The AirTAC GR30008C1T 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 GR30008C1T is an AirTAC GR-series air pressure regulator: its only job is to hold a steady, adjustable downstream pressure from a compressed-air supply. This configuration is the GR300 size with a 1/4 in NPT port, the standard (non low-pressure) regulator type with an adjustment range of 0.05-0.9 MPa (7-130 psi) against a maximum inlet pressure of 1.0 MPa (145 psi). It is fitted with an external round pressure gauge scaled in MPa, and a mounting bracket is included; the GR body is also panel-mountable. As a pure regulator it contains no filter, no drain bowl and no lubricator, and it suits working temperatures from -20 to 70 C - a wider window than the rest of the G family.
This is a genuine AirTAC part from the GR300 size class, one of four GR sizes (200/300/400/600) stepping up in port and flow capacity. Order-time options across the series include G (BSPP) and NPT thread variants, psi or bar gauge scales, a low-pressure type limited to 0.4 MPa, a reverse/check valve version, and a no-bracket variant. 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 | GR30008C1T 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 — round, MPa 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. |
| 1 | Gauge scale: MPa. 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 |
On a machining cell, the GR30008C1T sits downstream of the plant FRL and holds the fixed pressure a pneumatic clamping fixture needs, so workholding force stays repeatable part after part. The round MPa gauge lets the setter read the setpoint directly.
On a packaging line, case erectors and pusher cylinders run best at a set pressure below header pressure. This regulator in the 1/4 in NPT drop feeds that conveyor circuit, and the included bracket mounts it at the machine frame.
Where a plant air main drops to an assembly work cell, this GR300 regulator gives each cell its own stable pressure instead of relying on the header. Its -20 to 70 C range suits unheated corners of the shop floor in winter.
Choose the GR size by the port and flow your line needs: GR300 with its 1/4 in port sits in the middle of the 200/300/400/600 step, and the right size is the one whose flow curve covers your consumption at an acceptable pressure drop - we can check that against the datasheet before you order. Pick the gauge scale to suit your team (MPa, psi or bar; this unit ships with the round MPa gauge). Thread is decodable: PT is the catalogue standard, while G (BSPP) and NPT are order options - this model is the NPT version. If your setpoint never exceeds 0.4 MPa, the L low-pressure type is available; if the line must keep flowing on supply failure, specify the K reverse/check valve version. Bracket is included as standard (J deletes it).
One honest note on sizing: AirTAC publishes GR flow as curves, not a single rated number, so there is no figure we can fairly quote here. Tell us your flow and pressure targets and we will confirm the fit from the datasheet on request 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 figure, so there is no one flow number we can honestly state. Send us your required flow and upstream/downstream pressures and we will confirm the sizing from the datasheet on request before you order.
C is the round external pressure gauge option and 1 is the MPa scale, so this unit arrives with a round MPa gauge fitted. If your team works in psi or bar, the corresponding gauge scale codes (2 or 3) are available in the series, and N specifies no gauge.
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.