The AirTAC GR30008F1T AirTAC Air Pressure Regulator NPT1/4 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 PT1/4" 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 GR30008F1T is an AirTAC GR-series air pressure regulator in the 300 size with 1/4 in NPT ports. It is a regulation-only unit: it steps compressed air down to a stable working pressure set anywhere in the 0.05-0.9 MPa (7-130 psi) range, with a maximum inlet pressure of 1.0 MPa (145 psi). This configuration carries the standard regulator type, an embedded square gauge scaled in MPa (an external round gauge is optional), and includes a mounting bracket; the GR body is also panel-mountable. Operating temperature is -20 to 70 C, wider than the rest of the G family.
This is a genuine AirTAC part. The GR line spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options for thread type (PT standard, G or NPT), gauge scale (MPa, psi or bar), a low-pressure type limited to 0.4 MPa, a reverse/check valve, and bracket or no-bracket builds. Flow is published as curves rather than a single rating, so we confirm the datasheet figures for your application on request.
| Model | GR30008F1T AirTAC Air Pressure Regulator NPT1/4 |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT1/4" (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, MPa 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. |
|---|---|
| 08 | Port size PT1/4". 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. |
| 1 | Gauge scale: MPa. 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 · PT1/4" · 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, repeatable downstream pressure for clamping cylinders on a machining or assembly fixture, with the MPa gauge giving the operator a direct read of the set point.
Feed a clean, regulated pilot-pressure supply to solenoid valves and pneumatic actuators on a process skid, holding the set pressure steady as plant supply fluctuates.
Regulate the supply to cylinder-driven sealing, forming and eject stations on a packaging line, with the bracket or panel mounting suiting the machine's valve manifold layout.
Start with the size and port: 200, 300, 400 and 600 step up in port size from 1/8 in to 1 in, and the right step depends on the air demand of the circuit downstream - match the port to your piping and let us confirm the flow curve against your consumption before ordering. Then choose the gauge scale (MPa, psi or bar) to suit the people reading it, and the thread: PT is the standard, with G (BSPP) and NPT available as order options - this model is the NPT build. Decide between the standard type and the low-pressure type (set pressure up to 0.4 MPa), whether you want the reverse/check valve fitted, and whether the bracket is included or omitted. Flow is published as curves, not a single rated figure, so ask us to confirm sizing against the application 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-series flow as curves rather than a single rated figure, so we do not quote one number. Tell us your working pressure and air consumption and we will confirm the flow from the datasheet for this 300-size, 1/4 in NPT regulator on request before you order.
This unit is fitted with the embedded square gauge scaled in MPa; psi or bar scales are available as order options. The ports on this build are NPT 1/4 in - PT is the AirTAC standard thread and G (BSPP) is also available, all ordered as specification options rather than a delivery matter.
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.