The AirTAC GR30008C2 AirTAC Air Pressure Regulator 1/4 in PT 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 GR30008C2 is an AirTAC GR-series air pressure regulator, a genuine AirTAC part dedicated to one job: holding a stable, adjustable downstream pressure from your compressed-air supply. This GR300 configuration has a 1/4 in PT threaded port, a standard regulation range of 0.05-0.9 MPa (7-130 psi), and a round pressure gauge with a psi scale fitted so the set point can be read directly at the unit. There is no filter, bowl or drain on this family - it is regulation only, so it pairs naturally with a separate filter upstream.
The GR series is offered in sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, thread options PT (standard), G and NPT, gauge scales in MPa, psi or bar, and a low-pressure type for circuits capped at 0.4 MPa. GR units tolerate -20 to 70 C, wider than the rest of the G family. Flow is published as curves rather than a single rated figure, so we confirm the datasheet and sizing figures on request.
| Model | GR30008C2 AirTAC Air Pressure Regulator 1/4 in PT |
|---|---|
| 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 — round, 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). |
| C | Gauge shape: Round. 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 steady, reduced pressure feeding a bank of directional control valves on an automation line, so solenoid valves and cylinders see a consistent supply pressure shift after shift.
Regulate the air to a small clamping or press fixture at the workstation, letting the operator dial in the holding pressure within the 0.05-0.9 MPa range and read it on the fitted psi gauge.
Trim the supply pressure to the sealing and actuation circuits of a packaging machine independently of the main header, with the round gauge giving a local psi readout for setup.
Start with the port step: this unit is the 300 size with a 1/4 in PT port; if your line needs more or less flow capacity, step up or down through the 200/400/600 sizes rather than throttling a mismatched unit. Set the working pressure against the 0.05-0.9 MPa (7-130 psi) range, and choose the gauge scale you want to read - this code carries a round psi gauge, while MPa and bar scales and an embedded square gauge are catalogue options. Thread is PT as standard; G (BSPP) and NPT are order options. A mounting bracket is included, and GR is also panel-mountable.
Because AirTAC publishes flow only as curves and not as a single rated number, ask us to confirm the flow and datasheet figures against your 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 only as curves, not as a single rated figure, so we do not quote a number here. We will confirm the flow and datasheet figures for the GR300 size at 1/4 in on request - just ask before ordering so the unit is sized against your actual air demand.
The GR30008C2 code specifies a round external gauge with a psi scale. Gauge scale is a real decode choice on GR units: MPa, psi and bar scales are catalogue options, and an embedded square gauge is the standard alternative to the external round gauge. Order the code with the scale you want to read at the unit.
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.