The AirTAC GR30015JC2GK AirTAC Pressure Regulator, G1/2 Port 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 GR30015JC2GK is an AirTAC GR-series air pressure regulator: it does one job, holding your downstream pressure steady at the setting you choose. This 300-size unit is specified with a G1/2 (BSPP) port, a regulation range of 0.05-0.9 MPa (7-130 psi), a round pressure gauge reading in psi, and a built-in reverse (check) valve so downstream pressure cannot back-feed through the unit. It is supplied without a mounting bracket; as a GR unit it can also be panel-mounted, and it carries no filter bowl, no drain and no lubricator - regulation only.
This is a genuine AirTAC part from the GR family, which spans four sizes (200, 300, 400 and 600) with port sizes from 1/8" to 1" and options including gauge scale (MPa, psi or bar), square or round gauge, a low-pressure type, and G or NPT thread variants. Because AirTAC publishes flow for this family as curves rather than a single rated figure, we confirm the datasheet and flow figures for your application on request.
| Model | GR30015JC2GK AirTAC Pressure Regulator, G1/2 Port |
|---|---|
| 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 | Supplied without bracket |
| 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. |
| J | Supplied without bracket. |
| (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 downstream pressure feeding an air-operated press or clamping cylinder, with the check valve preventing back-feed from disturbing the setting.
Regulate the supply pressure to packaging machine actuators and cylinders so seal bars and product-push mechanisms run at a consistent, repeatable setting.
Trim the air pressure on a machine tool's pneumatic circuit - tool clamping, part ejection or chip-clearing blasts - independently of the shop-air header pressure.
Start with the port and size step: this unit is 300 size with a G1/2 port; if your line needs a different connection or more flow capacity, the GR family steps through 200/300/400/600 with ports from 1/8" to 1". Choose the gauge scale to match your shop standard - this configuration is supplied with a round gauge reading psi, and MPa or bar scales are available as options. Thread is your next choice: PT is the AirTAC standard, while G (BSPP, as decoded here) and NPT are catalogue options you order explicitly. The K code here means a reverse/check valve is fitted - select it when back-flow could disturb your set pressure. A bracket can be added if you do not want panel mounting.
One honest note on sizing: AirTAC publishes regulator flow as curves, not a single rated number, so we do not quote a flow figure here. Send us your application's flow and pressure requirements and we will confirm the correct GR size against the datasheet before you order.
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 we do not state a flow number here. Tell us your application's flow and upstream/downstream pressures and we will confirm the correct sizing against the datasheet on request.
C2 is the gauge code: a round external gauge with a psi scale (MPa and bar scales are available as options). G is the thread code for G (BSPP) thread - PT is the AirTAC standard and NPT is also an order option. K means a reverse/check valve is fitted, so downstream pressure cannot back through the regulator.
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.