The AirTAC GR30010JC2G AirTAC Air Pressure Regulator G3/8 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 AirTAC GR30010JC2G is a compressed-air pressure regulator from the GR300 series: it reduces and holds a stable downstream pressure from a variable shop-air supply, and it does nothing else - no filtration, no bowl, no lubrication. This configuration is the 300 size with a G3/8 (BSPP) female port, the standard (not low-pressure) regulator type covering 0.05-0.9 MPa (7-130 psi) of set-point adjustment, and a round pressure gauge fitted reading in psi. The J suffix means no mounting bracket is supplied; the unit can still be panel-mounted, and no reverse (check) valve is fitted.
This is a genuine AirTAC part. The GR family spans sizes 200, 300, 400 and 600 with ports from 1/8 in to 1 in, and can be ordered with G (BSPP) or NPT threads instead of the PT standard, with or without a bracket, gauge or scale variant, with a low-pressure type (L) limited to 0.4 MPa, and with a reverse/check valve (K). Flow for this series is published as curves rather than a single rated figure, so we confirm the datasheet and flow figures for your application on request.
| Model | GR30010JC2G AirTAC Air Pressure Regulator G3/8 |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT3/8" (G (BSPP) 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, 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. |
|---|---|
| 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. |
| 2 | Gauge scale: psi. 1 is MPa, 2 is psi, 3 is bar. |
| G | G (BSPP) 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 |
On a bench-mounted pneumatic press or clamping fixture, the GR30010JC2G sits in the 3/8 in supply line ahead of the directional valve, letting the operator dial in and hold the cylinder working pressure that the tooling was designed for.
On a cartoning or case-packing line, this regulator feeds the 3/8 in branch that drives sealing bars and pusher cylinders, keeping actuator speed and gentle handling consistent even as the compressor header pressure wanders through the shift.
On a robotic pick-and-place cell, the unit regulates the supply to gripper and vacuum-generator circuits, with the fitted round psi gauge letting the technician verify set points at the panel during changeover without a separate test gauge.
Start with the port and size step: the 300 size carries a 3/8 in port, and the right step is the one whose published flow curve covers your machine's air demand at an acceptable pressure drop - upsizing to the 400 or 600 body reduces drop if your consumption is high. Set the adjustment range you need: this standard type covers 0.05-0.9 MPa (7-130 psi); if your line runs below 0.4 MPa, the low-pressure L type is the dedicated choice. Choose the gauge to match your reading habit - embedded square or external round, scaled in MPa, psi (as fitted here) or bar. Decide the thread: PT is the catalogue standard, with G (BSPP) and NPT available as order options - this unit is G. Finally, bracket or no bracket (this one has none) and whether a reverse/check valve (K) is wanted.
Because flow is published as curves and not as a single rated number, ask us to confirm sizing against your application before ordering - we will check the datasheet curve for the GR300-10 against your flow and pressure conditions.
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 regulator performance as flow curves rather than a single rated figure, so we do not quote a SCFM, l/min or Cv number on the page. Tell us your line pressure, set pressure and air consumption, and we will confirm the datasheet flow curve for the GR300-10 against your application on request before you order.
The C2 in the code means a round external gauge is fitted, scaled in psi (scale 2); the catalogue also offers an embedded square gauge and MPa (1) or bar (3) scales. The regulator itself adjusts from 0.05-0.9 MPa (7-130 psi) regardless of gauge scale, and the round gauge is simply the reading option chosen for this configuration.
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.