The AirTAC GR30008LF2GK AirTAC Low-Pressure Regulator, G1/4 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 GR30008LF2GK is an AirTAC GR300 air pressure regulator in the low-pressure type, built for circuits that need gentle, adjustable regulation up to 0.4 MPa. It is fitted with a 1/4 inch G-thread port, an embedded square pressure gauge reading in psi, and a reverse (check) valve that holds downstream pressure if the upstream supply dips. A mounting bracket is included and the unit is also panel-mountable. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -20 to 70 C.
This is a genuine AirTAC part. The GR series is available in sizes 200, 300, 400 and 600 with ports from 1/8 to 1 inch, in standard or low-pressure types, with a choice of gauge scale (MPa, psi or bar) and PT, G or NPT threads. As with the whole G-series, flow figures are published as curves rather than a single rating, so we confirm sizing and datasheet details on request.
| Model | GR30008LF2GK AirTAC Low-Pressure Regulator, G1/4 |
|---|---|
| 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 | 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.
| 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. |
| 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 | 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, stable supply pressure for glue heads or spray nozzles on a packaging or finishing line, where the process calls for pressures well below the standard 0.9 MPa ceiling.
Feed low-pressure air to jet nozzles and tension rollers on weaving and spinning machines, with the square psi gauge giving operators a local reading right at the machine.
The fitted reverse (check) valve keeps a clamping or holding circuit pressurised if the upstream supply dips - useful on fixtures and jigs where a dropped clamp means scrapped parts.
Start with size and port: this is a GR300 with a 1/4 inch G-thread port, one step up from the 200 series where your line needs more air. The L in the code marks the low-pressure type, which regulates up to 0.4 MPa - if your circuit needs up to 0.9 MPa, choose the standard type instead. The F2 gauge reads in psi; MPa and bar scales are catalogue options, and an external round gauge is also available. PT thread is the standard; G and NPT are options to order. A bracket is included and the unit is panel-mountable, and the fitted K reverse valve holds downstream pressure. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
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.
Flow for the GR300 series is published as curves rather than a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the sizing against the datasheet on request.
F2 decodes as the embedded square pressure gauge with a psi scale. MPa (code 1) and bar (code 3) scales are catalogue options, and an external round gauge is also available if you prefer a panel-mounted reading.
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.