AirTAC GR300-08 Pressure Regulator (GR30008F2)
The AirTAC AirTAC GR300-08 Pressure Regulator (GR30008F2) 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.
- TypePressure regulator
- Port sizePT1/4"
- Regulating range0.05 - 0.9 MPa (7 - 130 psi)
- Pressure typeStandard type
- Pressure gaugeFitted
- Reflux valveNot fitted
- ThreadPT
- BracketFixing bracket included
About the AirTAC GR300-08 Pressure Regulator (GR30008F2)
The GR30008F2 is a genuine AirTAC G-series air pressure regulator built purely for regulation: it sets and holds downstream pressure from a compressed-air supply, with no filtering or lubrication function. This 300-size unit has a 1/4 in PT port and an embedded square pressure gauge scaled in psi, so setpoints can be read directly in US units. Set range is 0.05-0.9 MPa (7-130 psi), max inlet pressure is 1.0 MPa (145 psi), and the service temperature range is -20 to 70 C.
This is a genuine AirTAC part in the G series, offered in 200/300/400/600 sizes with 1/8 in to 1 in ports. You choose the gauge scale (MPa, psi or bar square gauge, or no gauge), the thread (PT standard, G and NPT as options) and bracket needs per code. We confirm flow and datasheet figures on request, since flow is published as curves rather than a single rated number.
AirTAC GR300-08 Pressure Regulator (GR30008F2) Technical Specifications
| Model | AirTAC GR300-08 Pressure Regulator (GR30008F2) |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT1/4" (PT 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.
Model Code: AirTAC GR300-08 Pressure Regulator (GR30008F2)
| 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. |
| (blank) | PT 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.
Size Class
- GR200PT1/8" - PT1/4"
- GR300PT1/4" - PT1/2"
- GR400PT3/8" - PT1/2"
- GR600PT3/4" - PT1"
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 |
Where the AirTAC GR300-08 Pressure Regulator (GR30008F2) Is Used
Assembly bench air tools
Feed impact drivers, nutrunners and air ratchets at a workbench through this regulator so tool torque stays consistent, with the psi gauge letting technicians set and verify the supply at a glance.
Blow-off station on a filling line
Regulate the air to nozzle manifolds that dry or clean bottles and containers, trimming pressure to exactly what the task needs and keeping it steady as upstream demand on the plant compressor fluctuates.
PLC-controlled pick-and-place cell
Give each suction-cup or gripper circuit in a robotic handling cell its own 1/4 in regulated supply, so engineers can tune holding force per station without affecting the rest of the machine.
Is the AirTAC GR300-08 Pressure Regulator (GR30008F2) the Right Regulator?
Pick your size by air demand: 200, 300, 400 and 600 in the G series step up in port and flow, and this 300 unit carries a 1/4 in PT port. The standalone GR set range is 0.05-0.9 MPa (7-130 psi), and the square gauge here is scaled in psi; MPa and bar gauge versions, and a no-gauge (N) version, exist in the same size. Thread: PT is the standard; G (BSPP) and NPT are catalogue options to order. A mounting bracket is included, and the GR can also be panel mounted. Flow for this series is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
Quick checklist
- ✓ Body size for your peak flow (PT1/4" here)
- ✓ Standard 0.9 MPa or low-pressure 0.4 MPa
- ✓ Gauge fitted, or order N without
- ✓ Gauge shape C round / F square
- ✓ Scale MPa (1), psi (2) or bar (3)
- ✓ Reflux valve needed, order K
Installation & Maintenance Notes
- check Install downstream of the filter, following the airflow arrow.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Set pressure while air is flowing, then lock the knob.
- check Adjust within 0.05 - 0.9 MPa (7 - 130 psi) only.
- check Operating range -20 to +70 °C.
- check Panel-mount or use the fixing bracket; do not hang it on tubing.
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 GR300-08 Pressure Regulator (GR30008F2) FAQ
There is no single rated flow figure for this regulator: AirTAC publishes flow as characteristic curves that depend on inlet pressure, set pressure and the pressure drop you can accept. Tell us those three values and we will confirm the right size from the datasheet curves on request.
Yes. The F2 code here means the embedded square gauge with a psi scale; the same size is available with an MPa scale (F1), a bar scale (F3) or no gauge (N), and a reverse/check valve can be specified with K. Thread-wise, PT is the standard; G (BSPP) and NPT versions are catalogue options you can order.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Request a Quote for AirTAC GR300-08 Pressure Regulator (GR30008F2)
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.