The AirTAC GR40015F2K AirTAC Air Pressure Regulator PT1/2, psi gauge 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 GR40015F2K is an AirTAC GR-series air pressure regulator: it does one job, holding your downstream compressed-air pressure steady at the setting you dial in. This 400-size unit carries a PT1/2 (1/2 in) PT thread, the standard pressure-adjustment range of 0.05-0.9 MPa (7-130 psi), and an embedded square gauge scaled in psi so operators can read and set pressure at a glance. The K in the code means 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 is rated for -20 to 70 C - a wider temperature window than the rest of the G family.
This is a genuine AirTAC part. The GR line comes in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 inch, gauge scales in MPa, psi or bar, an optional low-pressure type, and G or NPT thread variants to order. We confirm flow and datasheet figures on request - just ask before you order.
| Model | GR40015F2K AirTAC Air Pressure Regulator PT1/2, psi gauge |
|---|---|
| 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 | 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. |
| (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. |
| 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 |
A 1/2-in regulated supply to a pneumatic press or clamp cylinder, where the psi gauge lets the setter dial in and verify working pressure and the check valve holds the setting if the main supply dips.
A dedicated regulator on the 1/2-in air drop feeding a packaging machine's valve manifold, keeping actuator pressure stable regardless of what the rest of the plant draws from the header.
Panel or bracket mounting at a machine control station, giving operators a local psi-scaled setpoint for downstream valves and cylinders on a 1/2-in circuit.
Size and port are the first decision: the 400 step with its PT1/2 thread suits lines plumbed in 1/2 in, and larger sizes carry more flow - published as curves rather than a single rating, so ask us to confirm sizing against your application before ordering. Then choose your gauge scale (this unit is psi; MPa and bar are available), whether you need the reverse/check valve (fitted here, code K), and your thread: PT is standard, with G (BSPP) and NPT as catalogue options to order. A mounting bracket is included, and GR is also panel-mountable.
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-series flow as characteristic curves rather than a single rated figure, so we do not quote a number. Tell us your application and we will confirm the flow and datasheet figures for this 400-size, PT1/2 regulator on request before you order.
K means a reverse (check) valve is fitted. If upstream pressure is lost, the check valve prevents downstream air from escaping back through the regulator, holding the set pressure in the circuit. It is an option on GR regulators - units without the K code do not have it.
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.