The AirTAC GR60020LJC2GK AirTAC Low-Pressure Regulator G3/4 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 GR60020LJC2GK is an AirTAC GR600 air pressure regulator, a regulation-only unit: it controls downstream air pressure and does not filter or lubricate. This is the low-pressure type, set up for applications that must hold a reduced pressure below the standard range, with a maximum inlet pressure of 1.0 MPa (145 psi). The 600 size is the largest in the GR range and this unit is decodes to G3/4 (3/4 in) ports with G (BSPP) thread. The code confirms a round external gauge with psi scale, a built-in reverse (check) valve that holds downstream pressure if the supply drops, and no mounting bracket - the GR600 can be panel-mounted instead. As a regulator it has no bowl and no drain. Operating temperature is -20 to 70 C, wider than the rest of the G-series.
This is a genuine AirTAC part. The GR family is available in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, in standard and low-pressure types, with or without a gauge (square embedded or external round, in MPa, psi or bar scales), with an optional reverse/check valve, with or without a bracket, and in PT, G or NPT threads. Flow for this size is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GR60020LJC2GK AirTAC Low-Pressure Regulator G3/4 |
|---|---|
| Series | GR600 pressure regulator |
| Port size | PT3/4" (G (BSPP) 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 — round, psi 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| G | G (BSPP) 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 carton-sealing or wrapping machine where actuators are specified for a reduced supply pressure, the low-pressure type holds the downstream setting in the sub-0.4 MPa band, and the check valve keeps the setting if the main supply dips during a machine stop.
Spray and coating booths need a steady, moderate reduced pressure at the point of use. A 3/4 in regulator at the line take-off sets the working pressure for the booth circuit, with the psi-scaled round gauge giving operators a clear local readout.
In a control cabinet or manifold panel where a bracket is not used, the GR600 panel-mount arrangement lets the regulator sit flush on the panel with G3/4 piping behind it, feeding a low-pressure circuit from a higher-pressure main.
Start with the port step: the GR600 with G3/4 (3/4 in) ports is the largest GR frame, chosen when line size and demand point to the top of the range - match the frame to the pipe and the air demand of the circuit, and we will confirm the flow curve against your application before you order. Next, pick the regulator type: this unit is the low-pressure (L) type, which regulates up to 0.4 MPa - choose it when your working pressure sits in that lower band; the standard type covers the full 0.05-0.9 MPa range. Decide on the gauge: this configuration carries an external round gauge on the psi scale, and square embedded gauges in MPa, psi or bar scales are also available. Choose the thread to suit your piping - PT is the standard, with G (BSPP) and NPT as orderable options - and whether you want a bracket (this unit has none; the GR is also panel-mountable) or a reverse/check valve, which is fitted here.
One honest note on sizing: AirTAC publishes regulator flow as curves, not a single rated number, so we do not quote a flow figure here. Send us your application details and we will confirm the datasheet and the right size before you order.
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 regulator flow as performance curves, not as a single rated figure, so there is no one flow number we can quote for this unit. Tell us your inlet pressure, set pressure and the air demand of the circuit, and we will confirm the datasheet and check the GR600 curve against your application before you order.
The L in the code GR60020LJC2GK marks the low-pressure type, which regulates downstream pressure up to 0.4 MPa. Choose it when the working pressure of your circuit sits in that lower band. If you need the full standard adjustment range up to 0.9 MPa, the same GR600 frame is available without the L code. Maximum inlet pressure is 1.0 MPa (145 psi) either way.
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.