The AirTAC GR30015LC2T AirTAC Air Regulator NPT1/2 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 PT1/2" 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 GR30015LC2T is an AirTAC GR-series air pressure regulator, a genuine AirTAC part dedicated to one job: holding a stable, adjustable downstream air pressure on a compressed-air line. This unit is the 300 size with a 1/2 in NPT port, and it is the low-pressure (L) type, so its regulation range tops out at 0.4 MPa - the right choice when the downstream equipment must never see more than a moderate working pressure. A round pressure gauge with a psi scale is fitted, so the set pressure can be read and adjusted directly at the unit.
The GR series is offered in sizes 200, 300, 400 and 600 with a choice of PT, G or NPT threads, gauge styles and scales, and an optional reverse/check valve. GR is the only G-series family rated for -20 to 70 C, making it suitable for colder environments than the rest of the range. Flow figures for this series are published as curves rather than a single rating, so we confirm the datasheet figures for your application on request.
| Model | GR30015LC2T AirTAC Air Regulator NPT1/2 Low-Pressure |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT1/2" (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 — round, 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. |
|---|---|
| 15 | Port size PT1/2". 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. |
| 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 | GR300 · PT1/2" · 0.05 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size down | GR200 |
| One size up | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Fixture and clamp actuators on an assembly line that must be held at a moderate, closely watched pressure - the low-pressure range up to 0.4 MPa with a psi gauge keeps the setting inside the tooling limit.
Positioner and pilot-air feeds on plant valves that require a gentle, stable supply pressure; the 1/2 in NPT port suits the supply line and the gauge lets operators verify the set point during rounds.
Bench and test-rig air panels where the supply must be stepped down to a low working pressure, and where the GR family's wider -20 to 70 C temperature range suits an unheated or chilled space.
Start with the port step: this is the 300 size with a 1/2 in NPT port, sized against the air demand of the line - if your flow requirement is near the top of this size, step up to the 400. The low-pressure (L) type regulates up to 0.4 MPa; if you need to set pressures above that, choose a standard GR instead. The fitted round gauge reads in psi; square embedded gauges and MPa or bar scales are alternatives in the series. Thread is NPT here, with PT and G available as order options. A mounting bracket is included and GR is also panel-mountable.
Flow for the GR series is published as curves, not a single rated figure, 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, not as a single rated figure, so we do not quote a flow number. Tell us your line pressure and air demand and we will confirm the sizing from the datasheet for this 300-size, 1/2 in NPT regulator on request.
The L in GR30015LC2T marks the low-pressure type, whose adjustment range tops out at 0.4 MPa - ideal for downstream equipment with a modest pressure limit. If you need to set higher pressures, order a standard GR300 in the same size and port instead; both share the 1.0 MPa (145 psi) maximum inlet pressure.
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.