The AirTAC GR40010JC2G 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 GR40010JC2G is an AirTAC GR400 series air pressure regulator for compressed air, built around the 400 size body with a 3/8 in port in G (BSPP) thread. It is a regulation-only device: it holds a steady downstream pressure drawn from the standard 0.05-0.9 MPa (7-130 psi) adjustment range, with a maximum inlet pressure of 1.0 MPa (145 psi). This configuration carries an external round pressure gauge scaled in psi for direct setpoint reading, and the J suffix means no mounting bracket is fitted, so plan for panel or inline mounting - the GR family is also panel-mountable. Operating temperature is -20 to 70 C, wider than the rest of the G-series.
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 options include G (BSPP) or NPT thread in place of the PT standard, a low-pressure type limited to 0.4 MPa, an embedded square gauge, a reverse/check valve, and bracket variants. Flow for this series is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet and sizing figures for your application on request.
| Model | GR40010JC2G AirTAC Air Pressure Regulator G3/8 |
|---|---|
| Series | GR400 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.
| 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. |
| 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 | 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 supply pressure to the machine's pneumatic tool-change and clamping circuits, with the psi-scaled round gauge letting operators verify the setpoint at a glance.
Regulate the pressure feeding conveyor stoppers, pushers and diverters so cylinders cycle consistently along the line, with the 3/8 in G-port suiting the main drop at the station.
Drop the pressure from the plant ring main to the level the looms' pneumatic jet and tension circuits require, holding it steady despite swings in compressor output.
Start with the size and port: 400 is the second-largest GR frame and the 10 position gives a 3/8 in port, so match it against the air demand of the circuit - step up to GR600 or down to GR200/300 if the flow curves indicate a different frame. Then fix the setpoint: the standard type covers 0.05-0.9 MPa (7-130 psi); if your circuit never exceeds 0.4 MPa, the L low-pressure variant exists. This unit ships with a round external gauge on a psi scale; square embedded gauges and MPa or bar scales are the other decodable choices. Thread is G (BSPP) here, with PT as the catalogue standard and NPT available to order. Note the J code: no bracket is included, so add a bracket variant if you need one. Because GR flow is published as curves and not a single rating, send us your application details and we will confirm sizing against the datasheet before you order.
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, not as a single rated number, so we do not quote a flow figure for this regulator. Send us your application details and we will confirm the datasheet and check the sizing against your required flow on request.
This model carries an external round pressure gauge scaled in psi (the C2 code); an embedded square gauge and MPa or bar scales are the alternative catalogue choices. The port thread is G (BSPP); PT is the series standard and NPT is available to order.
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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.