The AirTAC GR40010JC1TK AirTAC Air Pressure Regulator NPT 3/8 in 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 GR40010JC1TK is an AirTAC GR400 series air pressure regulator for compressed air, built around a 3/8 in NPT port. This configuration is the standard regulator type with an adjustment range of 0.05-0.9 MPa (7-130 psi), a round external pressure gauge fitted and scaled in MPa, and a reverse (check) valve fitted so downstream pressure is held if the supply side drops. No mounting bracket is included with this code, and the GR body is also panel-mountable. GR regulators carry no filter, no bowl and no drain - this unit does one job: holding a set downstream pressure.
This is a genuine AirTAC part. The GR family spans four sizes (200, 300, 400, 600) with stepped ports, optional G (BSPP) or NPT thread in place of the PT standard, an optional low-pressure type limited to 0.4 MPa, gauge scale choices of MPa, psi or bar, and bracket or no-bracket variants. Flow for the GR400 is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures against your application on request.
| Model | GR40010JC1TK AirTAC Air Pressure Regulator NPT 3/8 in |
|---|---|
| Series | GR400 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, MPa 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. |
| 1 | Gauge scale: MPa. 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 | 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 downstream pressure feeding the tool-changer and clamping valves on a machining centre, with the check valve holding the circuit if the shop-air main dips mid-cycle.
Regulate the pressure to pneumatic clamps and hold-down cylinders on a carton-sealing or wrapping line, tuned from the round MPa gauge to the force the product needs.
Trim the air pressure to spray guns or coating applicators at a finishing station, where a steady, repeatable setting from the regulator keeps the finish consistent across shifts.
Size the GR by port and flow: the 400 size sits in the middle of the 200/300/400/600 range, and the 3/8 in port here is the NPT thread variant - PT is the catalogue standard, with G (BSPP) and NPT ordered as options. Set the gauge scale to match your plant: this code carries a round gauge in MPa, but psi and bar scales exist. Choose the standard type for the full 0.05-0.9 MPa (7-130 psi) adjustment range, or the L low-pressure type where the circuit never exceeds 0.4 MPa. The K code here means a reverse/check valve is fitted; omit it if you do not need downstream pressure retention. Bracket choice is free - this code ships without one, and GR is also panel-mountable.
One honest note before you order: AirTAC publishes GR flow as curves, not as a single rated number, so we do not quote a flow figure here. Send us your line conditions and we will confirm sizing from the datasheet before you commit.
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 GR400 flow as performance curves rather than a single rated figure, so we do not quote a flow number here. Tell us your line pressure, downstream setting and expected air demand, and we will confirm the sizing from the datasheet on request before you order.
K means a reverse (check) valve is fitted, so downstream pressure is retained if the upstream supply falls away - useful on circuits that must hold position. The C in this code is the round external gauge scaled in MPa; the GR range also offers an embedded square gauge, psi or bar scales, and no-gauge variants, all selectable in the model code.
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.