The AirTAC GR600-25T AirTAC Air Pressure Regulator NPT1 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 AirTAC GR600-25T is a genuine AirTAC air pressure regulator in the largest size of the GR series, built for one job only: holding a steady, adjustable downstream air pressure from a compressed-air supply. This configuration is decoded from the code itself: a 600-size body with a 1 in NPT thread, a round pressure gauge fitted and scaled in psi, a reverse/check valve fitted so backflow will not disturb the set pressure, and no mounting bracket supplied. The standard-type regulator covers an adjustment range of 0.05-0.9 MPa (7-130 psi), with a maximum working (inlet) pressure of 1.0 MPa (145 psi), and it operates in temperatures from -20 to 70 C - the widest temperature window in the G-series range, which makes GR the natural choice for colder or hotter installations.
GR600 is the top of the GR size ladder (200/300/400/600), so it is the step you take when the line port and flow demand are at their largest. The series also offers G (BSPP) or PT threads as order options, an embedded square gauge as the standard alternative to this round gauge, MPa or bar gauge scales, a low-pressure type (up to 0.4 MPa), and panel mounting. Because AirTAC publishes regulator flow only as curves rather than a single rated figure, we confirm the sizing and datasheet figures for your application on request.
| Model | GR600-25T AirTAC Air Pressure Regulator NPT1 |
|---|---|
| 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 — round, psi 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". |
| (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). |
| C | Gauge shape: Round. C is round, F is square. |
| 2 | Gauge scale: psi. 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 a 1 in main distribution header down to a controlled working pressure for an entire production cell, with the check valve holding the setpoint steady against upstream surges.
Supplying regulated air to large-bore cylinders and clamps on a packaging or palletising conveyor, where the 1 in NPT port matches the high-volume actuation circuit.
Feeding a multi-branch pneumatic manifold on an automated machine, with the psi-scaled round gauge giving operators a clear local readout of the regulated setpoint.
Sizing a GR regulator is a two-step decode. First pick the size by port and flow: 200 through 600 map to ports from 1/8 in up to this 1 in NPT connection, and the larger the size, the larger the port and the flow capacity - match the step to your line size and air demand. Second, set the options: this unit ships with a round gauge scaled in psi (square embedded gauges and MPa or bar scales are the alternatives), and the fitted reverse/check valve (code K) is worth keeping whenever backflow could upset the setpoint. Thread is your call too: PT is the standard, while G (BSPP) and NPT are catalogue options ordered by suffix - this unit is the T (NPT) build. GR is also panel-mountable, and the J code here means no bracket is included.
One honest note before you order: AirTAC publishes regulator flow as curves, not as a single rated number, so we do not quote a flow figure here. Send us your line pressure, set pressure and air demand, and we will confirm the sizing against the datasheet before you commit.
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 performance curves rather than a single rated figure, so we do not quote a flow number. Tell us your inlet pressure, set pressure and air demand, and we will confirm the sizing from the datasheet on request.
Both are decoded from the model code. The C2 in GR60025JC2TK specifies an external round gauge scaled in psi (the embedded square gauge is the standard alternative, with MPa or bar scales available), and the K specifies a fitted reverse/check valve that prevents backflow from disturbing the set pressure. The T specifies the NPT thread; PT and G (BSPP) are the other catalogue thread options.
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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.