The AirTAC GR20008LJC1T AirTAC Air Pressure 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 GR20008LJC1T is an AirTAC GR-series air pressure regulator: it does one job, holding a steady downstream air pressure, and nothing else. There is no filter, no drain bowl and no lubricator in this family. This unit is the 200 size with a 1/4 in NPT port, built as the low-pressure type, so its setting range tops out at 0.4 MPa - suited to circuits that must never see full line pressure. It carries a round pressure gauge on the MPa scale so the set point can be read directly, and it is supplied without a mounting bracket; the GR body is also panel-mountable. 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 the 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, in standard or low-pressure types, with or without gauge and bracket, and with PT, G or NPT threads to order. We confirm flow and datasheet figures on request - flow for this series is published as curves rather than a single rating - so ask us before you finalise a size.
| Model | GR20008LJC1T AirTAC Air Pressure 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, 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.
| 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. |
| 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 | GR200 · PT1/4" · 0.05 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size up | GR300 |
| Line order | Filter first, then regulator, then lubricator |
Packaging machines often use pneumatic clamps and hold-downs that must not be slammed at full line pressure. This low-pressure GR holds the circuit at a gentle, repeatable setting below 0.4 MPa, with the round MPa gauge letting the technician verify the set point at a glance.
Bench and pilot equipment - agitators, pneumatic stirrers, sample conveyors - typically needs a stable, modest air pressure rather than full shop supply. The GR20008LJC1T steps the 1/4 in NPT feed down to a low setting and holds it, with the wider -20 to 70 C range covering unheated rooms and cold stores.
A single-station assembly cell running air cylinders, air guns or small actuators needs one steady pressure for consistent cycle behaviour. Panel-mount the GR at the cell drop, set the working pressure on the MPa gauge, and protect the tooling from swings in the main header pressure.
Start with the port step: the 200 size here takes a 1/4 in NPT port, and larger GR sizes (300/400/600) step up in port and flow capacity, so match the size to the air demand of the circuit rather than to the pipe alone. Because this is the L (low-pressure) type, choose it only where the downstream setting stays at or below 0.4 MPa; for settings up to 0.9 MPa use the standard GR type. The fitted round gauge reads in MPa; psi and bar scales are catalogue options if your team works in those units. Thread is NPT on this code, with PT (the standard) and G available as order options. A bracket can be added or omitted, and the GR can also be panel-mounted.
One honest note on sizing: AirTAC publishes GR flow as curves, not as a single rated figure, so we do not quote a flow number. Send us your application's air demand and we will confirm the correct size against the datasheet before you order.
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 GR-series flow as performance curves rather than a single rated number, so we do not state a flow figure, Cv or SCFM value. Send us your application's air demand and port size, and we will confirm the correct GR size against the datasheet on request before you order.
The L in the code marks the low-pressure type: its setting range tops out at 0.4 MPa instead of the standard GR range. Pick this version when the downstream circuit must be limited to low pressures - for example delicate clamping or process air. If you need settings above 0.4 MPa, order the standard GR type instead. This unit also has no filter or bowl; if you need filtration, look at the GFR or GF families.
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.