The AirTAC GR20008LJF2GK AirTAC Regulator G1/4 Low-Pressure Type 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 GR20008LJF2GK is an AirTAC GR200 series air pressure regulator, and nothing more: its single job is to hold a steady downstream air pressure. This is the low-pressure type, so its adjustment range tops out at 0.4 MPa - the right choice for circuits that must never see full line pressure. It is built for a G1/4 (1/4 in) port with G (BSPP) thread, and this configuration is well equipped: an embedded square gauge on the psi scale is fitted, a reverse/check valve (code K) is fitted to hold downstream pressure when the upstream supply drops, and the J code means no mounting bracket is included. As a GR unit it has no filter, no bowl and no drain - pair it with a GF filter if the air needs cleaning first.
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, in standard or low-pressure versions, with or without gauge, bracket or check valve. Max 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. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application.
| Model | GR20008LJF2GK AirTAC Regulator G1/4 Low-Pressure Type |
|---|---|
| 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 — square, 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). |
| F | Gauge shape: Square. 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 |
On a carton-sealing or case-packing line, pneumatic clamps and pushers often need a gentle, tightly capped pressure well below main line supply. This low-pressure GR regulator, fitted with the check valve to hold the clamp position if supply dips, keeps that circuit steady at its G1/4 tap-off point.
Bench rigs, test stations and small pilot-plant skids frequently run instruments and actuators that must not see full shop-air pressure. Mounted at the bench drop with its square psi gauge in plain view, this regulator lets an operator set and read a safe low pressure directly in psi.
Assembly and machining fixtures with small air cylinders work best when the cylinder pressure is set once and held, independent of compressor swings. This GR200 regulator at the fixture inlet, with its check valve holding the setting during supply fluctuations, gives the fixture a stable, repeatable working pressure.
Start with the port: the 200 size here is the smallest GR step, and the 08 code gives a 1/4 in port - step up to GR300/400/600 if your line volume demands a larger port. Then choose the regulator type: this low-pressure (L) version adjusts up to 0.4 MPa, while the standard GR covers 0.05-0.9 MPa - pick standard if you need to regulate above 0.4 MPa. The gauge here is the embedded square type on the psi scale; MPa or bar scales and an external round gauge are the other catalogue options. Thread is G (BSPP) on this unit; PT is the standard thread and NPT is also an order option. The J code means no mounting bracket - add a bracket variant if you want panel or surface mounting, and note GR is also panel-mountable. The fitted K reverse/check valve holds downstream pressure on supply loss; omit it if you do not need that. One honest note: flow is published as curves, not 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 flow as curves rather than a single rated figure, so we do not quote a rated flow, Cv or l/min number for this unit. Tell us your application and required downstream flow, and we will confirm the sizing against the datasheet curves on request before you order.
The L in the code marks this as the low-pressure type of the GR family, whose adjustment range tops out at 0.4 MPa. It is intended for circuits that must never be set above that level. If you need to regulate up to 0.9 MPa, choose the standard GR version instead - it is the same family without the L code.
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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.