The AirTAC GR60020LJF1T AirTAC Low-Pressure Air 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 GR series is a dedicated air pressure regulator: it reduces and holds a stable downstream pressure from a compressed-air supply, and it does nothing else - no filtration, no bowl, no lubrication. This configuration, GR60020LJF1T, is the 600 size with a 3/4 in NPT thread, built as the low-pressure type with an adjustment range up to 0.4 MPa. The trailing F1 code means the embedded square pressure gauge is fitted with an MPa scale, and the J code means no mounting bracket is included; the GR body is also panel-mountable. Maximum working (inlet) pressure is 1.0 MPa (145 psi), and the GR series carries the widest temperature window in the G family at -20 to 70 C.
This is a genuine AirTAC part, sold by an authorised distributor. The GR line spans the 200, 300, 400 and 600 sizes with port sizes from 1/8 in to 1 in, in standard or low-pressure (L) versions, with or without gauge, bracket or reverse/check valve, and in PT, G or NPT thread. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the flow and datasheet figures for your application on request.
| Model | GR60020LJF1T AirTAC Low-Pressure Air 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 | 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. |
| 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. |
| (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 |
Packaging machines often clamp cartons or hold product with air actuators that work best at gentle pressures well below a standard regulator's typical setting. This low-pressure GR holds a soft, steady downstream pressure so delicate clamping jaws grip without crushing, with the MPa-scale square gauge giving the operator a clear setpoint readout.
Spray guns, atomising nozzles and coating applicators need a closely held, low air pressure to break fluid into a consistent mist. Fed from the shop air line through this 3/4 in NPT regulator, the operator dials in the atomising pressure on the embedded gauge and the unit holds it steady as demand fluctuates through the shift.
Blow-off nozzles that clear dust or dry parts on a conveyor run best at low, stable pressure - too high and parts shift or scatter. This low-pressure regulator sits in the 3/4 in NPT supply to the jet manifold, letting the line set a gentle, repeatable air pressure that clears debris without disturbing the product.
Start with the port step: the 600 size is the largest in the GR range and takes the bigger ports (3/4 in here, 1 in at code 25), so size up when your circuit needs more air - the published flow curves, not a single rating, are the honest way to match size to demand, and we will confirm sizing against your application before you order. Then set the pressure class: this unit is the L low-pressure type with adjustment up to 0.4 MPa; if your circuit needs the full 0.05-0.9 MPa range, choose the standard GR version instead. Remaining decode choices: gauge scale (MPa, psi or bar, embedded square as standard or an external round gauge), thread (PT is the standard; G and NPT are order options - this unit is NPT), and bracket (J means none fitted; the GR is also panel-mountable). A K-suffix option adds a reverse/check valve if you need one; this unit does not have it.
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 regulator flow as curves, not as a single rated number, so we do not quote a flow figure here - and we will not guess one. Send us your application details (supply pressure, required downstream pressure and approximate air demand) and we will confirm the flow and datasheet figures for this 600-size, 3/4 in NPT unit on request before you order.
The L code in GR60020LJF1T means this is the low-pressure version of the GR regulator, with an adjustment range up to 0.4 MPa - suited to circuits that run gentle, stable pressures. If your application needs the full standard range (0.05-0.9 MPa), order the standard GR600 in the same size and thread instead; the L suffix is simply omitted on that version.
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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.