The AirTAC GR40015F2 AirTAC Air Pressure Regulator PT1/2 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 AirTAC GR40015F2 is a compressed-air pressure regulator in the GR400 size, with a PT1/2 (1/2 in) PT thread port. It does one job only: it holds a steady downstream pressure set anywhere in its 0.05-0.9 MPa (7-130 psi) adjustment range, supplied at up to 1.0 MPa (145 psi) inlet. This configuration carries the embedded square gauge on the psi scale, so the set pressure can be read and adjusted directly at the unit. GR is regulation only - there is no filter, no bowl and no drain on this family, so it is fitted where the air is already filtered or where regulation alone is needed. It works in ambient conditions 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 the 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, and is available with G (BSPP) or NPT threads to order, a low-pressure type (up to 0.4 MPa), a reverse/check valve, no-gauge and gauge-scale variants, and a no-bracket option; GR is also panel-mountable. Flow is published as curves rather than a single rated figure, so ask us and we will confirm the flow and datasheet figures for your application on request.
| Model | GR40015F2 AirTAC Air Pressure Regulator PT1/2 |
|---|---|
| Series | GR400 pressure regulator |
| Port size | PT1/2" (PT thread) |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Standard type |
| Bracket | Fixing bracket included |
| 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. |
|---|---|
| 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. |
| (blank) | Fixing bracket included. |
| (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 · 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 |
On a workshop pneumatic press fed from a shared header, the GR40015F2 sits at the drop to hold a fixed working pressure at the press cylinder, with the psi square gauge letting the setter dial in and verify the set point.
On a packaging line where conveyor stoppers, pushers and clamps run on 1/2 in air drops, this regulator keeps the actuator supply steady so cycle behaviour stays consistent as header pressure drifts through the shift.
At an assembly bench taking air from the plant ring main, the GR40015F2 regulates the bench supply to the pressure the tools and fixtures were set up for, with the wider -20 to 70 C range suiting unheated production halls.
Start with the size and port: GR comes in 200, 300, 400 and 600, with ports from 1/8 in up to 1 in - the larger the size, the larger the port and the more air it passes, so match the size to the demand of the circuit rather than to the pipe alone. Then set the gauge to suit the workshop: this unit has the embedded square gauge on the psi scale, and MPa or bar scales are available as alternatives. Choose the thread for the piping standard in use - PT is the standard on this model, with G (BSPP) and NPT as orderable options. If the set pressure never needs to exceed 0.4 MPa, the GR low-pressure type (L) is the right variant, and a reverse/check valve (K) can be specified where backflow protection is wanted. A no-bracket version (J) exists if panel mounting is used instead.
One honest note on sizing: AirTAC publishes GR flow as curves, not as a single rated number, so we do not quote a flow figure here. Tell us your application and we will confirm the sizing against the datasheet curves 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 flow as performance curves, not as a single rated figure, so we do not state a flow number. Send us your application details and we will confirm the flow from the datasheet curves on request before you order.
The GR40015F2 is supplied with the embedded square gauge on the psi scale. MPa and bar scales are available as catalogue options, and a no-gauge version (N) exists if you prefer to read pressure elsewhere in the circuit.
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.