The AirTAC GR30010LF1TK 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 GR30010LF1TK is a genuine AirTAC GR300 air pressure regulator: it does one job, holding a steady downstream air pressure, and nothing else. This unit carries no filter and no bowl, so it is fitted where the air is already filtered and only pressure control is needed. It is the low-pressure type, adjustable up to 0.4 MPa, making it the right choice for circuits that run well below the standard regulator's range. The trailing T in the code specifies NPT 3/8 in ports, and the K specifies a built-in reverse (check) valve that holds the set pressure if the upstream supply is lost. A square pressure gauge is included as standard, reading in MPa.
This is a genuine AirTAC part from the GR series, which spans sizes 200, 300, 400 and 600 with a choice of PT (standard), G and NPT threads, standard or low-pressure regulation, gauge or no gauge, and optional reverse valve. 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. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet figures for your application.
| Model | GR30010LF1TK 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 — square, 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). |
| F | Gauge shape: Square. 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 |
On a lab test bench or pilot rig where instruments and pneumatic controls run at low pressure, the low-pressure GR30010LF1TK holds a gentle, stable setpoint below 0.4 MPa, with the MPa gauge giving the operator a direct readout at the bench.
On a cartoning or wrapping line where delicate actuators and low-pressure air jets sit downstream of the main plant filter, this regulator steps the pressure down to the low working range the machine needs, and the built-in check valve holds the setting if the supply dips.
At a workholding fixture on a machining cell, the regulator sets the clamping pressure precisely within the low-pressure range, the gauge lets the setter verify the setpoint in MPa, and the reverse valve keeps the clamp pressure stable against upstream fluctuation.
Start with the port step: this is the 300 size with 3/8 in NPT ports; step up or down (200/400/600) to match the line size and the flow your circuit needs. Because this is the L (low-pressure) type, its adjustment range tops out at 0.4 MPa - if your setpoint can go higher, choose a standard GR instead. The included square gauge reads in MPa; psi and bar scales are catalogue options if you prefer. The K code means a reverse (check) valve is fitted - useful where downstream pressure must be held against supply loss; omit it if you do not need that. Thread is NPT here; PT (standard) and G are the other orderable options. A mounting bracket is included, and GR is also panel-mountable. Flow is published as curves, not a single rating, so send us your flow and pressure requirements and we will confirm sizing against the datasheet before you order.
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 flow as curves rather than a single rated figure, so we do not quote a flow number. Tell us your required flow and working pressures and we will confirm the sizing from the datasheet on request before you order.
The L in GR30010LF1TK marks the low-pressure type: its adjustment range goes up to 0.4 MPa, suited to circuits that run below the standard regulator's range. The K means a reverse (check) valve is fitted, which holds the downstream pressure if the upstream supply is interrupted. The T specifies NPT 3/8 in ports; PT (standard) and G threads are catalogue 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.