The AirTAC GR40015LC2GK AirTAC Air Pressure Regulator G1/2 Low-Pressure is a genuine G-series air pressure regulator. It holds a stable downstream pressure over the range 0.05 - 0.4 MPa (7 - 58 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 GR40015LC2GK is an AirTAC GR-series air pressure regulator: it does one job, holding a stable downstream air pressure from a compressed-air supply, and it carries no filter element and no bowl. This particular configuration is the 400 size with G1/2 (BSPP) female ports, built as the low-pressure type, so its set-point range tops out at 0.4 MPa rather than the standard ceiling. It leaves the factory with a round pressure gauge reading in psi, a reverse (check) valve fitted, and a mounting bracket included; the GR body is also panel-mountable. Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -20 to 70 C, wider than the rest of the G family.
This is a genuine AirTAC part. The GR line spans four sizes (200, 300, 400, 600) with port sizes from 1/8 in up to 1 in, in standard or low-pressure types, with or without a gauge, and with a reverse valve as an option. Because AirTAC publishes flow for these regulators as curves rather than a single rated figure, we confirm the datasheet and flow figures for your operating point on request before you order.
| Model | GR40015LC2GK AirTAC Air Pressure Regulator G1/2 Low-Pressure |
|---|---|
| Series | GR400 pressure regulator |
| Port size | PT1/2" (G (BSPP) thread) |
| Regulating range | 0.05 - 0.4 MPa (7 - 58 psi) |
| Pressure type | Low-pressure 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". |
| L | Low-pressure type — 0.05 - 0.4 MPa (7 - 58 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. |
| G | G (BSPP) 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 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size down | GR300 |
| One size up | GR600 |
| Line order | Filter first, then regulator, then lubricator |
Pneumatic clamps and fixtures that must not crush delicate workpieces are set to a low holding pressure. This low-pressure GR regulator, with its psi gauge for direct set-point reading and check valve to hold the clamp pressure if supply dips, fits that circuit at a 1/2 in port size.
Spray and atomization headers on a finishing line run at modest, tightly held pressures. The low-pressure adjustment ceiling, round psi gauge and G1/2 ports make this unit a straightforward supply regulator for that header, with the check valve helping hold the set pressure if the upstream supply is interrupted.
Cylinders and air-operated guides along a packaging conveyor need a steady, moderate pressure to sequence smoothly. Mounted on its included bracket beside the line, this 400-size regulator with psi gauge and check valve gives that actuator run a stable, protected supply.
Start with the port step: the 400 size carries 1/2 in ports, and moving up or down a size (200/300/400/600) changes both the port and the flow capacity, so size the regulator against the air demand of the circuit rather than the pipe alone. Choose the type by set-point: this unit is the low-pressure (L) type, adjustable up to 0.4 MPa; if your process needs to set above that, the standard GR type covers up to 0.9 MPa. Decide on the gauge and its scale (MPa, psi or bar) and whether you want the reverse (check) valve fitted, as it is here. Thread is a decodable choice too: PT is the standard, with G (BSPP, as on this unit) and NPT available as order options. A mounting bracket can be included or omitted. One honest note on sizing: AirTAC publishes regulator flow as curves, not a single rated number, so ask us to confirm the flow figures 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 regulator flow as curves rather than a single rated figure, so there is no one rated-flow number we can quote for this unit. Send us your inlet pressure, set pressure and air demand and we will confirm the flow figures from the datasheet for your operating point before you order.
The L in GR40015LC2GK marks the low-pressure type: its set-point range tops out at 0.4 MPa instead of the standard GR ceiling of 0.9 MPa, which suits circuits that must never be set high. The K marks a reverse (check) valve fitted to the unit, which helps hold the downstream pressure if the upstream supply drops. The C2 marks the fitted round gauge reading in psi.
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.