The AirTAC GR20008LJF1TK AirTAC Air 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 GR20008LJF1TK is an AirTAC GR-series air pressure regulator in the compact GR200 size with a 1/4 in NPT port. This is the low-pressure type, so outlet pressure is adjustable up to 0.4 MPa, and the unit is built for regulation only: there is no filter, no bowl and no drain in this family. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -20 to 70 C, wider than the rest of the G-series. The code confirms a square pressure gauge (MPa scale) fitted, a reverse/check valve installed, and no mounting bracket - the GR body is also panel-mountable, so it can be fixed directly to a machine plate or control panel.
This is a genuine AirTAC part. The GR family is available in sizes 200, 300, 400 and 600 with matching port sizes, in standard or low-pressure regulation, with or without gauge, bracket and reverse valve, and with PT, G or NPT threads. Published flow data is given as curves rather than a single rated figure, so ask us and we will confirm the sizing figures from the datasheet for your application before you order.
| Model | GR20008LJF1TK AirTAC Air 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 — square, 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). |
| F | Gauge shape: Square. 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 |
On a carton-sealing or case-packing line, dispensing heads for cold glue and hot-melt sealant need a gentle, steady air supply to the applicator. This low-pressure regulator lets the line operator dial in the dispensing air and hold it there, with the fitted check valve keeping the setting stable if upstream supply dips mid-shift.
Workholding clamps and swing cylinders on a bench or fixture benefit from air set well below full line pressure so parts are held firmly without being crushed. Mounted on the fixture's supply panel, this 1/4 in regulator gives the cell its own low-pressure setting, visible at a glance on the square MPa gauge.
Bench-top test rigs, sample dryers and small pilot-plant skids often run instruments and actuators on low-pressure air tapped from a shop header. A panel-mounted GR200 regulator steps the header supply down to the gentle level these devices expect, and the wide -20 to 70 C range suits unheated lab and utility rooms.
Start with the port: this unit is 1/4 in NPT, so match it to the line size - and if your circuit runs on PT or G (BSPP) fittings, the same regulator can be ordered in those threads instead. Because this is the low-pressure (L) type, choose it where the process needs gentle outlet settings up to 0.4 MPa; for general circuits needing the full 0.05-0.9 MPa range, the standard GR version is the right pick. The square gauge fitted here reads in MPa; psi and bar scales are available if your crew works in those units. The fitted reverse/check valve holds downstream pressure if the upstream supply drops, and the no-bracket code suits panel or manifold mounting - order the bracket variant if you want wall or shelf fixing. Flow for the GR200 is published as curves, not a single rating, so send us your air demand and we will confirm the correct size 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 characteristic curves rather than a single rated number, so there is no one flow figure we can honestly quote. Tell us your line pressure and the air demand of the equipment you are feeding, and we will confirm the sizing against the datasheet curves for you before you order.
The L in the code marks the low-pressure type, whose adjustment range tops out at 0.4 MPa - ideal for processes that need gentle, stable settings. If your circuit needs the full standard range up to 0.9 MPa, the same GR200 body is available without the L code. Both types share the 1.0 MPa (145 psi) maximum inlet pressure and the same port options in PT, G or NPT thread.
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.