The AirTAC GR40015LC2 AirTAC Air Pressure Regulator PT1/2 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 GR40015LC2 is an AirTAC GR400 air pressure regulator in the low-pressure type configuration, built for compressed-air lines where downstream pressure must be held well below full line pressure. It regulates only - there is no filter element, no drain bowl and no lubricator in this unit. This configuration decodes as a 1/2 inch PT threaded port, a low-pressure regulation range up to 0.4 MPa, an external round pressure gauge with a psi scale, and a mounting bracket included as standard. Maximum working (inlet) pressure is 1.0 MPa (145 psi), and the operating temperature range is -20 to 70 C - wider than the rest of the G-series, which makes the GR family the choice for colder environments. The GR400 body is also panel-mountable.
This is a genuine AirTAC part. The GR family spans four sizes (200, 300, 400, 600) with port sizes from 1/8 to 1 inch, and options including standard or low-pressure regulation, embedded square or external round gauges with MPa, psi or bar scales, a reverse/check valve, and G (BSPP) or NPT threads in place of the standard PT. Flow figures for the GR400 are published as curves rather than a single rated number - ask us and we will confirm the datasheet figures against your application.
| Model | GR40015LC2 AirTAC Air Pressure Regulator PT1/2 Low-Pressure |
|---|---|
| Series | GR400 pressure regulator |
| Port size | PT1/2" (PT 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 | 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". |
| 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. |
| (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 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size down | GR300 |
| One size up | GR600 |
| Line order | Filter first, then regulator, then lubricator |
On a carton-forming or wrapping machine, cylinders and air tables often run at reduced pressure to avoid crushing product. This GR400 low-pressure regulator, fitted with a 1/2 inch PT port and a round psi gauge, lets an operator set and read the working pressure directly in psi at the machine drop.
A furniture plant running pneumatic hold-down clamps on a panel press needs a stable, moderate holding pressure rather than full line pressure. Mounted at the press drop on its included bracket, this regulator holds the clamp circuit at the set point while the shop air main runs higher.
Bottle-rinse and blow-off stations on a beverage filling line are tuned by adjusting air pressure to the nozzles. This low-pressure GR400 regulator at the header inlet gives the line technician a psi-scaled gauge and repeatable adjustment up to 0.4 MPa for consistent blow-off.
Start with the port step: the GR400 carries 1/2 inch ports, one step up from the GR300 (3/8 inch) and one below the GR600 (3/4 inch), so pick the size that matches your line and the flow your circuit needs. Then choose the regulator type: this unit is the low-pressure (L) type, with adjustment up to 0.4 MPa - if your process needs the full 0.05-0.9 MPa range, order the standard type instead. Gauge choices are the embedded square gauge (standard) or an external round gauge, with MPa, psi or bar scales. Thread is PT as standard; G (BSPP) and NPT are catalogue options to order. A J suffix removes the bracket, and a K suffix adds a reverse/check valve. The GR400 is also panel-mountable. One honest note on sizing: AirTAC publishes flow as curves, not a single rated figure, so ask us to confirm the datasheet flow data against your application before ordering.
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 GR400 flow as performance curves rather than a single rated number, so we do not quote a flow figure here. Tell us your line size and application and we will confirm the datasheet flow curves for the GR400 against your requirement before you order.
The L in GR40015LC2 marks the low-pressure regulator type, with an adjustment range up to 0.4 MPa - choose this when your process runs well below the standard range. The C2 suffix specifies an external round gauge with a psi scale; the embedded square gauge with MPa, psi or bar scales is also available in the family.
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.