The AirTAC GR40015C1TK AirTAC Air Pressure Regulator 1/2 in NPT 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 GR40015C1TK is a size 400 air pressure regulator for compressed air, built to hold a steady downstream pressure from an upstream supply that can swing. It regulates from 0.05 to 0.9 MPa (7-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and this configuration is fitted with an external round pressure gauge scaled in MPa so the setpoint can be read and adjusted directly at the unit. The trailing K in the code means a reverse (check) valve is fitted, and the unit includes a mounting bracket; the GR series is also panel-mountable. Ports are 1/2 in NPT thread.
This is a genuine AirTAC part from the GR regulator family, which spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in to 1 in, gauge choices (square embedded or external round, scaled in MPa, psi or bar), a low-pressure type option, and PT, G or NPT thread as order options. GR units also operate across a wide -20 to 70 C temperature range. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GR40015C1TK AirTAC Air Pressure Regulator 1/2 in NPT |
|---|---|
| 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 | Fixing bracket included |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -20 to +70 °C |
| Pressure gauge | Fitted — round, MPa 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. |
| 1 | Gauge scale: MPa. 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 |
On a bench or C-frame pneumatic press, this 1/2 in regulator sits in the supply line to the press cylinder and holds the clamping or forming pressure steady at the setpoint, with the round MPa gauge letting the operator verify the setting at a glance.
On a packaging line's air header feeding sealers, diverters and pick-and-place actuators, this size 400 regulator drops plant supply to the machine's working pressure, while the fitted check valve blocks backflow from the machine side toward the supply.
For conveyor gating, stopping and diverting cylinders on a distribution line, this regulator sets a consistent actuation pressure for the whole run, and the included bracket or panel mounting lets it be fixed at the line's air drop point.
Start with the port and size step: this unit is size 400 with 1/2 in NPT ports, one step up from size 300 (3/8 in) and one below size 600 (3/4 in). Because flow is published only as curves and not as a single rated number, match the size to your air demand by asking us to confirm the flow curve against your application before ordering. Set the working pressure inside the 0.05-0.9 MPa (7-130 psi) regulation range, with a maximum inlet of 1.0 MPa (145 psi).
Then fix the remaining decodable choices. Gauge: this code carries an external round gauge with a MPa scale; square embedded gauges and psi or bar scales are available in the family. Thread: PT is the AirTAC standard, while G (BSPP) and NPT are catalogue options ordered by code - this unit is the NPT version. The K code adds a reverse (check) valve, useful where backflow must be blocked. A mounting bracket is included, and the GR body can also be panel-mounted. If your circuit never exceeds 0.4 MPa, ask about the GR low-pressure (L) type.
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 flow as curves rather than a single rated figure, so we do not quote a Cv, l/min or SCFM number for this unit. What we can confirm from the code: size 400 with 1/2 in NPT ports, regulation from 0.05 to 0.9 MPa (7-130 psi) and a maximum inlet of 1.0 MPa (145 psi). Send us your application's air demand and working pressure and we will confirm the datasheet flow curve and correct size before you order.
For this size 400, 1/2 in NPT regulator: C is the external round pressure gauge, 1 sets its scale to MPa, T specifies NPT thread (PT is the AirTAC standard, and G/BSPP is also an order option), and K means a reverse (check) valve is fitted. The family also offers an embedded square gauge, psi or bar scales, a low-pressure type limited to 0.4 MPa, and a version without the check valve - all selected by the code suffix.
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.