The AirTAC GR20008LJC1TK 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 GR20008LJC1TK is an AirTAC GR200 air pressure regulator in the low-pressure type, built for circuits that must hold a stable supply pressure at or below 0.4 MPa. It is a regulation-only unit: there is no filter, no bowl and no drain, so it belongs downstream of filtration where clean air is already assured. This configuration has 1/4 inch NPT ports, a maximum inlet pressure of 1.0 MPa (145 psi), an operating temperature range of -20 to 70 C, a round pressure gauge on the MPa scale fitted as supplied, and a reverse/check valve fitted so downstream pressure is held if the upstream supply drops. No mounting bracket is included; the GR body is also panel-mountable.
This is a genuine AirTAC part. The GR series spans four body sizes (200, 300, 400 and 600) with port sizes from 1/8 to 1 inch, offered as standard or low-pressure types, with or without a gauge, bracket or reverse valve, and in PT, G or NPT thread. Flow is published as sizing curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GR20008LJC1TK 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, MPa 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. |
| 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. |
| 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 |
Hot-melt and cold-glue applicators on carton-sealing machines need a gentle, steady supply pressure held well below 1 bar gauge. This low-pressure GR200 regulator with its 0.4 MPa ceiling and MPa gauge lets an operator set and read the dosing pressure directly at the machine.
Directional-valve pilot stages and I-to-P converters on a process skid are fed from a reduced-pressure branch off the main header. The 1/4 inch NPT ports suit compact panel plumbing, the fitted check valve holds the pilot line if the header dips, and the round MPa gauge gives a clear local reading.
Weaving and knitting machines use small reduced-pressure air branches for yarn threading jets and fabric tension rollers. A 200-size regulator mounted at the machine with no bracket, panel-mounted next to the loom controls, keeps these delicate circuits isolated from the main plant pressure.
Start with the port step: the 200 size carries 1/4 inch ports here, and the larger 300/400/600 bodies step up in port and flow capacity, so match the body to the line size and the air demand of the circuit. This code is the L low-pressure type, whose regulation range tops out at 0.4 MPa; if your setpoint must go higher, choose the standard GR type instead (0.05-0.9 MPa). The gauge here is the external round type on the MPa scale; square embedded gauges and psi or bar scales are the other catalogue choices. Thread is NPT on this unit, with PT (standard) and G available as order options. The K code adds a reverse/check valve, useful where downstream pressure must be held on supply loss, and the J code means no mounting bracket, though the GR is panel-mountable. Flow is published as curves rather than a single rating, 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 GR-series flow as sizing curves rather than a single rated number, so no one-figure rating exists for us to quote. We will confirm the datasheet flow figures for this 200-size, 1/4 inch NPT regulator against your application on request - just tell us your upstream pressure, setpoint and expected air demand.
The L in the code makes this the low-pressure GR variant, whose regulation range tops out at 0.4 MPa - the right choice for circuits that must never see full line pressure. The K adds a reverse/check valve, so downstream pressure is held if the upstream supply is lost. The standard GR type, with a range up to 0.9 MPa, is the alternative if you need a higher setpoint.
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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.