The AirTAC GR600-25T AirTAC Air Pressure Regulator, NPT 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, 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 GR600-25T is a genuine AirTAC GR-series air pressure regulator, built purely for pressure regulation of compressed air - it contains no filter, no bowl and no lubricator. This is the size 600 unit, the largest in the GR range, with a 1 in NPT port, so it sits in the main air line of a plant where high-volume supply has to be held at a stable, workable pressure. It is the standard (not low-pressure) type, adjustable from 0.05 to 0.9 MPa (7-130 psi), and it carries a square pressure gauge scaled in bar so operators can read and set downstream pressure at a glance. Maximum working (inlet) pressure is 1.0 MPa (145 psi), and the operating temperature range is -20 to 70 C - wider than the rest of the G family, which matters in cold shops and unheated plant rooms.
This is a genuine AirTAC part. The GR series spans sizes 200, 300, 400 and 600 with port sizes from 1/8 in up to 1 in, and options include G (BSPP) or NPT threads in place of the PT standard, gauge scale in MPa, psi or bar, a reverse/check valve, and panel mounting - the GR is also panel-mountable, though this J-coded unit ships without a mounting bracket. Flow is published by AirTAC as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures against your application on request.
| Model | GR600-25T AirTAC Air Pressure Regulator, NPT 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 | Supplied without bracket |
| 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 | Not fitted |
| 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. |
| J | Supplied without bracket. |
| (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. |
| (blank) | No reverse-flow valve (the default). |
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 distribution header down to a stable working pressure for an entire production hall, with the bar-scaled square gauge giving operators a direct read of the set pressure at the manifold.
Feeding banks of pneumatic cylinders and air-driven conveyors on a packaging or material-handling line, where the 1 in NPT port matches the main feed and the regulator holds actuator pressure steady through the shift.
Supplying big air-operated valves and gate actuators in a process plant, where a set pressure held within the 0.05-0.9 MPa range keeps actuator stroking consistent and protects the actuator from header surges.
Size and port are the first decision: the 600 size with its 1 in NPT port is the right step when the main line is 1 in and the volume of air is large - smaller GR sizes (200/300/400) step down in port and flow capacity, so match the regulator to the pipe and demand rather than oversizing for its own sake. Set the adjustment range against your process: this standard type covers 0.05-0.9 MPa (7-130 psi); if your circuit never needs more than 0.4 MPa, the GR low-pressure (L) type exists as a separate code. The fitted square gauge here reads in bar; MPa and psi scales are available if that suits your operators better, and an external round gauge is an option. Thread is NPT on this unit - PT is the catalogue standard, with G (BSPP) and NPT as order options, so pick the thread your pipework actually uses. This J-coded unit has no mounting bracket; add one if the regulator will not be panel-mounted or supported by its own piping.
One honest note on sizing: AirTAC publishes GR flow as curves, not as a single rated number, so there is no honest one-line flow figure to quote here. Tell us your line pressure, set pressure and expected air demand, and we will confirm the sizing against the datasheet on request before you order.
Quick checklist
Without a reflux valve, air cannot flow back through the regulator — order the K option if reverse flow is required. A regulator does not remove water or particulate; that is the filter's job.
AirTAC publishes GR-series flow as performance curves rather than a single rated figure, so there is no honest one-number answer to give. Send us your inlet pressure, target set pressure and expected air consumption, and we will confirm the sizing against the datasheet on request before you order.
The F3 code in GR60025JF3T specifies the embedded square gauge with a bar scale. The catalogue also offers MPa and psi scales, and an external round gauge as an alternative to the embedded square gauge - so if your team reads in psi or MPa, that is a real ordering choice, not a custom modification.
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.