The AirTAC GR30010F3T AirTAC Air Regulator NPT 3/8 in, Bar Gauge 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 PT3/8" 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 GR30010F3T is an AirTAC GR-series air pressure regulator: it does one job, holding downstream pressure steady at the value you set, and it does no filtering and no lubrication. This 300-size unit is threaded NPT 3/8 in, and the F3 suffix means a square pressure gauge is fitted reading in bar. The standard version covers a set-point range of 0.05-0.9 MPa (7-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and it operates in ambient temperatures from -20 to 70 C - a wider window than the rest of the G family, which suits cold or unheated plant areas.
This is a genuine AirTAC part. The GR line is available in 200, 300, 400 and 600 sizes with port options from 1/8 in to 1 in, a low-pressure type (up to 0.4 MPa), gauge scales in MPa, psi or bar, an optional reverse/check valve, and PT, G or NPT threads. Flow for this series is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures against your application on request.
| Model | GR30010F3T AirTAC Air Regulator NPT 3/8 in, Bar Gauge |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT3/8" (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. |
|---|---|
| 10 | Port size PT3/8". 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 · PT3/8" · 0.05 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR200 |
| One size up | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Holds a steady set pressure to the pneumatic clamps and workholding actuators on a machining centre, so fixture force stays consistent part after part.
Sits in the air line feeding the cylinders on a carton or bag packaging line, letting the technician dial in the exact pressure the sealing and forming motions need.
Regulates the compressed air supplied to benchtop lab equipment and analytical instruments that require a fixed, repeatable supply pressure at their inlet.
Start with the port step: GR sizes run 200, 300, 400 and 600, stepping up in port and capacity, so pick the size whose flow curve covers your air demand - we can confirm the curve data before you order. Then set the options that matter: this unit carries the standard 0.05-0.9 MPa (7-130 psi) range, while the low-pressure L type caps at 0.4 MPa if your process sits lower; the gauge can read MPa, psi or bar (this one is bar); and the thread can be PT (standard), G or NPT (this one is NPT). A mounting bracket is included, and GR is also panel-mountable. Because flow is published as curves and not a single rating, send us your application conditions and we will confirm sizing on request.
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, not as a single rated figure, so we do not quote a number here. Tell us your line pressure, set pressure and air demand, and we will confirm the datasheet curve data for the 300 size against your application on request.
F is the square gauge and 3 is the bar scale, so this unit ships with an embedded square gauge reading in bar. The same regulator can be ordered with scales 1 (MPa) or 2 (psi), and an external round gauge is also available as an option.
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.