The AirTAC GR30015JNT 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, ordered without a 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 GR30015JNT is an AirTAC GR-series air pressure regulator: it does one job, holding your downstream pressure steady at the setting you choose. This size 300 unit has a 1/2 in NPT port, adjusts from 0.05 to 0.9 MPa (7-130 psi), and accepts up to 1.0 MPa (145 psi) inlet. It is rated for -20 to 70 C, the widest temperature window in the G family. This configuration carries no gauge and no mounting bracket; the GR body is also panel-mountable.
This is a genuine AirTAC part. The GR line spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, plus options such as a supplied gauge (round or square, MPa/psi/bar scales), a low-pressure type limited to 0.4 MPa, a reverse/check valve, and G or NPT thread in place of the PT standard. Flow is published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GR30015JNT 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 | Not fitted |
| 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. |
| N | No pressure gauge (N). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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 working pressure feeding a pneumatic press or clamping fixture, so forming and holding forces stay repeatable shift after shift regardless of header pressure swings.
Feed wrapper sealing cylinders and pick-and-place actuators on a packaging line at a fixed, protected pressure, keeping cycle quality consistent as demand across the plant fluctuates.
Regulate the atomizing air to spray guns in a finishing booth, holding the delivery pressure steady so coating fineness does not drift with supply line variation.
Start with the port step: GR200 through GR600 cover 1/8 to 1 in, and the right size is the one whose flow curve clears your consumption at acceptable pressure drop - we can check that against the datasheet before you order. Then set the pressure window: the standard GR adjusts 0.05-0.9 MPa, while the L low-pressure type caps at 0.4 MPa if your circuit runs lower. Choose the thread to match your piping - PT is the catalogue standard, with G (BSPP) and NPT (this unit) as order options. Add a gauge with your preferred scale if you want a local pressure readout, decide bracket versus panel mounting, and specify the K option if a reverse/check valve is needed. Because flow is published as curves, not a single rating, ask us to confirm sizing against your actual air demand 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 regulator flow as curves, not as a single rated number, so there is no one figure we can quote honestly. Send us your line pressure, set pressure and air consumption, and we will confirm the sizing from the datasheet curves on request before you order.
No on both counts for this code: the N in GR30015JNT means no gauge is fitted, and J means no mounting bracket is included. Gauges (round or square, with MPa, psi or bar scales) and brackets are orderable options on the GR series, and the regulator body can also be panel-mounted.
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.