The AirTAC GR30015F3T 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 GR30015F3T is an AirTAC GR-series air pressure regulator in the 300 size with a 1/2 in NPT port. It does one job only: reducing and holding downstream pressure, adjustable across 0.05-0.9 MPa (7-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi). This configuration carries the embedded square gauge with a bar scale (an external round gauge is optional), includes the mounting bracket, and is also panel-mountable. There is no filter, no bowl and no drain in this unit - it is regulation only. Operating temperature is -20 to 70 C, wider than the rest of the G-series family.
This is a genuine AirTAC part. The GR line spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, thread options PT (standard), G and NPT, gauge scales in MPa, psi or bar, a low-pressure type limited to 0.4 MPa, and an optional reverse/check valve. Flow for this series is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application on request.
| Model | GR30015F3T 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 | Fixing bracket included |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -20 to +70 °C |
| Pressure gauge | Fitted — square, 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. |
| (blank) | Fixing bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| F | Gauge shape: Square. 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 a stable holding pressure downstream for air-actuated clamps on a stamping or welding press, so clamp force stays consistent from part to part.
Feed carton-sealing and case-erecting cylinders at a set pressure so boxes are handled firmly without crushing, independent of plant air swings.
Regulate supply pressure to tool-changers, workholding fixtures and pneumatic actuators on a CNC cell, protecting downstream components from inlet surges.
Choose the GR size by port and required flow: this 300 unit takes a 1/2 in NPT port, and the series steps through 200, 400 and 600 for smaller or larger lines. Set the gauge scale to match your reading habit - MPa, psi or bar; this code specifies the square gauge in bar. Thread is NPT here; PT is the standard option and G is also available to order. The bracket is included, and GR can also be panel-mounted. If your circuit needs a reverse/check valve or a low-pressure setting up to 0.4 MPa, those are separate orderable options. Flow is published as curves, not a single rating, so 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-series flow as curves rather than a single rated figure, so we do not quote a rated flow number. Tell us your application and we will confirm the datasheet flow figures for this 300-size, 1/2 in NPT regulator on request.
The code F3 specifies the embedded square gauge with a bar scale. Gauge scales in MPa and psi are available as alternative orderable options, and an external round gauge can be specified instead of the square gauge.
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.