The AirTAC GR30015LF2 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 GR30015LF2 is an AirTAC GR-series air pressure regulator: it does one job, holding downstream pressure steady at the value you set, and it does nothing else - no filtration, no bowl, no lubrication. This is the low-pressure type (L), set up for circuits that must never run above 0.4 MPa, in size 300 with a PT1/2 (1/2 in) port. It ships as standard with an embedded square gauge scaled in psi, and the trailing code confirms no reverse/check valve is fitted.
This is a genuine AirTAC part. The GR family runs from size 200 to 600 with port options from 1/8 in to 1 in, in PT (standard), G (BSPP) or NPT thread, with gauge scale and bracket choices to match your panel. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application before ordering.
| Model | GR30015LF2 AirTAC Air Pressure Regulator PT1/2 Low-Pressure |
|---|---|
| Series | GR300 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 — square, 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.
| GR300 | G-series pressure regulator, 300 body — sets the port range. |
|---|---|
| 15 | Port size PT1/2". This body offers 08 = PT1/4", 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). |
| 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. |
| (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 | GR300 · PT1/2" · 0.05 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size down | GR200 |
| One size up | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Spray booths and finishing lines that run atomising air at low pressure use the L-type regulator to hold a gentle, fixed supply pressure, with the psi gauge giving operators a direct readout at the booth.
On carton sealers and wrap stations fed from a 1/2 in main, this regulator holds the downstream pressure that actuates clamp and hold-down cylinders, keeping cycle behaviour consistent through the shift.
Bench setups and pilot rigs that must not see full line pressure use the low-pressure GR to cap the supply at a safe setting, with the included bracket mounting the unit neatly at the panel.
Start with the port step: this unit is size 300 with a PT1/2 port, so match it to 1/2 in pipework and to the flow your line actually draws - because GR flow is published as curves, not a single rating, send us your demand figure and we will confirm sizing against the datasheet before you order. The L code makes this the low-pressure type, capped at 0.4 MPa, so choose it only where the circuit genuinely runs low; for full 0.05-0.9 MPa adjustment, pick a standard GR instead.
Other decodable choices: the square gauge here reads in psi (scale 2); MPa and bar scales, and an external round gauge, are available as options. Thread is PT as standard, with G (BSPP) and NPT as orderable options. A mounting bracket is included, and GR is also panel-mountable. If you need a check valve in the line, that is a separate K-coded unit - this one has none.
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 GR flow as curves, not as a single rated number, so we do not quote a figure here. Tell us your line pressure and the air demand of your equipment, and we will confirm the flow from the datasheet curves for this exact model before you order.
L marks the low-pressure type, adjustable up to 0.4 MPa, and F2 means the embedded square gauge is scaled in psi. The port is PT1/2 - PT thread is the standard; G (BSPP) and NPT versions are catalogue options you can order for this size.
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.