The AirTAC GR30010LC1TK AirTAC Low-Pressure Regulator NPT3/8 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 PT3/8" 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 GR30010LC1TK is an AirTAC GR300-series air pressure regulator in the 300 size with a 3/8 in NPT port. This is a regulation-only unit: it holds a steady downstream pressure from your compressed air supply, with no filter and no bowl. The L in the code marks the low-pressure type, so its adjustment range tops out at 0.4 MPa - suited to circuits that run below standard line pressure. It comes fitted with an external round pressure gauge scaled in MPa and a reverse (check) valve, and the mounting bracket is included; the GR300 is also panel-mountable.
This is a genuine AirTAC part. The GR family spans the 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, standard or low-pressure regulation, gauge choices and scales, a reverse-valve option, and G (BSPP) or NPT threads as order options alongside the PT standard. Flow is published as curves rather than a single rating, so ask us to confirm the figures against your application before ordering.
| Model | GR30010LC1TK AirTAC Low-Pressure Regulator NPT3/8 |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT3/8" (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. |
|---|---|
| 10 | Port size PT3/8". 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 · PT3/8" · 0.05 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size down | GR200 |
| One size up | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Pneumatic clamps and hold-downs on carton-sealing or case-packing machinery often run below standard shop pressure. This low-pressure regulator set downstream of the main FRL holds the clamp circuit at its lower setpoint, with the MPa gauge giving operators a clear reading at the panel.
Air knives and blow-off nozzles that clear dust or drying droplets from products on a conveyor are usually tuned to a gentle, fixed pressure. This 3/8 in regulator lets the line set and hold that lower pressure, and the check valve keeps downstream air from back-feeding the setting.
Pneumatically actuated process valves and dampers in water treatment or food-processing plants frequently specify a reduced actuator supply pressure. Mounted beside the manifold with its included bracket, this regulator holds that supply steady, and the round gauge lets technicians verify the setpoint during maintenance.
Start with the port step: the GR300 covers 3/8 in, and the GR family steps 200/300/400/600 through 1/8 in to 1 in, so pick the size that matches your line's flow demand. Choose the low-pressure type (L) only when your setpoint stays at or below 0.4 MPa; the standard type covers the full 0.05-0.9 MPa range. Decide on the gauge: embedded square or external round, scaled in MPa, psi or bar. Pick the thread - PT is the standard, with G (BSPP) and NPT as order options - and whether you want the reverse (check) valve fitted. A bracket is included as standard, and the GR300 can also be panel-mounted. 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 regulator flow as curves rather than a single rated figure, so we do not quote a number here. Tell us your line pressure, setpoint and the flow your application needs, and we will confirm the sizing from the datasheet curves on request before you order.
The L in the code marks the low-pressure type, whose adjustment range tops out at 0.4 MPa instead of the standard 0.05-0.9 MPa - the right choice when your setpoint sits below standard line pressure. The C1 code means an external round gauge scaled in MPa is fitted; psi or bar scales are available 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.