The AirTAC GR20008LJC3TK AirTAC Low-Pressure Air Regulator NPT1/4 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 PT1/4" 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 GR200 is a compressed-air pressure regulator: it sets and holds a steady downstream pressure and does nothing else - no filtration, no bowl, no lubrication. This GR20008LJC3TK is the low-pressure type, adjustable up to 0.4 MPa, built for circuits that must run below the standard regulator range. It has a 1/4 in NPT port, a round external gauge scaled in bar, and a reverse/check valve fitted so downstream pressure is held if the supply drops. No mounting bracket is included on this variant.
This is a genuine AirTAC part. The GR series spans sizes 200 to 600 with ports from 1/8 to 1 in, and options include standard or low-pressure regulation, square or round gauges with MPa, psi or bar scales, PT, G or NPT threads, bracket or no bracket, and a reverse/check valve. Flow for this series is published as curves rather than a single rating, so we confirm the datasheet figures on request.
| Model | GR20008LJC3TK AirTAC Low-Pressure Air Regulator NPT1/4 |
|---|---|
| Series | GR200 pressure regulator |
| Port size | PT1/4" (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 | 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.
| GR200 | G-series pressure regulator, 200 body — sets the port range. |
|---|---|
| 08 | Port size PT1/4". This body offers 06 = PT1/8", 08 = PT1/4". |
| 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. |
| 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 | GR200 · PT1/4" · 0.05 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size up | GR300 |
| Line order | Filter first, then regulator, then lubricator |
Set a gentle, stable holding pressure on a pneumatic clamp or jig on a machining cell, where the fixture must never be squeezed above 0.4 MPa and the check valve holds the setting if supply dips.
Regulate the atomizing air feed to spray nozzles in a small coating or finishing booth, keeping nozzle pressure low and steady for an even finish.
Feed the sealing bar or light actuation circuit of a packaging machine with controlled low-pressure air, protected against supply backflow by the fitted check valve.
Start with the port: this GR200 unit is the 1/4 in size; step up to GR300, GR400 or GR600 when the line needs a larger port and more flow. Choose the low-pressure type (L) only when the circuit must be set at or below 0.4 MPa - the standard GR type adjusts from 0.05 to 0.9 MPa. Pick the gauge you want to read: this unit carries a round gauge in bar, while square gauges and MPa or psi scales are catalogue options. Thread is NPT here; PT (the standard) and G are orderable alternatives. A bracket can be added if you are not panel-mounting, and the reverse/check valve is already fitted on this code. Flow is published as curves, not a single rating, so ask us to confirm sizing 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 curves, not as a single rated figure, so we do not quote a number here. Tell us your supply pressure and downstream demand and we will confirm the correct size and the datasheet flow figures on request.
L marks the low-pressure regulator type: this unit adjusts up to 0.4 MPa. It is for circuits that run below the standard GR range of 0.05-0.9 MPa. If your line needs up to 0.9 MPa, order the standard-type GR200 code instead.
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.