The AirTAC GR40015JF3T AirTAC Air Pressure Regulator NPT1/2 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 PT1/2" 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 GR40015JF3T is an AirTAC GR-series air pressure regulator: it does one job, holding a stable downstream pressure from a compressed-air supply, and it contains no filter, no bowl and no lubricator. This 400-size unit is decoded with 1/2 in NPT ports, the standard regulator type, a fitted embedded square gauge reading in bar, and no mounting bracket (J code). The setting range is 0.05-0.9 MPa (7-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the GR family operates from -20 to 70 C, a wider temperature window 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, in PT (standard), G and NPT threads, with or without a bracket, with or without a gauge in MPa, psi or bar scales, and a low-pressure type (L) limited to 0.4 MPa. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing figures for your application on request.
| Model | GR40015JF3T AirTAC Air Pressure Regulator NPT1/2 |
|---|---|
| Series | GR400 pressure regulator |
| Port size | PT1/2" (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 — square, bar 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. |
|---|---|
| 15 | Port size PT1/2". 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. |
| 3 | Gauge scale: bar. 1 is MPa, 2 is psi, 3 is bar. |
| T | NPT 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 · PT1/2" · 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 the clamping pressure on a machine-tool pneumatic press or workholding fixture, with the bar-scale square gauge giving the operator a direct local reading at the setpoint.
Regulate the supply pressure feeding cylinders and actuators on a packaging or bottling conveyor, so carton sealing and case-eject strokes run at a consistent, repeatable pressure.
Drop the pressure from a 1/2 in plant air main to the level a downstream machine or cell actually needs, protecting tools and components from full header pressure.
Choose GR size by port and required flow: this 400 size carries 1/2 in NPT ports, one step up from 3/8 in and one below 3/4 in, so step up or down a size if your line flow or piping differs. Decide the gauge: this unit ships with the embedded square gauge in bar scale, while MPa (1) and psi (2) scales and an external round gauge are the other catalogue choices. Thread is a real decision: PT is the standard, and G (BSPP) or NPT are ordered as options - this code is the NPT version. Bracket is optional (this one has none, J code) and GR is also panel-mountable; a low-pressure L type is available where the setting must stay at or below 0.4 MPa. Flow is published as curves, not a single rating, so 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 regulator flow as curves, not as a single rated figure, so we do not quote a Cv or flow number. Send us your application details and we will confirm the datasheet and flow-curve figures for the 400 size at 1/2 in ports on request, so you can size it correctly before ordering.
The GR40015JF3T is decoded with the embedded square gauge fitted, reading in bar (scale 3). MPa (1) and psi (2) scales are the other catalogue options, and an external round gauge is available as an alternative to the embedded square gauge - all specified at order time.
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.