The AirTAC GR30010C2TK AirTAC Air Regulator 3/8 in NPT 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 GR30010C2TK is an AirTAC GR-series air pressure regulator: it does one job, holding your downstream pressure steady at the setting you choose. This 300-size unit is ordered with a 3/8 in NPT port, an external round pressure gauge scaled in psi, a built-in reverse (check) valve that holds the downstream setting if upstream supply is lost, and the standard mounting bracket. The standard adjustment range is 0.05-0.9 MPa (7-130 psi) and the maximum inlet pressure is 1.0 MPa (145 psi). Operating temperature is -20 to 70 C, wider than the rest of the G-series family, which suits colder installations.
This is a genuine AirTAC part. The GR line is available in 200, 300, 400 and 600 sizes with port options from 1/8 in to 1 in, PT as the standard thread and G (BSPP) or NPT as order options, plus gauge scale, check-valve and low-pressure variants. Flow is published as curves rather than a single rating, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GR30010C2TK AirTAC Air Regulator 3/8 in NPT |
|---|---|
| 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 | 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. |
|---|---|
| 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. |
| (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. |
| T | NPT 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 · 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 stable, reduced pressure feeding a bench or C-frame pneumatic press so the forming or staking force stays repeatable shift after shift; the check valve holds the setting if the shop air dips.
Feed a dedicated zone of a cartoning or wrapping machine at its own set pressure, independent of the main header, with the psi gauge giving operators a local reading at the machine.
Regulate pressure at individual drop lines off a factory air header so each cell or machine gets the pressure it was set up for, with panel or bracket mounting at the point of use.
Size the GR by the flow your line needs: step up through 200, 300, 400 and 600 as port and flow demand grow - this 300 size carries a 3/8 in NPT port. Choose the gauge scale you want to read (MPa, psi or bar; this unit is psi) and decide whether the reverse/check valve is worth having: with the K option fitted, a drop in upstream pressure does not dump your set downstream pressure. Thread is NPT here; PT is the catalogue standard and G (BSPP) can be ordered. A bracket is included and GR also panel-mounts. Because flow is published as curves rather than a single rated figure, send us your application details and we will confirm sizing against the datasheet before you order.
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 regulator flow as curves, not as a single rated number, so we do not quote a figure here. Send us your application details and we will confirm the flow and sizing from the datasheet on request.
K means a reverse (check) valve is fitted. If upstream supply pressure drops away, the valve holds the pressure you set downstream instead of letting it bleed back, which protects settings on cylinders and actuators. This unit also carries a round gauge scaled in psi.
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.