The AirTAC GR30010JC1T AirTAC Air Pressure Regulator NPT3/8 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 PT3/8" 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 GR30010JC1T is an AirTAC GR-series air pressure regulator for compressed air only. It reduces and holds a stable downstream pressure set anywhere in its 0.05-0.9 MPa (7-130 psi) adjustment range, with a maximum inlet pressure of 1.0 MPa (145 psi). This configuration is the 300 size with a 3/8 in NPT port, the standard regulator type, and it comes fitted with an external round pressure gauge scaled in MPa. No mounting bracket is included, and the GR body can also be panel-mounted.
This is a genuine AirTAC part. The GR family spans four sizes (200, 300, 400, 600) with ports from 1/8 in to 1 in, gauge scales in MPa, psi or bar, a low-pressure type limited to 0.4 MPa, and an optional reverse/check valve. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application on request.
| Model | GR30010JC1T AirTAC Air Pressure Regulator NPT3/8 |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT3/8" (NPT 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 — 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. |
|---|---|
| 10 | Port size PT3/8". 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). |
| 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 · PT3/8" · 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 fixed working pressure for a bench or production pneumatic press so the ram and clamping cylinders see a consistent, repeatable force from the shop-air main.
Feed tool-change cylinders, air chucks and purge lines on a machining centre from a regulated 3/8 in branch, keeping actuator pressure steady as the main line pressure wanders.
Regulate the supply to sealing jaws, diverters and gripper cylinders on a cartoning or wrapping line, with the MPa gauge giving the operator a clear set-point reference.
Choose the size and port step against the air demand of the circuit: the GR300 with its 3/8 in NPT port sits in the middle of the range, with 200, 400 and 600 sizes available for smaller or larger flows. Because flow is published as curves and not as a single rating, ask us to confirm sizing against your application before ordering. This unit has the round gauge on the MPa scale; psi and bar scales are available if you prefer. The thread here is NPT - PT is the standard thread and G (BSPP) is also a catalogue option to order. A low-pressure type (up to 0.4 MPa) and a reverse/check valve are other decodable options, and a mounting bracket can be specified where the J (no bracket) version does not suit.
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 curves rather than a single rated figure, so no rated flow, Cv or SCFM number can be quoted here. Send us your application details and we will confirm the datasheet and check the sizing against your required flow on request.
The GR30010JC1T is supplied with an external round pressure gauge scaled in MPa (scale code 1). If your team works in psi or bar, the corresponding gauge scales are available as catalogue options - just specify scale 2 (psi) or 3 (bar) when ordering.
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.