -20 to 70 C, wider than the rest of the G family.
GR600 is the top of the GR size ladder (200 / 300 / 400 / 600), so it is the step to take when the port and flow path need to be largest. Related options across the series include G (BSPP) and NPT thread variants, gauge scales in MPa, psi or bar, an optional external round gauge, and bracketed or bracket-free bodies. Flow is published by AirTAC as curves rather than a single rated figure, so we confirm the datasheet and flow figures for your application on request.
| Model | GR60020LJF1TK 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, MPa scale |
| Reflux valve | Fitted (reverse flow permitted) |
| 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. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| 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, 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 CNC machining cell where pneumatic clamps and fixtures must be held at a gentle, closely limited pressure, this low-pressure GR600 regulator sets and holds the outlet at up to 0.4 MPa, with the fitted check valve stopping back-flow from the circuit into the supply line.
Blow-off and air knife stations on packaging or drying lines run best at modest, stable pressures. This 3/4 in low-pressure regulator steps the shop air down to the low setting the nozzles need, and the MPa-scaled square gauge lets operators see the setting at a glance.
Pushers, diverters and gating cylinders on a conveyor or packaging line often need soft, low-pressure actuation to avoid product damage. This GR600 unit regulates that branch of the main at low pressure, with the reverse valve protecting the setting from downstream surges.
Start with the port: the 20 code gives 3/4 in, the largest step in the GR line, and the right choice when the machine's air main and cylinder demand are at the top of the range. Because this is the L (low-pressure) type, select it only where the working pressure you need to hold is up to 0.4 MPa; if your process must set higher, the standard GR type with its wider adjustment range is the correct pick instead. The fitted square gauge reads in MPa; psi and bar scales are catalogue options if your team works in those units. Thread is NPT here, ordered as a catalogue option - PT is the standard thread, and G (BSPP) is also available. The K reverse/check valve is already fitted; choose it whenever back-flow through the regulator must be prevented. A bracket is not included with this J-coded unit, but GR is panel-mountable. Because AirTAC publishes GR flow as curves and not as a single rated number, ask us to confirm sizing from the datasheet against your application before ordering.
Quick checklist
The reflux valve lets air flow back through the regulator, which is useful when downstream volume must vent quickly. A regulator does not remove water or particulate; that is the filter's job.
AirTAC publishes GR-series flow as performance curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number for this regulator. Ask us and we will confirm the datasheet and the flow curve for the GR600 size against your application before you order.
The L in the code marks the low-pressure type of the GR family, whose adjustment range tops out at 0.4 MPa; it is chosen for circuits that must never be set high. If you need settings above that, the standard GR type is the correct variant. The fitted square gauge on this unit is scaled in MPa, and psi or bar scales are catalogue options.
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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.