The AirTAC GR40010JC2 AirTAC Air Pressure Regulator 3/8in PT 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 GR40010JC2 is a genuine AirTAC GR400 series air pressure regulator for compressed air, built to hold a steady downstream pressure from a variable supply. This configuration is the 400 size with a PT3/8 (3/8 in) port and PT thread as standard. It is the standard type with a regulation range of 0.05-0.9 MPa (7-130 psi) and a maximum inlet pressure of 1.0 MPa (145 psi). The code specifies an external round pressure gauge on the psi scale, and J means no mounting bracket is fitted, so plan for panel or manifold mounting - the GR body is also panel-mountable. Operating temperature is -20 to 70 C, wider than the rest of the G family. As a regulator, the GR40010JC2 does not filter or lubricate the air; pair it with a separate filter if the line needs one.
This is a genuine AirTAC part. The GR series spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, and options including G (BSPP) or NPT threads, a low-pressure type, a reverse/check valve, and gauge scale choices. Flow is published as curves rather than a single rated figure, so contact us and we will confirm the datasheet and sizing figures for your application on request.
| Model | GR40010JC2 AirTAC Air Pressure Regulator 3/8in PT |
|---|---|
| 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 | 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. |
| (blank) | PT 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 |
On a bench or C-frame pneumatic press, the GR40010JC2 sets and holds the working pressure to the press cylinder so forming and staking force stays repeatable from part to part, with the psi gauge giving the operator a direct setpoint readout.
On a carton sealing or case packing line, this regulator feeds the seal, clamp and pusher actuators at a fixed downstream pressure, keeping stroke timing consistent as the compressor header pressure drifts through the shift.
On a multi-circuit machine air board, the GR40010JC2 drops the 3/8 in branch feeding one zone of valves or grippers to its own setpoint, isolating that circuit from header pressure swings without touching the other branches.
Start with the port and flow step: the 400 size with a 3/8 in port sits mid-range in the GR series (200/300/400/600), so step up or down a size if your line flow demands it - ask us to confirm the flow curve against your air demand before ordering. This unit is the standard type with a 0.05-0.9 MPa (7-130 psi) regulation range; if your setpoint stays below 0.4 MPa, the L low-pressure variant of the same series is an alternative. Gauge scale is decodable: this code carries a round gauge on psi (scales 1/2/3 give MPa/psi/bar, and N deletes the gauge). Thread is PT as standard, with G (BSPP) and NPT as order options. J means no bracket is fitted; omit J if you want the bracket. Flow is published as curves, not a single rating, so send us your application details and we will confirm sizing from the datasheet.
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 flow as curves rather than a single rated figure, so we do not quote a rated flow, Cv or SCFM number for this unit. Tell us your application - supply pressure, setpoint and expected air demand - and we will confirm the datasheet and flow curve figures for the GR400 size on request before you order.
In GR40010JC2, the 400 is the size, 10 is the PT3/8 (3/8 in) port, J means no mounting bracket is fitted, C is the external round gauge, and 2 is the psi scale. All of these are real catalogue choices: the bracket can be included, the gauge can be square or omitted (N), the scale can be MPa, psi or bar, and G (BSPP) or NPT threads are available as order options alongside the standard PT.
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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.