The AirTAC GR30015C2GK AirTAC Air Pressure Regulator G1/2 (PT1/2) 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 GR30015C2GK is an AirTAC GR-series air pressure regulator: it does one job, holding your downstream pressure steady at the setting you dial in, and it contains no filter and no lubricator. This 300-size unit is ordered with a G1/2 (BSPP) female port, an external round pressure gauge scaled in psi, and a built-in reverse (check) valve that lets downstream air back-flow past the regulator so the setting is not disturbed. The adjustment range is 0.05-0.9 MPa (7-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the unit operates from -20 to 70 C - a wider temperature window than the rest of the G-series air-treatment family. A mounting bracket is included, and the GR body is also panel-mountable.
This is a genuine AirTAC part. The GR line spans four sizes (200, 300, 400, 600) with ports from 1/8 to 1 inch, so you can step up or down as your flow demand changes. Options include the embedded square gauge or an external round gauge with MPa, psi or bar scales, a low-pressure type limited to 0.4 MPa, PT, G or NPT threads, and a reverse/check valve. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GR30015C2GK AirTAC Air Pressure Regulator G1/2 (PT1/2) |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT1/2" (G (BSPP) 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, 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. |
|---|---|
| 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. |
| 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 · PT1/2" · 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 and hold a stable working pressure feeding a bench pneumatic press or clamping fixture, with the check valve protecting the setting from back-flow when the press retracts.
Regulate the supply to carton-sealing and case-erector cylinders on a packaging conveyor, with the round psi gauge giving operators a visible setpoint at the machine.
Drop plant header pressure to a safe working level at the point of use on a production floor, panel-mounted or bracket-mounted at the machine inlet.
Pick the GR size by the flow your line needs: 200, 300, 400 and 600 step up in both port size and capacity, and this unit sits at 300 with a G1/2 port. Because the catalogue publishes flow as curves rather than one rated number, send us your demand and we will confirm the right size against the datasheet before you order. Set the outlet with the fitted round gauge - psi scale here, with MPa and bar scales available if your panel reads differently. Thread is your choice of PT (the standard), G/BSPP or NPT; this code carries G. The reverse/check valve (code K) is worth specifying whenever downstream cylinders or tanks could push air back toward the regulator. If your circuit never exceeds 0.4 MPa, the GR low-pressure (L) type is the matching variant; otherwise this standard type covers the full 0.05-0.9 MPa (7-130 psi) range.
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 performance curves rather than a single rated figure, so there is no one number we can honestly quote. Tell us your inlet pressure, set pressure and air demand, and we will confirm the sizing from the datasheet before you order.
The K in the code adds a reverse (check) valve, which allows downstream air to back-flow past the regulator instead of disturbing its setting. C2 specifies the external round gauge scaled in psi; square-gauge and MPa or bar scale versions are available in the same series if your panel prefers them.
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.