The AirTAC GR60020LJC3T AirTAC Air Regulator NPT3/4 Low-Pressure 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 GR60020LJC3T is an AirTAC GR-series air pressure regulator: it does one job, holding a steady downstream air pressure from a compressed-air supply. This is the 600 size, the largest in the GR line, with a 3/4 in NPT port. The L in the code marks the low-pressure type, so its adjustment range tops out at 0.4 MPa instead of the standard GR range - the right choice for circuits that must never see full line pressure. The C3 suffix specifies an external round gauge with a bar scale, and J specifies that no mounting bracket is supplied; the unit can still be panel-mounted. 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 series spans sizes 200 to 600 with port sizes from 1/8 in to 1 in, in standard and low-pressure types, with your choice of gauge scale, thread (PT standard, G and NPT as order options) and bracket. AirTAC publishes flow for this series as curves rather than a single rated figure, so ask us and we will confirm the datasheet and flow figures for your application on request.
| Model | GR60020LJC3T AirTAC Air Regulator NPT3/4 Low-Pressure |
|---|---|
| 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 — round, 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). |
| C | Gauge shape: Round. 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 |
Feeds the cap-tightening and tray-forming stations of a bottling hall from a 3/4 in main, with the low-pressure type capping downstream pressure at 0.4 MPa so delicate actuators cannot be over-driven.
Sits ahead of the solenoid valves on a clarifier's knife-gate actuators, holding a gentle, steady setting on a 3/4 in NPT branch so the gates seat without slamming.
Regulates the low-pressure air cushion to the unwind brake and idler rollers of a paper-converting line, where the bar-scaled round gauge lets operators set and re-check the same value each shift.
Step through the real choices in order. First, size and port: 600 with a 3/4 in NPT port suits the largest branch lines in the GR range - match the pipe size and let us check the flow curve against your air demand before you order. Second, regulator type: this unit is the L low-pressure type, adjustable up to 0.4 MPa; if your circuit needs the full 0.05-0.9 MPa range, order a standard GR instead. Third, gauge: this code carries a round external gauge scaled in bar; square embedded gauges and MPa or psi scales are the other decodable options. Fourth, thread: NPT is specified by the trailing T - PT is the catalogue standard and G (BSPP) is also available to order. Finally, the J code means no bracket is supplied; drop the J if you want one. GR is also panel-mountable. We confirm sizing against the flow curve on request.
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 does not publish a single rated flow figure for the GR series; flow is given as curves that depend on inlet pressure, set pressure and port size. We will pull the datasheet and confirm the flow curve for your exact operating conditions on request - just tell us your supply pressure and demanded flow before ordering.
L marks the low-pressure regulator type. Its adjustment range tops out at 0.4 MPa, versus 0.05-0.9 MPa for the standard GR. Choose this code when the downstream circuit must never be set above 0.4 MPa; if you need the full range, order a standard GR600 with the same port and gauge options. 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.