The AirTAC GR60020LJF3TK 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 GR60020LJF3TK is an AirTAC GR-series air pressure regulator, and regulation is all it does: it holds a steady downstream pressure from your compressed-air supply, with no filter element and no bowl to drain. This is the size-600 unit, the largest in the GR range, with 3/4-inch NPT ports. It is the low-pressure type, so its adjustment range tops out at 0.4 MPa, and it carries the K option: a reverse (check) valve fitted so downstream air cannot push back through the unit. The embedded square gauge is included with a bar scale, and the J code means no mounting bracket is supplied, suiting panel or direct-line mounting. 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 port sizes from 1/8 to 1 inch, in standard and low-pressure types, with your choice of thread (PT standard, G and NPT as order options), gauge scale (MPa, psi or bar), reverse valve and bracket. We do not quote a single rated flow figure because AirTAC publishes flow as curves; ask us and we will confirm the datasheet figures for your application before you order.
| Model | GR60020LJF3TK 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 | 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. |
| 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. |
| 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 |
Set a stable low supply pressure feeding the pneumatic clamp and lift cylinders on a bottling or canning line, with the check valve holding the setting against upstream surges.
Regulate the low-pressure air feeding air knives that strip rinse water from parts or bottles on a conveyor, where the 3/4-inch NPT ports match the larger supply piping in the drying zone.
Mount directly on a machine's pneumatic control panel to give operators a bar-scaled setpoint for a low-pressure circuit, with no bracket needed and the square gauge read at a glance.
Start with the port step: size 600 with 3/4-inch NPT ports suits lines where larger piping is already run, and the right way to choose between 200/300/400/600 is against the flow your line needs - which is published as curves, not a single rating, so send us your demand and we will confirm sizing from the datasheet. This unit is the L (low-pressure) type with adjustment up to 0.4 MPa; if your setpoint sits above that, the standard GR type is the correct pick instead. The F3 code gives you the embedded square gauge with a bar scale (MPa and psi scales are also available), and the K code adds a reverse/check valve where backflow would be a problem. Thread is NPT here; PT is the standard and G is also an order option. The J code means no bracket - the GR is also panel-mountable if you prefer that to in-line installation.
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.
We do not quote a single rated flow number, because AirTAC publishes GR flow as performance curves rather than one figure. Send us your line demand (and your supply pressure and setpoint) and we will confirm the datasheet flow figures for this size-600, 3/4-inch NPT unit before you order.
The L code in GR60020LJF3TK means the adjustment range tops out at 0.4 MPa, which suits circuits that must never see high pressure. If your setpoint needs to go higher, the standard GR type adjusts up to 0.9 MPa - ask us for the standard-type equivalent in the same size 600, 3/4-inch NPT configuration.
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.