The AirTAC GR30015C3T AirTAC Air Pressure Regulator NPT1/2 is a genuine G-series air pressure regulator. It holds a stable downstream pressure over the range 0.05 - 0.9 MPa (7 - 130 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 GR30015C3T is a genuine AirTAC GR-series air pressure regulator: it does one job, holding your downstream air pressure steady at the setting you choose. This size 300 unit carries a 1/2 in NPT port, and the C3 suffix means an external round pressure gauge with a bar scale is fitted, so the set pressure is readable at the wall of the unit. The standard regulator type covers a setting range of 0.05-0.9 MPa (7-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and it works across -20 to 70 C - a wider temperature window than the rest of the G family.
This is a genuine AirTAC part from the GR line, which spans sizes 200, 300, 400 and 600 with port options from 1/8 in to 1 in and PT, G or NPT threads. A mounting bracket is included, and the GR body is also panel-mountable. Because AirTAC publishes flow as curves rather than a single rated figure, we confirm the datasheet and flow figures for your application on request.
| Model | GR30015C3T AirTAC Air Pressure Regulator NPT1/2 |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT1/2" (NPT thread) |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Standard 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, 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.
| 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". |
| (blank) | Standard type — 0.05 - 0.9 MPa (7 - 130 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. |
| 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 | GR300 · PT1/2" · 0.05 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR200 |
| One size up | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Set a stable, reduced pressure feeding a bench-mounted pneumatic press or clamping fixture, so the tooling sees the same setting on every cycle regardless of header pressure swings.
Regulate the branch feeding cylinder-driven carton sealing and labelling heads on a packaging line, with the fitted bar gauge giving operators a visible setpoint at the machine.
Hold a consistent supply pressure to pop-up divertors and stopper cylinders on a conveyor line, where a drifting setting would throw off gate timing and product tracking.
Start with the port step: this unit is size 300 with a 1/2 in NPT port, so match it to your line size and let the required air demand drive whether you need to step up to size 400 or 600, or down to 200. If you need a different setting scale, the gauge is available with MPa, psi or bar dials, in an embedded square or external round style. Thread is a real choice too: PT is the standard, while G (BSPP) and NPT are order options - this unit is the NPT version. A low-pressure type (L) and a reverse/check valve (K) are also catalogue options on GR. One honest note before you order: AirTAC publishes regulator flow as curves, not a single rated number, so ask us to confirm sizing against your application before you commit.
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 regulator flow as curves in the catalogue, not as a single rated figure, so there is no one number we can honestly quote. Send us your application details and we will confirm the flow figures from the datasheet on request before you order.
C means an external round gauge is fitted and 3 means its dial is scaled in bar, so this unit reads its set pressure in bar out of the box. The gauge is optional on GR regulators and is also available with MPa or psi scales, or as an embedded square gauge, if you prefer a different readout.
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.