The AirTAC GR30010JC2TK 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 GR30010JC2TK 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 GR300 configuration carries a 3/8 in NPT port and a standard regulation range of 0.05-0.9 MPa (7-130 psi), with a maximum inlet pressure of 1.0 MPa (145 psi). The code specifies a round external gauge with a psi scale, a built-in reverse (check) valve that lets downstream air bleed back when the inlet is depressurised, and no mounting bracket - the GR body is also panel-mountable. As a pure regulator it contains no filter, no bowl and no drain, and it suits ambient temperatures from -20 to 70 C, wider than the rest of the G family.
This is a genuine AirTAC part. The GR line spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and is ordered with your choice of thread (PT standard, G or NPT), gauge type and scale, low-pressure variant, reverse valve and bracket. 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 | GR30010JC2TK 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, 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. |
| 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. |
| 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 holding pressure for clamp cylinders on a CNC fixture line, with the psi gauge giving the operator a direct local readout and the check valve holding the circuit while the main supply is shut off.
Feed the sealing and forming cylinders of a packaging line from a plant-air drop, trimming branch pressure down from the 1.0 MPa header to the level the machine's actuators were designed for.
Give each bench on a manual assembly line its own 3/8 in regulated take-off, so screwdrivers, air cylinders and grippers see consistent pressure regardless of what neighbouring stations are drawing.
Start with the port step: GR300 with its 3/8 in port sits mid-range in the GR family (200/300/400/600), so step up or down according to the air demand of the circuit it feeds - we can check the published flow curves against your requirement before you order. Then fix the options that this code shows: a round psi-scale gauge (square embedded and MPa/bar scales are alternatives), a reverse/check valve for circuits that must exhaust downstream, NPT thread where PT or G is not wanted, and no bracket if you panel-mount. A low-pressure L variant (up to 0.4 MPa) exists if your setpoint sits near the bottom of the standard 0.05-0.9 MPa range.
One honest note on sizing: AirTAC publishes regulator flow as curves, not as a single rated number, so we do not quote a flow figure here. Send us your application details and we will confirm the correct size from the datasheet on request.
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 rather than a single rated figure, so no flow number is quoted here. Tell us your application and we will confirm the relevant flow-curve and datasheet figures for the GR300 on request before you order.
In GR30010JC2TK the C2 selects a round external gauge with a psi scale (an embedded square gauge and MPa or bar scales are the alternatives), and K specifies a built-in reverse/check valve that allows downstream air to exhaust back when the upstream side is depressurised. J means no mounting bracket is fitted; the GR body can also be panel-mounted.
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.