The AirTAC GR30015LC1TK AirTAC Regulator NPT1/2 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 GR30015LC1TK is an AirTAC GR-series air pressure regulator: it does one job, holding a stable downstream pressure from a compressed-air supply. This is the low-pressure (L) type, so its adjustment range tops out at 0.4 MPa, and it is built in the 300 size with a 1/2 inch NPT port. The code also specifies a round pressure gauge reading in MPa, a built-in reverse (check) valve so downstream pressure cannot back-feed through the unit, and the standard included mounting bracket; the GR body is also panel-mountable. There is no filter or bowl in this unit - it is regulation only.
This is a genuine AirTAC part. The GR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 inch, standard or low-pressure regulation, gauge and thread options, and a check-valve variant. Flow is published in the catalogue as curves rather than a single rated figure, so if you need a specific flow or datasheet number for this model, ask us and we will confirm it against the datasheet on request.
| Model | GR30015LC1TK AirTAC Regulator NPT1/2 Low-Pressure |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT1/2" (NPT 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, 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.
| 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). |
| 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 | 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 |
On a carton-sealing or wrapping line, actuator circuits that need a gentle, stable setting below the standard range use this low-pressure GR regulator to hold the setpoint while the check valve keeps downstream pressure from drifting back through the unit between cycles.
A fixture that clamps workpieces with air cylinders at a deliberately low setting benefits from this 1/2 inch low-pressure regulator: the operator sets the circuit once with the MPa gauge in view, and the regulator holds that pressure through the production shift.
On a plant air drop feeding looms or converting equipment, this regulator gives a section of the line its own controlled pressure, isolated by the built-in check valve so adjustments or shutdowns upstream do not disturb the setting downstream.
Start with the port step: the GR series runs 200/300/400/600 against 1/8 to 1 inch ports, and the 300 size with a 1/2 inch port suits circuits where line size and flow demand sit in the middle of the range - match the port to your piping and let us confirm the flow curve for your application. Next, choose the regulation type: this unit is the low-pressure (L) type, adjusting up to 0.4 MPa, so it fits circuits that must not be set high; if your setpoint can go to 0.9 MPa, the standard GR type is the alternative. Gauge options are the embedded square gauge or an external round gauge, in MPa, psi or bar scales - this code carries the round gauge in MPa. Thread is a decodable choice: PT is the catalogue standard, while G (BSPP) and NPT (as on this model) are order options - specify the one your piping uses, not a delivery preference. Brackets are optional on GR and included here. One honest note: flow is published as curves, not 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 GR-series flow as curves in the catalogue, not as a single rated figure, so we do not quote a number here. Tell us your application and line conditions and we will confirm the relevant flow figure from the datasheet on request before you order.
The L in the code marks the low-pressure version: its adjustment range tops out at 0.4 MPa, versus up to 0.9 MPa for the standard GR type. Choose it for circuits that must be set low; inlet pressure is still up to 1.0 MPa (145 psi), and the unit carries a round MPa gauge, a reverse (check) valve, and a 1/2 inch NPT port (PT is the catalogue standard thread, with G and NPT as order options).
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.