The AirTAC GR20008LJC2G AirTAC Low-Pressure 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 GR20008LJC2G is an AirTAC GR-series air pressure regulator: it does one job, holding downstream compressed-air pressure steady at the setting you dial in. This unit is the low-pressure type, so its adjustment range goes up to 0.4 MPa, and it is built in size 200 with a G1/4 (1/4 in) female port. The trailing G in the code specifies the G (BSPP) thread form; PT is the standard thread for this series and G or NPT are ordered as catalogue options. An external round gauge with a psi scale is fitted, so operators can read and set the downstream pressure directly, and the unit ships without a mounting bracket.
This is a genuine AirTAC part. The GR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, standard or low-pressure regulation, embedded square or external round gauges in MPa, psi or bar scales, an optional reverse/check valve, and bracket or no-bracket mounting. Flow is published as curves rather than a single rated figure, so ask us to confirm the flow and datasheet figures for your application before ordering.
| Model | GR20008LJC2G AirTAC Low-Pressure 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 — round, 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). |
| C | Gauge shape: Round. 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 |
Bench rigs and test stations that run instruments or air-operated lab equipment at gentle, stable pressures use the low-pressure (L) adjustment range and the fitted psi gauge to hold the setting.
Paint lines feed spray guns through a regulator set well below main-header pressure; this low-pressure type with a round psi gauge lets the operator dial and read the exact gun supply pressure.
Light clamping and product-guiding cylinders on packaging conveyors need steady, moderate pressure; this G1/4 regulator holds the setpoint so guides grip consistently without crushing cartons.
Start with the port step: size 200 with a 1/4 in port suits lighter branch lines, while GR300, GR400 and GR600 step up in port and flow for larger headers. This code is the low-pressure (L) type, correct where the process needs settings up to 0.4 MPa; the standard GR type covers the full 0.05-0.9 MPa range, so choose L only when genuinely lower settings are the target. The fitted round gauge reads in psi, and square embedded gauges or MPa/bar scales are the alternatives. Thread is G (BSPP) here, with PT standard and NPT orderable. Bracket is omitted on this unit (J code), and GR is also panel-mountable. Because flow is published as curves rather than a single rating, send us your line conditions and we will confirm sizing 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 curves, not as a single rated figure, so we do not quote a number here. Send us your line pressure, downstream setting and expected air demand, and we will confirm the flow from the datasheet for this exact unit before you order.
The L in the code selects the low-pressure regulator type, whose adjustment range goes up to 0.4 MPa. That suits processes fed at moderate pressures, such as spray guns or light clamping. If you need settings across the full 0.05-0.9 MPa range, the standard GR type is the right choice 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.