The AirTAC GR30008F2T 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 GR30008F2T is an AirTAC GR-series air pressure regulator: it does one job, holding a stable downstream pressure from a compressed-air supply. This GR300 configuration has 1/4 in NPT ports, a standard regulation range of 0.05-0.9 MPa (7-130 psi) and a maximum inlet pressure of 1.0 MPa (145 psi). A square pressure gauge is fitted so the set point can be read directly at the unit, the mounting bracket is included, and the GR body is also panel-mountable. As a pure regulator it contains no filter, no drain bowl and no lubricator - pair it with a GF filter upstream if the air needs cleaning. The GR series handles -20 to 70 C, a wider temperature window than the rest of the G family.
This is a genuine AirTAC part. The GR line spans four sizes (200, 300, 400, 600) with ports from 1/8 to 1 in, so the same family covers small point-of-use regulation up to main-line pressure control. Options include G or NPT thread variants, low-pressure (L) types, a reverse/check valve, and gauge scales in MPa, psi or bar. We confirm flow and datasheet figures on request - just ask before ordering.
| Model | GR30008F2T 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, psi 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. |
| 2 | Gauge scale: psi. 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 |
Drop the compressor header pressure to a stable, lower working pressure for a production hall, protecting downstream equipment and avoiding wasted energy from over-pressurised air.
Set a repeatable holding pressure for air-operated clamps and light pneumatic presses on an assembly line, where a drifting set point would affect part seating or cycle quality.
Regulate the supply to cylinders, air cylinders and actuator banks on wrapping and cartoning machines, keeping seal arms and pushers running at a consistent, tunable pressure.
Size the GR by port and expected flow: 200 covers 1/8-1/4 in ports, 300 covers 1/4-3/8 in, 400 covers 1/2-3/4 in and 600 covers 1 in, with larger sizes moving more air. Choose the gauge scale to match your plant - this unit carries the psi (scale 2) square gauge, while MPa and bar scales are available. Thread is PT as standard; G (BSPP) and NPT are orderable options, and this model is specified in NPT. If your set point never exceeds 0.4 MPa, the low-pressure L type gives finer control; add K if a reverse/check valve is wanted. A bracket is included and panel mounting is possible.
One honest note on sizing: AirTAC publishes GR flow as curves, not a single rated figure, so we do not quote a flow number here. Send us your application details and we will confirm the right size against the datasheet curves 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 performance curves rather than a single rated number, so we do not state a flow figure. Ask us and we will confirm the flow for the GR300 at your inlet and set pressures directly from the datasheet before you order.
This model is fitted with the embedded square gauge on the psi (scale 2) scale, matching its NPT1/4 US-market ports. MPa and bar scales are available as alternatives, and an external round gauge is an option if you prefer that style.
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.