The AirTAC GR30008JF2 AirTAC Air Pressure Regulator PT1/4, psi 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 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 GR30008JF2 is an AirTAC GR-series air pressure regulator: it does one job, holding your downstream pressure steady at the setting you choose, and it contains no filter, bowl or lubricator. This GR300 configuration has PT1/4 (1/4 in) ports in the standard type, with an adjustment range of 0.05-0.9 MPa (7-130 psi). The fitted embedded square gauge reads in psi, so operators can set and check pressure directly in US units, and the unit is rated for a maximum inlet pressure of 1.0 MPa (145 psi) at 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 sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options include G (BSPP) or NPT threads, a low-pressure type limited to 0.4 MPa, a reverse/check valve, gauge scale in MPa, psi or bar, and panel mounting - GR is panel-mountable as well as bracket-mounted, and this code is supplied without a bracket. Because flow is published as curves rather than a single rating, we confirm the datasheet and flow figures for your application on request.
| Model | GR30008JF2 AirTAC Air Pressure Regulator PT1/4, psi gauge |
|---|---|
| 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 | Supplied without bracket |
| 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. |
| J | Supplied without bracket. |
| (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.
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, reduced pressure feeding the pick-and-place cylinders on a carton-forming line, so sealing arms and grippers see consistent force from cycle to cycle regardless of header pressure swings.
Regulate the air to a light-duty bench pneumatic press or clamp fixture, letting the operator dial in exactly the holding pressure the workpiece tolerates and read it on the square psi gauge.
Drop branch pressure to the setting a directional valve or air-powered control panel was specified for, protecting downstream components on a machine's PT1/4 instrument-air takeoff.
Start with size and port: GR covers sizes 200/300/400/600, and the step up in size brings a larger port and more flow capacity, so match the GR300's PT1/4 port against the line you are regulating and the flow your actuators need. Next set the gauge: this unit ships with the embedded square gauge scaled in psi; MPa and bar scales are also available if you prefer metric. Choose the thread for your piping - PT is the standard here, with G (BSPP) and NPT as orderable options. If your line never exceeds 0.4 MPa, the GR low-pressure type (code L) is available; if backflow protection matters, the K option adds a reverse/check valve. GR is panel-mountable, and brackets are optional (this code omits the bracket). One honest routing note: AirTAC publishes regulator flow as curves, not a single rated figure, 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 regulator flow as performance curves, not as a single rated number, so there is no one flow figure we can honestly quote for this unit. Tell us your line pressure, set pressure and the flow your actuators draw, and we will confirm the sizing against the datasheet curves on request before you order.
The F2 in GR30008JF2 decodes to the embedded square gauge fitted with a psi scale, which suits US-market setting and checking. Gauge scale is a real catalogue choice - MPa (scale 1), psi (scale 2) or bar (scale 3) - and an external round gauge is also available as an option, so you can order the scale that matches the rest of your panel.
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.