The AirTAC GR40010JC2K AirTAC Air Pressure Regulator, PT3/8 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 GR40010JC2K is an AirTAC GR-series air pressure regulator for compressed air, and regulation is all it does: there is no filter, no bowl and no lubrication in this unit. This 400-size configuration carries a PT3/8 (3/8 in) port, an external round pressure gauge scaled in psi, and a built-in reverse (check) valve that lets downstream pressure hold rather than bleed back through the regulator. It is ordered without a mounting bracket, and the GR body is also panel-mountable. The set pressure is adjusted across 0.05-0.9 MPa (7-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the unit operates from -20 to 70 C - a wider temperature window 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 options from 1/8 in to 1 in, and choices include thread type (PT standard, with G and NPT as orderable options), gauge type and scale, a low-pressure type (up to 0.4 MPa), and a reverse/check valve. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet flow figures for this exact model against your application.
| Model | GR40010JC2K AirTAC Air Pressure Regulator, PT3/8 |
|---|---|
| Series | GR400 pressure regulator |
| Port size | PT3/8" (PT 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.
| GR400 | G-series pressure regulator, 400 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". This body offers 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. |
| (blank) | PT 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 | GR400 · PT3/8" · 0.05 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR300 |
| One size up | GR600 |
| Line order | Filter first, then regulator, then lubricator |
Set a stable, repeatable working pressure to a clamping or press cylinder so the holding force on the fixture stays consistent across every cycle of the job.
Feed carton sealers, case erectors and wrapping heads from a regulated drop so actuators and air jets on the line see one steady pressure instead of header swings.
Regulate the supply to gripper cylinders and tool-clamp circuits on a robotic cell, with the check valve holding the set pressure if the upstream supply is interrupted.
Size and port are the first real choice: GR200 through GR600 step up in both port size and flow capacity, so pick the size whose flow curve covers your machine's air demand at working pressure - this 400-size unit sits on a PT3/8 port. Then decide the gauge: this code carries an external round gauge scaled in psi; square embedded gauges and MPa or bar scales are the other decodable options. The K in this code fits a reverse/check valve - choose it when downstream pressure must be held if upstream supply drops. Thread is PT as standard, with G (BSPP) and NPT available to order as specifications, not delivery promises. Bracket is omitted here (J), and GR can also be panel-mounted. One honest routing note: flow is published as curves, not a single rating, so ask us to confirm sizing against your application before ordering.
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 GR flow as curves, not as a single rated number, so we do not quote a flow figure for this model. Send us your line pressure, set pressure and the air demand of your equipment, and we will confirm the datasheet flow figures for the GR400 at PT3/8 against your application before you order.
The K in GR40010JC2K means a reverse (check) valve is fitted: downstream pressure is held instead of bleeding back through the regulator when upstream supply drops - useful on circuits that must hold position or clamping force. The C2 means an external round gauge scaled in psi is included; square embedded gauges and MPa or bar scales are available as other catalogue options.
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.