The AirTAC GR30008C2K AirTAC Air Pressure Regulator PT1/4 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 AirTAC GR30008C2K is an air pressure regulator in the GR300 size, fitted with a PT1/4 (1/4 in) port. It does one job only: reducing and holding a stable downstream pressure from a compressed-air supply, with a regulation range of 0.05-0.9 MPa (7-130 psi) and a maximum inlet pressure of 1.0 MPa (145 psi). This configuration carries the K code, so a reverse/check valve is fitted to hold the set pressure if the upstream supply drops, and the C2 code means an external round gauge on a psi scale is specified. The GR family works from -20 to 70 C, a wider temperature window than the rest of the G series, and a mounting bracket is included; GR is also panel-mountable.
This is a genuine AirTAC part. The GR line is offered in sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, in PT (standard), G (BSPP) or NPT thread, with a low-pressure type (L) available up to 0.4 MPa and gauge scales in MPa, psi or bar. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GR30008C2K AirTAC Air Pressure Regulator PT1/4 |
|---|---|
| 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 | Fitted (reverse flow permitted) |
| 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. |
| K | Reverse-flow (reflux) valve fitted. |
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 |
Sets and holds the clamp pressure on a CNC fixture-actuation circuit, with the check valve helping keep the setting if the main supply dips mid-cycle.
Drops plant air to the pressure a packaging machine's cylinders and actuators were designed for, read directly on the round psi gauge.
Regulates the supply to sorting gates, stoppers and pushers on a conveyor line so divert actions run at a consistent, repeatable setting.
Start with the size and port: GR300 with a PT1/4 port suits lines plumbed in 1/4 in, and larger sizes (400, 600) give larger ports and more flow. Match the gauge scale to your team - this unit is specified with a round gauge in psi, but MPa and bar scales are also available. If your supply can dip, the K code (check valve fitted, as here) holds the downstream setting; leave it off if you do not need that. Choose PT as the standard thread, or order G (BSPP) or NPT as catalogue options. A low-pressure type (L) exists for setpoints up to 0.4 MPa. Flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
Quick checklist
The reflux valve lets air flow back through the regulator, which is useful when downstream volume must vent quickly. A regulator does not remove water or particulate; that is the filter's job.
AirTAC publishes GR flow as curves, not as a single rated figure, so we do not quote a number here. Send us your application details and we will confirm the datasheet flow figures for the GR300 at your operating conditions on request.
K means a reverse/check valve is fitted, which helps hold the downstream setting if upstream pressure drops. C2 means the optional external round gauge is specified on a psi scale; the embedded square gauge is standard, and MPa or bar scales can be ordered instead.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.