The AirTAC GR40015JF3TK AirTAC Regulator NPT1/2, 1/2 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 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 GR40015JF3TK is an AirTAC GR-series air pressure regulator: it does one job, holding your downstream line pressure steady at the setting you choose. This size 400 unit has a 1/2 in NPT port, adjusts from 0.05 to 0.9 MPa (7-130 psi), and carries an embedded square gauge scaled in bar so the setpoint is visible at a glance. A reverse/check valve is fitted, so downstream pressure is held if the upstream supply drops. Maximum inlet pressure is 1.0 MPa (145 psi), and the regulator 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 family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, in PT (standard), G or NPT thread, with optional low-pressure type, gauge scale choices, reverse valve and bracket variants. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing figures from the datasheet for your application.
| Model | GR40015JF3TK AirTAC Regulator NPT1/2, 1/2 in |
|---|---|
| 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 | 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. |
|---|---|
| 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. |
| 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 · 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 |
Drops the 1/2 in compressed air main feeding a production cell to a stable working pressure, with the bar-scale square gauge letting operators verify the setpoint during shift checks.
Regulates supply pressure to a machining centre's pneumatic clamps and tool-change cylinders, where the fitted check valve holds the circuit if the shop air supply dips.
Sets consistent pressure for conveyor stopper cylinders and case-erector actuators on a packaging line, keeping repeatable actuator sequencing across the whole shift.
Start with the port step: this unit is size 400 with a 1/2 in NPT thread. If your line runs larger or smaller, the GR family steps through 200/300/400/600 with ports from 1/8 in to 1 in - match the size to the flow your circuit needs and we will confirm the curve figures before you order. The square gauge here is scaled in bar; MPa and psi scales are also available if your team reads in those units. The fitted reverse/check valve (code K) suits circuits where a supply failure must not dump downstream pressure. Thread is NPT on this model; PT is the standard and G is also a catalogue option. No mounting bracket is fitted (code J), and GR regulators are panel-mountable. Because GR flow data is published as curves rather than a single rating, send us your flow and pressure requirements and we will confirm the right size from the datasheet before ordering.
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 GR regulator flow as curves rather than a single rated figure, so we do not quote a l/min or SCFM number. Send us your required flow and upstream/downstream pressures and we will confirm the sizing from the datasheet on request.
The F3 code means an embedded square gauge scaled in bar is fitted; MPa and psi scales are catalogue alternatives. The K code means a reverse/check valve is fitted, holding downstream pressure if the upstream supply is lost. This unit has no bracket (J) and a 1/2 in NPT thread; PT is the standard thread and G is also an order option.
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.