The AirTAC GR30015JC3T 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 GR30015JC3T is an AirTAC GR-series air pressure regulator for compressed air only. It does one job: it holds a steady downstream pressure from the 0.05-0.9 MPa (7-130 psi) adjustment range regardless of swings upstream, up to a maximum inlet pressure of 1.0 MPa (145 psi). This unit is the 300 size with NPT1/2 (1/2 in) ports, the standard regulator type, a round pressure gauge with a bar scale fitted, and no mounting bracket - the GR body is also panel-mountable. As a pure regulator it contains no filter, no bowl and no drain, and it operates from -20 to 70 C, a wider temperature window than the rest of the G family.
This is a genuine AirTAC part. The GR line is made in 200, 300, 400 and 600 sizes with port sizes from 1/8 in to 1 in, in PT (standard), G and NPT threads, with optional low-pressure type, reverse/check valve, gauge scale in MPa, psi or bar, and bracket or no-bracket configurations. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GR30015JC3T 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 | Supplied without bracket |
| 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. |
| J | Supplied without bracket. |
| (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 and hold a stable working pressure to a pneumatic press or clamping cylinder, so the tooling cycle sees the same setpoint even as the compressor loading upstream drifts.
Feed the cylinder banks on a cartoning or case-packing machine from a regulated branch, keeping seal-bar and pick-and-place actuators on one consistent pressure.
Take a 1/2 in drop from the main plant air header and regulate it before it feeds a work cell, protecting downstream valves and cylinders from header pressure swings.
Start with the port step: this 300-size unit carries NPT1/2 (1/2 in) threads, so match it to your line size and the flow your circuit needs - larger GR sizes (400, 600) move more air through larger ports. Choose the gauge scale to suit your team: this unit ships with a round gauge in bar, and MPa or psi scales are orderable alternatives. Thread is decodable: trailing T means NPT here, while PT is the AirTAC standard and G (BSPP) is the other catalogue option - order the suffix that matches your fittings. Bracket: J means no bracket is supplied, and the GR body can also be panel-mounted. If your setpoint sits below 0.4 MPa, the L low-pressure type is the matching variant, and K adds a reverse/check valve. Flow for GR regulators is published as curves, not a single rating, so send us your application and we will confirm sizing against the datasheet before you order.
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 regulator flow as performance curves rather than a single rated figure, so we do not quote a number like l/min or SCFM. Send us your line size and application and we will confirm the datasheet flow curve for the GR300 at your operating conditions on request.
The J in GR30015JC3T means no mounting bracket is supplied with this configuration. The GR regulator body is also panel-mountable, so you can fix it to a panel or order a bracketed variant if you prefer standalone mounting. Note this is a regulator only: it has no filter, bowl or drain, and the round gauge fitted here reads in bar (MPa and psi scales are the other catalogue options).
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.