The AirTAC GR20008LJC2GK AirTAC Air 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 GR20008LJC2GK is an AirTAC GR-series air pressure regulator in the 200 size with a G1/4 (BSPP) female port. This is the low-pressure type, so it regulates downstream pressure up to 0.4 MPa, making it the right choice for circuits that must never see full-line pressure. It accepts a maximum inlet pressure of 1.0 MPa (145 psi) and operates from -20 to 70 C, the widest temperature window in the G family. This configuration is fitted with an external round gauge scaled in psi, a reverse (check) valve so downstream pressure is held if the supply drops, and no mounting bracket; the GR body can also be panel-mounted.
This is a genuine AirTAC part. The GR family is available in 200, 300, 400 and 600 sizes covering ports from 1/8 to 1 inch, with standard or low-pressure regulation, gauge or no-gauge versions, MPa/psi/bar gauge scales, PT/G/NPT threads and optional brackets. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GR20008LJC2GK AirTAC Air 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 | 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. |
| 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. |
| 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 |
Sensitive clamp and hold-down cylinders on carton-sealing or case-packing lines need a gentle, capped pressure. This low-pressure GR200 regulator with its fitted psi gauge lets an operator set and read the clamp pressure directly at the machine, and the check valve holds the setting if the main supply dips.
Spray guns, coating heads and small laboratory pneumatic fixtures typically run at modest pressures where a full-range regulator offers more adjustment than the process needs. This G1/4 low-pressure unit regulates down to the working band these devices use, with a round psi gauge for repeatable day-to-day settings.
Diverter gates, pushers and light actuation duties on food-processing lines often run on reduced pressure to protect product and tooling. Installed at the point of use with its 1/4 in G-thread port, this regulator caps the branch supply at up to 0.4 MPa and tolerates the -20 to 70 C conditions of chilled production areas.
Start with the port step: the 200 size here carries a 1/4 in port, and moving to 300/400/600 raises both port and flow capacity, so size up where your circuit demands more air. This unit is the L (low-pressure) type, regulated up to 0.4 MPa - choose the standard type instead if you need the full 0.05-0.9 MPa range. The fitted round gauge reads in psi; embedded square gauges and MPa or bar scales are the other catalogue options. Thread is G (BSPP) here, while PT (standard) and NPT are order options. The K code adds a reverse/check valve, and J means no mounting bracket is supplied. Flow for GR regulators is published as curves, not a single rated figure, so send us your application details and we will confirm sizing against the datasheet before you order.
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 regulator flow as performance curves rather than a single rated figure, so we do not quote a l/min, m3/h, SCFM or Cv number. Tell us your application and we will confirm the relevant datasheet flow curve for the GR200 at your supply pressure before you order.
In the code GR20008LJC2GK, the C2 position selects the optional external round gauge with a psi scale (MPa and bar scales are the alternatives), and the trailing K fits a reverse (check) valve so downstream pressure is retained if the upstream supply is lost. Both are catalogue options you can include or omit when ordering GR regulators.
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.