The AirTAC GR600-20T AirTAC Air Pressure Regulator, NPT 3/4 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 PT3/4" 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 GR600-20T is an AirTAC GR-series air pressure regulator in the largest 600 size, supplied here with a 3/4 in NPT port (T thread code). It is a regulation-only unit: it holds a stable downstream pressure from your compressed-air supply and carries no filter, no bowl and no lubricator. This configuration is the standard type with a 0.05-0.9 MPa (7-130 psi) adjustment range, rated for a maximum 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 family. No gauge is fitted (code N) and no mounting bracket is included (code J); the GR series is also panel-mountable.
This is a genuine AirTAC part. The GR family spans the 200, 300, 400 and 600 sizes with port options from 1/8 in to 1 in, PT as the standard thread and G or NPT as order options, plus choices of gauge, bracket, low-pressure type and a reverse/check valve. Flow for this series is published as curves rather than a single rated figure, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GR600-20T AirTAC Air Pressure Regulator, NPT 3/4 in |
|---|---|
| Series | GR600 pressure regulator |
| Port size | PT3/4" (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 | Not fitted |
| 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. |
|---|---|
| 20 | Port size PT3/4". 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. |
| 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. |
| (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 · PT3/4" · 0.05 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR400 |
| Line order | Filter first, then regulator, then lubricator |
On a workshop pneumatic press, the GR600-20T sits in the 3/4 in main drop and holds a fixed clamp pressure so the workpiece is gripped consistently cycle after cycle, with the 0.05-0.9 MPa range covering typical clamping setpoints.
Feeding the cylinders and air jets of a carton-sealing or case-packing conveyor line, this regulator keeps the downstream pressure steady even as the main supply fluctuates, protecting the machine's actuation from overpressure.
Installed at the take-off point of a factory compressed-air header, the 600-size 3/4 in NPT connection lets one GR600-20T regulate the supply to an entire cell or machine group at the pressure that cell needs, independent of the main line.
Sizing a GR600-20T starts with the port and the flow demand: the 600 size is the largest in the GR range and carries a 3/4 in NPT port, so step up or down through 200/300/400/600 to match the pipe size and air demand of the line it feeds. Because the GR family's flow is published as curves rather than one rated number, tell us your flow requirement and we will confirm the right size against the datasheet before you order. Other decodable choices: gauge (none fitted here - an external round gauge can be specified, with MPa, psi or bar scale), bracket (not included under code J, and the unit is panel-mountable), low-pressure L type (up to 0.4 MPa) if your setpoint sits low, and a K-code reverse/check valve if backflow protection is needed. Thread is NPT on this unit; PT is the AirTAC standard and G (BSPP) is the alternative order option.
All GR regulators share the 0.05-0.9 MPa (7-130 psi) standard adjustment range, a 1.0 MPa (145 psi) maximum inlet pressure, and low pressure drop as stated in the AirTAC catalogue. If any figure you need is not listed here, route it to us for confirmation on request.
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 curves, not as a single rated figure, so we do not quote a rated flow, Cv or SCFM number for this unit. Send us your application's flow and pressure requirements and we will confirm the sizing against the datasheet on request before you order.
Correct: the N code means no gauge is supplied. GR regulators accept an external round gauge as an option, with your choice of MPa, psi or bar scale. On thread: this unit has a 3/4 in NPT port (T code); PT is the AirTAC standard thread and G (BSPP) is also available as an order option - specify the one that matches your piping.
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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.