The AirTAC GR30015JF3TK 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 GR30015JF3TK is an AirTAC GR300 air pressure regulator for compressed air, built around one job only: holding a steady downstream pressure. This configuration is the 300 size with a 1/2 in NPT port, the standard-type regulator with an adjustment range of 0.05-0.9 MPa (7-130 psi) against a maximum inlet pressure of 1.0 MPa (145 psi). It carries an embedded square gauge scaled in bar, and the K code means a reverse (check) valve is fitted, so downstream pressure is held if the upstream supply is lost. The J code means no mounting bracket is supplied; the GR body is also panel-mountable. As a regulator it has no filter, no bowl and no lubricator, and it operates from -20 to 70 C, a wider temperature window than the rest of the G-series families.
This is a genuine AirTAC part. The GR family spans the 200, 300, 400 and 600 sizes with port options from 1/8 in to 1 in, and can be ordered with G (BSPP) or NPT threads in place of the PT standard, with or without a bracket, gauge or check valve, and in a low-pressure (L) version rated up to 0.4 MPa. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GR30015JF3TK AirTAC Air Pressure Regulator NPT1/2 |
|---|---|
| Series | GR300 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.
| GR300 | G-series pressure regulator, 300 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 08 = PT1/4", 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 | GR300 · PT1/2" · 0.05 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR200 |
| One size up | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Set and hold the clamping pressure feeding a workholding press cylinder, with the check valve holding the set pressure if the shop-air supply drops mid-cycle.
Regulate the supply to sealing jaws and carton-closing cylinders on a packaging line, where a stable setpoint keeps stroke force repeatable shift after shift.
Feed a pick-and-place gripper circuit on an assembly cell at a fixed, repeatable pressure, with the bar-scaled gauge giving operators a clear setpoint reference.
Size and port are the first choice: the 200/300/400/600 steps pair with progressively larger ports, so match the size to the air demand of the line rather than to the pipe alone. This unit is the 300 size with a 1/2 in NPT port; PT is the AirTAC standard thread and G (BSPP) or NPT are catalogue options to order. The standard type covers 0.05-0.9 MPa (7-130 psi); if your setpoint stays at or below 0.4 MPa, the low-pressure L type is the dedicated choice. Decide the gauge scale you want (MPa, psi or bar - this unit is bar) and whether the embedded square gauge or the optional external round gauge suits the panel. The K check valve is worth specifying wherever a dropped supply must not dump the downstream circuit, and the bracket option matters if you mount off the pipe rather than the panel.
One honest note on sizing: regulator flow is published as curves, not a single rated number, so there is no one Cv or flow figure we can quote. Send us your line pressure, setpoint and air demand and we will confirm the sizing against the datasheet curves before you order.
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 regulator flow as curves, not as a single rated figure, so we do not quote a Cv, l/min or SCFM number for this unit. Tell us your inlet pressure, setpoint and air demand and we will confirm the sizing against the datasheet curves on request before you order.
The K in the code means a reverse (check) valve is fitted: if the upstream supply is lost, the valve holds the downstream pressure instead of venting the circuit. On thread, this unit is the T variant with a 1/2 in NPT port; PT is the AirTAC standard and G (BSPP) is also a catalogue option you can order - these are specifications, not delivery promises.
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.