The AirTAC GR20008LJC2TK AirTAC Low-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 GR20008LJC2TK is a genuine AirTAC GR-series air pressure regulator: it does one job, holding a steady downstream pressure from your compressed-air supply, and it deliberately carries no filter, no bowl and no lubricator. This configuration is the low-pressure type, so its adjustment range tops out at 0.4 MPa, and it is built in size 200 with a 1/4 in NPT female port. The trailing code letters add an external round pressure gauge scaled in psi, a built-in reverse (check) valve so downstream pressure cannot push back through the unit, and no mounting bracket - the GR body is also panel-mountable.
This is a genuine AirTAC part from the GR200 size class, one step in a family that runs from size 200 up to 600 with port sizes from 1/8 in to 1 in and PT, G or NPT threads. GR regulators work on compressed air only, tolerate up to 1.0 MPa (145 psi) inlet, and - uniquely in the G family - are rated from -20 to 70 C, so they suit colder installations than the other series. Flow is published as curves rather than a single rated figure; ask us and we will confirm the datasheet figures for your application.
| Model | GR20008LJC2TK AirTAC Low-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, 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. |
| 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 |
On a carton-sealing or case-packing line, hold gentle, repeatable clamping-cylinder pressure below 0.4 MPa so delicate cartons are pressed firmly without crushing, with the psi gauge giving operators a visible setpoint.
Regulate the low-pressure air feed to bottle-drying air knives and blow-off nozzles, keeping the blowing pressure stable across the shift, while the check valve stops backflow through the regulator when the supply side drops.
Feed spray guns or atomizing nozzles in a coating or test-booth setup with a steady low-pressure air supply, where a stable setpoint below 0.4 MPa matters more to finish quality than raw flow.
Start with the port: this unit is size 200 with a 1/4 in NPT thread, so it fits 1/4 in lines directly; if your pipe runs larger, step up to a GR300, GR400 or GR600 instead of bushing down, because the size step is what buys you flow capacity. Choose the low-pressure type (code L) only when your setpoint stays at or below 0.4 MPa - for higher setpoints the standard GR is the right pick. The round psi gauge fitted here reads in psi; square embedded gauges and MPa or bar scales are the other catalogue choices. The built-in check valve (K) suits circuits where downstream pressure must be held if upstream supply is lost. If you need PT or G threads, a bracket, or to drop the gauge, those are orderable variants of the same series.
One honest note before you order: AirTAC publishes regulator flow as curves, not a single rated number, so we cannot quote you a rated flow here. Send us your line size and required flow and we will confirm the sizing against the datasheet curves before you commit.
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 curves, not as a single rated figure, so there is no one rated-flow number we can honestly quote for this model. Tell us your line size and the flow your application needs, and we will confirm the sizing against the datasheet curves on request before you order.
The L in the code marks the low-pressure type of the GR series: its adjustment range goes up to 0.4 MPa, which suits circuits that never need higher setpoints. The K code adds a reverse (check) valve, so downstream pressure is held in the line instead of pushing back through the regulator if the upstream supply is lost.
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.