The AirTAC GR20008LF3T AirTAC Air Pressure Regulator, NPT 1/4 in 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 GR20008LF3T is an AirTAC GR-series air pressure regulator: it does one job, holding downstream air pressure steady at the value you set, and it does nothing else - no filtration, no lubrication, no bowl. This particular configuration is the low-pressure type, meaning its adjustment range tops out at 0.4 MPa, which suits circuits that must never see full line pressure. It carries 1/4 in NPT ports, an embedded square pressure gauge reading in bar, and a mounting bracket is included; the GR body is also panel-mountable.
This is a genuine AirTAC part. The GR family spans four sizes (200, 300, 400 and 600) with progressively larger ports, and can be ordered with G (BSPP) or NPT threads in place of the PT standard, with or without a gauge, and with a reverse/check valve where needed. Because AirTAC publishes flow only as curves rather than a single rated figure, we confirm the exact flow and datasheet figures for your application on request.
| Model | GR20008LF3T AirTAC Air Pressure Regulator, NPT 1/4 in |
|---|---|
| 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 | Fixing bracket included |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -20 to +70 °C |
| Pressure gauge | Fitted — square, bar 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. |
| (blank) | Fixing bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. C is round, F is square. |
| 3 | Gauge scale: bar. 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 |
On a vertical form-fill-seal machine, the low-pressure setting keeps the air feeding the sealing-jaw cylinders gentle and repeatable, so film seals are pressed with consistent force instead of whichever pressure the shop compressor happens to deliver.
Low-pressure pneumatic clamps on a machining-centre fixture need a steady, limited supply to hold workpieces firmly without crushing thin-wall parts. This regulator sets and holds that clamp pressure at the cell.
Spray guns and air-assisted atomizers in a finishing booth run on reduced, stable air. Setting the pressure once at the regulator keeps finish quality consistent across shifts, with the bar-scale gauge giving operators a clear reference.
Start with the port step: GR200 is the smallest size in the family at 1/4 in, so step up to GR300/GR400/GR600 if your line volume demands a larger port - and ask us to confirm the sizing against the flow curves before you order, since AirTAC publishes flow as curves rather than one rated number. Choose the low-pressure type (L) only when your circuit must be limited to 0.4 MPa; the standard GR covers the wider 0.05-0.9 MPa range. This unit ships as a specification with a square gauge reading in bar; psi and MPa scales and an external round gauge are orderable alternatives. Thread is NPT here, with PT (the catalogue standard) and G (BSPP) as the other orderable options. A mounting bracket is included with this code, and the GR can also be panel-mounted.
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 GR-series flow only as capacity curves, not as a single rated figure, so we do not quote a number on the page. Send us your line pressure, set pressure and expected air demand, and we will confirm the flow from the datasheet curves and check the GR200 at 1/4 in NPT is the right size before you order.
L marks the low-pressure regulator type: its adjustment range tops out at 0.4 MPa instead of the standard GR range, for circuits that must stay below full line pressure. The F3 in the code means an embedded square gauge is fitted with a bar scale; psi and MPa scales, and an external round gauge, are available as orderable alternatives.
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.