The AirTAC GR40010JF2 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 GR40010JF2 is an AirTAC GR400 series air pressure regulator for compressed air, built purely for downstream pressure control - no filter element and no bowl, so nothing in the air path but the regulating valve. This configuration is the 400 size with a PT3/8 (3/8 inch) port, PT thread as standard, and a standard regulating range of 0.05-0.9 MPa (7-130 psi). The J code means no mounting bracket is supplied, and the F2 code fits the embedded square pressure gauge with a psi scale; an external round gauge is available as an option. Maximum inlet pressure is 1.0 MPa (145 psi), and the operating temperature range is -20 to 70 C - wider than the rest of the G-series treatment units. The GR body is also panel-mountable if you prefer that over a bracket.
This is a genuine AirTAC part. The GR family spans sizes 200, 300, 400 and 600, with port sizes from 1/8 to 1 inch, G (BSPP) and NPT thread options to order, low-pressure (L) variants, and gauge or no-gauge configurations. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application before ordering.
| Model | GR40010JF2 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 — square, 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). |
| F | Gauge shape: Square. 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 |
Set and hold a stable working pressure to a pneumatic press or clamping cylinder, with the psi-scale square gauge giving the operator a direct reading at the setpoint.
Regulate the supply pressure feeding air cylinders on a packaging or cartoning conveyor line, keeping actuation consistent as upstream compressor pressure drifts.
Drop main line pressure to the lower, controlled level a machine tool's pneumatic circuit or air-bearing-assisted fixture needs, mounted by panel or on request with a bracket.
Size and port are the first decision: the GR400 with its 3/8 inch PT port sits in the middle of the GR range (200/300/400/600), and the right step depends on the flow your line needs - which we confirm against the published flow curves rather than a single rated number, so send us your demand figures. Next, set the gauge: this unit carries the embedded square gauge with a psi scale (code F2); MPa and bar scales and an external round gauge are the other catalogue choices. Thread is PT as standard on this code, with G (BSPP) and NPT available as order options. The J code means no bracket is fitted, but the GR body can be panel-mounted instead. Regulation range for this standard GR is 0.05-0.9 MPa (7-130 psi); if your setpoint must go below that band, ask about the low-pressure (L) type before ordering.
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 regulator flow as curves, not as a single rated figure, so we do not quote a rated flow number. Tell us your line pressure and the air demand of the equipment downstream, and we will confirm the sizing against the datasheet curves on request before you order.
In the GR code, F2 means the embedded square pressure gauge is fitted with a psi scale (MPa and bar scales are the other options), and J means no mounting bracket is supplied. The GR400 body is also panel-mountable, and G (BSPP) or NPT threads can be ordered instead of the standard PT3/8.
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.