The AirTAC GR20008LJF1T 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 GR20008LJF1T is an AirTAC GR-series air pressure regulator: it does one job only, holding a steady downstream pressure from a compressed-air supply. This is the low-pressure (L) type in the 200 size, adjusted up to 0.4 MPa, with a 1/4 in NPT port. It carries no filter and no bowl, so it adds no filtration and no lubrication - pair it upstream with a filter if your line needs one. The embedded square gauge (MPa scale) is fitted as standard, an external round gauge is available as an option, and this unit ships without a mounting bracket; the GR family is also panel-mountable.
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, standard and low-pressure types, gauge and no-gauge variants, and a reverse/check-valve option. 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 family. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GR20008LJF1T 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 — square, MPa scale |
| Reflux valve | Not fitted |
| 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. |
| (blank) | No reverse-flow valve (the default). |
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 |
Holds a gentle, stable pressure to the clamp cylinders on a carton-sealing or case-packing station, where the low-pressure (L) adjustment range up to 0.4 MPa matches a delicate grip that must not crush the product.
Regulates the air feed to bench-top test rigs and lab apparatus where instruments and actuators are rated well below full line pressure and need a steady, repeatable setting read locally on the MPa gauge.
Sets a reduced, consistent pressure for the light-duty air cylinders that raise diverters and gates on a conveyor line, keeping their action gentle and repeatable without overdriving the mechanism.
Size and port step with required flow: the 200 size with a 1/4 in port suits compact circuits, while 300/400/600 give larger ports for higher demand - we confirm the right step against your flow curve before ordering. This unit is the low-pressure (L) type, adjusted up to 0.4 MPa; if your circuit needs the full standard range, order the non-L variant instead. The fitted square gauge reads in MPa; psi and bar scales and an external round gauge are orderable options. Thread is NPT here; PT is the standard catalogue thread and G (BSPP) is also available to order. Bracket: this code is the no-bracket (J) version; bracketed variants exist. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
Quick checklist
Without a reflux valve, air cannot flow back through the regulator — order the K option if reverse flow is required. A regulator does not remove water or particulate; that is the filter's job.
AirTAC publishes regulator flow as curves rather than a single rated figure, so we do not quote a l/min, m3/h or SCFM number. Send us your application details and we will confirm the datasheet and check the GR200 curve against your required flow before you order.
L marks the low-pressure type: the adjustment range tops out at 0.4 MPa instead of the standard GR range, suiting circuits that run at reduced pressure. This unit also carries the F1 gauge code - an embedded square gauge with an MPa scale; psi or bar scales and an external round gauge are available as ordering options.
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.