The AirTAC GR60025NTK AirTAC Air Pressure Regulator NPT1 (1 in) is a genuine G-series air pressure regulator. It holds a stable downstream pressure over the range 0.05 - 0.9 MPa (7 - 130 psi) with PT1" ports, ordered without a 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 GR60025NTK is an AirTAC GR-series air pressure regulator, a regulation-only unit for compressed air: it holds a steady downstream pressure from a variable supply, with no filter element and no bowl. This is the largest size in the family, the GR600, with a 1 in (NPT1) port for high-flow supply lines. It is the standard type with an adjustment range of 0.05-0.9 MPa (7-130 psi) and a maximum inlet pressure of 1.0 MPa (145 psi). The trailing K in the code means a reverse (check) valve is fitted, so downstream air cannot flow back through the unit. No gauge is supplied with this configuration (code N), and a mounting bracket is included; GR units are also panel-mountable.
This is a genuine AirTAC part. The GR family spans four sizes (GR200, GR300, GR400, GR600) with ports from 1/8 in to 1 in, offered in PT as standard with G (BSPP) and NPT as order options, and with gauge, bracket and check-valve choices. Operating temperature is -20 to 70 C, wider than the rest of the G-series. Flow is published as curves rather than a single rated figure, so ask us to confirm the datasheet and sizing for your application.
| Model | GR60025NTK AirTAC Air Pressure Regulator NPT1 (1 in) |
|---|---|
| Series | GR600 pressure regulator |
| Port size | PT1" (NPT thread) |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Standard type |
| Bracket | Fixing bracket included |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -20 to +70 °C |
| Pressure gauge | Not fitted |
| 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". |
| (blank) | Standard type — 0.05 - 0.9 MPa (7 - 130 psi). Blank is standard, L is the low-pressure type. |
| (blank) | Fixing bracket included. |
| N | No pressure gauge (N). |
| (blank) | Gauge shape: Factory standard. C is round, F is square. |
| (blank) | Gauge scale: Factory standard. 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 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Dropping the 1 in compressor supply header down to a controlled working pressure before it branches to production areas, holding the setpoint steady as demand across the shop fluctuates through the shift.
Feeding big quarter-turn actuator circuits on process valves, where the check valve holds the actuator-side pressure and the regulator keeps solenoid-piloted valves on their rated supply band.
Supplying high-volume cylinder circuits on packaging and palletising conveyors, where a stable regulated pressure keeps clamp and pusher cylinders consistent from the first cycle of the shift to the last.
Start with the port step: GR sizes run 200 / 300 / 400 / 600 with ports from 1/8 in to 1 in, and the GR600's 1 in port suits the largest supply lines - match the size to the flow your line needs rather than to the pipe alone. Set the adjustment range against your downstream requirement: the standard GR600 covers 0.05-0.9 MPa (7-130 psi) with a maximum inlet of 1.0 MPa (145 psi). Choose the thread for your piping: PT is the standard, with G (BSPP) and NPT as catalogue options - this unit is the NPT version. Decide whether you want a pressure gauge fitted (this code N unit has none, but gauge versions are available), whether a reverse/check valve is needed (fitted here), and whether you will use the included bracket or panel-mount the body. 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 rather than a single rated figure, so there is no one l/min or SCFM number we can quote honestly. The GR600 is the largest size in the family with a 1 in port, which is the strongest indication of its flow class, but for sizing we will confirm the actual flow curve from the datasheet against your application - just ask before ordering.
The N means no pressure gauge is supplied with this configuration, so you would read the downstream setting on your own gauge or fit one in the line. GR units are also available with a gauge fitted - an embedded square gauge or an optional external round gauge, with MPa, psi or bar scales - so if you want a gauge on the regulator itself, ask us for the equivalent code with the gauge option.
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.