The AirTAC GR40015C2K AirTAC Air Regulator 1/2 in PT, Round 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 GR40015C2K is an AirTAC GR400 air pressure regulator for compressed air, built around a 1/2 in PT1/2 port. It is the standard-type GR400 with a 0.05-0.9 MPa (7-130 psi) regulation range and a maximum inlet pressure of 1.0 MPa (145 psi). This configuration carries the K code, so a reverse/check valve is fitted to hold the downstream setting, and the C2 code means an external round gauge on the psi scale is specified. A mounting bracket is included, and the GR body is also panel-mountable. Operating temperature is -20 to 70 C, wider than the rest of the G family, which suits colder installations.
This is a genuine AirTAC part. The GR400 is the 400 size in the GR series, which spans 200, 300, 400 and 600 sizes with a choice of ports, threads (PT standard, G and NPT as order options), gauge styles and scales, low-pressure variants and check-valve versions. We do not quote a single rated flow figure because AirTAC publishes GR flow as curves; ask us and we will confirm the datasheet figures for your application on request.
| Model | GR40015C2K AirTAC Air Regulator 1/2 in PT, Round 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 — round, 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). |
| C | Gauge shape: Round. 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 |
Setting and holding a stable cylinder clamping force on a fixture or pneumatic press, where the fitted check valve keeps the downstream setting if supply pressure drops.
Regulating the air feed to pick-and-place cylinders and gating actuators on a packaging line, with the 1/2 in PT1/2 port matching the machine's main drop leg.
Trimming a dedicated reduced-pressure feed for tool clamping or chuck actuation on a CNC machine, independent of the shop-air header pressure.
Choose the GR400 size by port and required flow: the 400 size steps up to the PT1/2 port for lines that have outgrown 3/8 in, while the 200, 300 and 600 sizes cover smaller and larger steps. This unit is the standard type with a 0.05-0.9 MPa (7-130 psi) setting range; if your circuit never exceeds 0.4 MPa, the GR low-pressure (L) variant is the alternative. The C2 code fixes the external round gauge on the psi scale - square gauges and MPa or bar scales are the other catalogue choices. The fitted K check valve helps hold the downstream setting if upstream pressure is lost. Thread is PT as standard; G (BSPP) and NPT are order options. A bracket is included and the body is panel-mountable. Flow is published as curves rather than a single rating, so ask us to confirm sizing against your application 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 GR400 flow as curves rather than a single rated figure, so we do not quote a number on the page. Tell us your line pressure, set pressure and the equipment downstream, and we will confirm the datasheet flow figures for this 1/2 in regulator on request.
C2 specifies an external round gauge on the psi scale (square gauges and MPa or bar scales are the other options), and K means a reverse/check valve is fitted to help hold the downstream setting. The unit is otherwise the standard GR400 regulator with a PT1/2 port, 0.05-0.9 MPa range and included bracket.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.