The AirTAC GR60025LF3TK AirTAC Regulator NPT1 Low-Pressure 1 in 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" 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 GR60025LF3TK is an AirTAC GR600 air pressure regulator built for 1 in (NPT1) ports. It is the low-pressure (L) type, so it regulates downstream pressure up to 0.4 MPa, and the K code means a reverse (check) valve is fitted to hold the downstream setting if the upstream supply is interrupted. An embedded square gauge with a bar scale is included as standard, a mounting bracket comes with the unit, and the GR series is also panel-mountable. 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.
This is a genuine AirTAC part from the GR series, which spans the 200, 300, 400 and 600 sizes with port options from 1/8 in to 1 in and PT, G (BSPP) or NPT threads. Standard and low-pressure regulator types, gauge scales in MPa, psi or bar, an external round gauge option and a reverse-valve option let you match the unit to the circuit. A GR is regulation only: it has no filter, no bowl and no lubricator. We confirm flow and other datasheet figures on request, because AirTAC publishes flow as curves rather than a single rated number.
| Model | GR60025LF3TK AirTAC Regulator NPT1 Low-Pressure 1 in |
|---|---|
| Series | GR600 pressure regulator |
| Port size | PT1" (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, bar 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.
| GR600 | G-series pressure regulator, 600 body — sets the port range. |
|---|---|
| 25 | Port size PT1". This body offers 20 = PT3/4", 25 = PT1". |
| 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. |
| 3 | Gauge scale: bar. 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 | GR600 · PT1" · 0.05 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size down | GR400 |
| Line order | Filter first, then regulator, then lubricator |
On filling and capping machines that run air cylinders and clamps at reduced pressure, this 1 in low-pressure regulator holds the downstream setting up to 0.4 MPa, with the fitted check valve keeping the circuit stable if the upstream supply dips.
On a pneumatic test bench where operators set a reduced pressure by hand, the square bar-scale gauge gives a direct readout and the 1 in NPT ports tie into the main drop without reducers.
For blow-off and drying stations fed from a plant air main, this regulator lets the line set a reduced, repeatable blowing pressure, and the included bracket makes frame or panel mounting straightforward.
Choose the GR size by port and required flow: the 600 size here gives a 1 in NPT port for the largest circuits in the range. This LF3T configuration is the low-pressure type (regulation up to 0.4 MPa) with a square bar-scale gauge, a reverse/check valve and NPT threads; PT is the standard thread and G (BSPP) can be ordered instead, so pick the thread that matches your pipework. If your circuit needs settings up to 0.9 MPa, the standard GR600 type is the alternative; if you prefer psi or MPa readout, order scale 2 or scale 1. A mounting bracket is included and the body is also panel-mountable. Flow for this series 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 flow as curves against inlet pressure and setting, not as a single rated figure, so we do not quote a number here. Tell us your line pressure, set pressure and expected air demand, and we will confirm from the datasheet whether this 600-size, 1 in regulator suits the application.
The L code means the regulator adjusts downstream pressure up to 0.4 MPa, which suits circuits that run at reduced pressure. If your application needs settings up to 0.9 MPa, the standard GR600 type is the matching alternative in the same size and port - ask us and we will confirm the details on request.
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.