The AirTAC GR30015NT AirTAC Air Pressure Regulator NPT 1/2 in 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 GR30015NT is an AirTAC GR-series air pressure regulator in the 300 size with 1/2 in NPT ports. Its only job is pressure regulation: it holds a stable downstream setting between 0.05 and 0.9 MPa (7-130 psi) from an inlet supply of up to 1.0 MPa (145 psi). This unit carries no filter and no bowl, so it is the right choice where the air is already filtered upstream and you only need to set and hold a working pressure. No gauge is fitted on this configuration (code N), so add a gauge separately if you want a visible setting, and the standard mounting bracket is included.
This is a genuine AirTAC part. The GR family spans the 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, gauge, reverse/check valve and panel mounting. Flow 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 | GR30015NT AirTAC Air Pressure Regulator NPT 1/2 in |
|---|---|
| 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 | 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. |
| (blank) | Fixing bracket included. |
| 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 and hold a fixed working pressure for a stamping or forming press fed from a plant air main, where the air is already filtered upstream and only regulation is needed at the 1/2 in drop.
Regulate the supply to cylinders and actuators on a packaging or cartoning line, keeping actuator force consistent as the main header pressure fluctuates during shift changes.
Drop the branch pressure feeding a machine's pneumatic control manifold, with the included bracket mounting the regulator on the panel frame next to the shut-off and filtration stages.
Start with the port step: the 300 size with 1/2 in ports sits in the middle of the GR range, so match it to your line size and required flow - larger sizes (400, 600) carry more flow, smaller ones (200) less. Thread here is NPT (trailing T); PT is the catalogue standard and G is also available to order. The setting range is 0.05-0.9 MPa (7-130 psi); if your working pressure stays at or below 0.4 MPa, the low-pressure type (L) is an alternative to specify. This unit has no gauge (code N) - order one separately if you need to read the setting, and note the bracket is included with panel mounting also possible on GR. Because flow is published as curves rather than a single rating, ask us to confirm sizing against your application 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 GR flow as curves rather than a single rated figure, so we do not quote a rated flow number. Tell us your line pressure, set pressure and the flow your application needs, and we will confirm the sizing from the datasheet on request before you order.
No. The N at the end of GR30015NT means no gauge is fitted. If you want to read the setting, order a gauge separately - the GR family accepts an embedded square gauge or an optional external round gauge, with MPa, psi or bar scales.
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.