The AirTAC GR20008LJF2G AirTAC Low-Pressure Air Regulator G1/4 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 GR20008LJF2G is an AirTAC GR-series air pressure regulator: it does one job, holding your downstream pressure steady as upstream supply and air demand fluctuate. This is the low-pressure type, adjustable up to 0.4 MPa, sized 200 with a G1/4 (BSPP) port. It is regulation only - there is no filter, no bowl and no drain in this family, so it should sit downstream of filtration if your line needs one. The embedded square pressure gauge ships fitted with a psi scale, and an external round gauge is available as an option.
This is a genuine AirTAC part. The GR family spans sizes 200 to 600 with ports from 1/8" to 1", standard or low-pressure adjustment types, gauge scales in MPa, psi or bar, bracket or no-bracket mounting, and PT (the catalogue standard), G or NPT threads to order. GR units are also panel-mountable, and this one carries no bracket as coded. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures against your application.
| Model | GR20008LJF2G AirTAC Low-Pressure Air Regulator G1/4 |
|---|---|
| Series | GR200 pressure regulator |
| Port size | PT1/4" (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 — square, psi 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). |
| F | Gauge shape: Square. 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. |
| (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 |
Set a steady reduced pressure to paint-spray guns or air knives on a finishing line, where the process calls for a gentle, stable setting below 0.4 MPa rather than full line pressure.
Regulate the low-pressure air feed to loom or textile machinery jets, holding a consistent setting so the machine's air circuit behaves the same shift after shift.
Feed pneumatic hold-down clamps on a woodworking or assembly fixture with a fixed low-pressure setting, protecting the workpiece from over-pressurised clamping.
Start with the port step: the 200 size takes a 1/4" port, and larger sizes (300/400/600) step up in port and flow capacity - match the size to your line's demand. This code is the low-pressure type, adjustable up to 0.4 MPa; if your circuit needs settings toward the standard range, order the non-L variant instead. The fitted square gauge reads in psi here; MPa or bar scales are orderable, and an external round gauge is an option. Thread: this unit is coded G (BSPP); PT is the catalogue standard and NPT is available - order the suffix you need. Bracket: this code omits it, so add a bracket or use panel mounting if you need fixed mounting. Flow is published as curves, not a single rating, so send us your flow and pressure requirements and we will confirm sizing from 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 regulator flow as performance curves, not as a single rated number, so we do not quote a l/min or SCFM figure. Tell us your upstream pressure, set pressure and air demand, and we will confirm the sizing from the datasheet curves before you order.
The L type in this code is adjustable up to 0.4 MPa, which suits circuits that run at gentle settings. A standard GR covers a wider adjustment range, so if your setpoint may go higher, order the variant without the L position. This unit is a regulator only: no filter, no bowl and no drain, so pair it with a GF filter upstream if your line needs one.
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.