The AirTAC GR30008LF2G AirTAC Air Pressure Regulator G1/4 Low-Pressure 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 GR30008LF2G is an AirTAC GR300 air pressure regulator: regulation only, with no filter element and no bowl, so it drops cleanly into a line that already has filtration or where none is needed. This configuration is the low-pressure type, holding downstream pressure anywhere up to 0.4 MPa, and it carries a 1/4 in port with G (BSPP) thread. It tolerates up to 1.0 MPa (145 psi) at the inlet, works from -20 to 70 C (the widest temperature window in the G family), and ships as coded with an embedded square gauge reading in psi and a mounting bracket included; the body is also panel-mountable.
This is a genuine AirTAC part. The GR family spans four sizes (200/300/400/600) with ports from 1/8 in to 1 in, standard or low-pressure regulation, gauges in MPa, psi or bar scales, and PT, G or NPT threads. Because AirTAC publishes flow as curves rather than a single rated figure, we confirm the exact flow and datasheet figures for your application on request.
| Model | GR30008LF2G AirTAC Air Pressure Regulator G1/4 Low-Pressure |
|---|---|
| Series | GR300 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 | Fixing bracket included |
| 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 | 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.
| GR300 | G-series pressure regulator, 300 body — sets the port range. |
|---|---|
| 08 | Port size PT1/4". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| 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. |
| 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. |
| (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 | GR300 · PT1/4" · 0.05 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size down | GR200 |
| One size up | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Set a gentle, repeatable holding pressure for pneumatic clamps and swing cylinders on an assembly line fixture, where full-line pressure would mark or deform the workpiece.
Feed sealing and tucking heads on a packaging line at a controlled low pressure so film and cartons are sealed without crushing, independent of swings in the main air supply.
Regulate a bench or pilot rig that needs a stable low-pressure air supply below 0.4 MPa, with the psi-scaled square gauge giving a direct readout at the set point.
Start with the port step: the GR300 sits at 1/4 in, one step above the GR200 (1/8 in) and below the GR400 (3/8 in) and GR600 (1/2 in) - pick the size that matches your line and the flow your actuators need. Choose standard (up to 0.9 MPa) or low-pressure regulation (up to 0.4 MPa) to suit your circuit; this unit is the low-pressure type. Decide the gauge scale (MPa, psi or bar) and whether you want the embedded square gauge or the optional external round gauge. Thread is PT as the family standard, with G and NPT as order options; a bracket is included unless you order the J (no-bracket) version. 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 GR-series flow as curves rather than a single rated figure, so we do not quote a rated flow number. Send us your line size and air demand and we will confirm the flow from the datasheet on request before you order.
The L in the code marks the low-pressure type: its adjustment range tops out at 0.4 MPa instead of the 0.05-0.9 MPa of the standard GR. If your circuit needs to regulate above 0.4 MPa, the standard type without the L is the right choice.
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.