The AirTAC GR30008LC2K AirTAC Low-Pressure Regulator, PT1/4 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 GR30008LC2K is an AirTAC GR300 series air pressure regulator, a genuine AirTAC part. It is a regulation-only unit: it reduces and holds downstream air pressure, and does not filter water or particles and does not lubricate the air. This configuration is the low-pressure type, with an adjustment range of up to 0.4 MPa, and it is fitted with a round pressure gauge scaled in psi and a reverse (check) valve. The ports are PT1/4 (1/4 in, PT thread as standard), the maximum inlet pressure is 1.0 MPa (145 psi), the working temperature range is -20 to 70 C, and the mounting bracket is included; the GR series is also panel-mountable.
The GR family is offered in four sizes (200, 300, 400, 600) with port sizes from 1/8 in to 1 in, in standard or low-pressure types, with or without a reverse valve, and with embedded square or external round gauges in MPa, psi or bar scales. Flow for this series is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures on request before you order.
| Model | GR30008LC2K AirTAC Low-Pressure Regulator, PT1/4 |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT1/4" (PT 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 — round, 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). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | PT 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 and hold a reduced supply pressure for the bag-forming and sealing stations of a packaging line, with the check valve holding the setting against backflow when the upstream supply dips.
Regulate the atomizing air feed to spray guns at the gentle set pressures low-pressure coating work needs, read directly off the fitted round psi gauge.
Hold a stable, moderate clamping pressure on pneumatic workholding fixtures, with the included bracket mounting the regulator at the fixture for local adjustment.
Choose the GR size and port step (200 through 600, 1/8 in to 1 in) against the air demand of the circuit; flow is published as curves rather than a single rating, so ask us to confirm sizing against the datasheet before ordering. Pick the regulator type to match the set pressure: this low-pressure (L) version adjusts up to 0.4 MPa, while the standard type covers 0.05-0.9 MPa. Select the gauge style and scale (embedded square or external round; MPa, psi or bar), decide whether a reverse (check) valve is needed, and choose the thread: PT is standard on this model, with G (BSPP) and NPT available as order options. A mounting bracket is included, and the GR can also be panel-mounted.
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-series flow as curves, not as a single rated figure, so we do not quote a flow number here. Tell us your application and we will confirm the flow and sizing from the datasheet on request before you order.
The L in the code GR30008LC2K marks the low-pressure regulator type: its adjustment range goes up to 0.4 MPa, instead of the 0.05-0.9 MPa range of the standard GR type. It is the right choice for circuits that only ever need gentle set pressures; if you need to set higher pressures, ask us for the standard-type equivalent.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.