The AirTAC GR20008JF3TK AirTAC Air Pressure Regulator NPT1/4 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 PT1/4" 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 GR20008JF3TK is an AirTAC GR-series air pressure regulator for compressed air: it holds a steady downstream pressure for the tools, cylinders and valves fed from your air line, and it does nothing but regulate - no filter element and no lubricator are part of this unit. This configuration is the GR200 size with a 1/4 in NPT thread, a standard-type regulator adjustable from 0.05 to 0.9 MPa (7-130 psi), an embedded square gauge scaled in bar, and a reverse (check) valve fitted so downstream pressure is held if the supply side drops. It is supplied without a mounting bracket; GR regulators are also panel-mountable.
This is a genuine AirTAC part. The GR family spans sizes 200, 300, 400 and 600 with port sizes from 1/8 to 1 in, in PT (standard), G (BSPP) or NPT thread, with gauge scale, low-pressure type, bracket and check-valve options to order. 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. Flow is published as curves rather than a single rated figure, so ask us to confirm sizing figures from the datasheet for your application.
| Model | GR20008JF3TK AirTAC Air Pressure Regulator NPT1/4 |
|---|---|
| Series | GR200 pressure regulator |
| Port size | PT1/4" (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 | 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.
| GR200 | G-series pressure regulator, 200 body — sets the port range. |
|---|---|
| 08 | Port size PT1/4". This body offers 06 = PT1/8", 08 = PT1/4". |
| (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. |
| 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 | GR200 · PT1/4" · 0.05 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size up | GR300 |
| Line order | Filter first, then regulator, then lubricator |
A fixture builder feeding clamp cylinders from a shared header fits the GR20008JF3TK at the fixture drop to hold a steady, repeatable clamping pressure, with the check valve keeping the clamps from relaxing if the main supply dips mid-cycle.
On a machining centre or lathe, the regulator sits in the line feeding tool-change cylinders, chip doors and air-blast nozzles, letting the maintenance team set and read the machine's working pressure on the bar-scaled square gauge.
A packaging line engineer uses the regulator ahead of the machine's valve manifold so gripper and sealing cylinders see stable pressure shift after shift, with the 1/4 in NPT port matching the machine's standard air inlet.
Start with the port step: GR200 carries a 1/4 in port, and the larger GR300/400/600 sizes step up in port and flow capacity - pick the size against the air demand of the circuit rather than the pipe alone. Set the adjustment range against your working pressure: this standard-type GR covers 0.05-0.9 MPa (7-130 psi); a low-pressure L variant (up to 0.4 MPa) exists if your process runs lower. Choose the gauge scale you want to read - MPa, psi or bar - this unit is built with the square gauge in bar, and an external round gauge is available as an option. Thread is a real order choice: PT is the standard, while G (BSPP) and NPT (as on this model) are specified variants, so match the thread to your piping. Decide whether you want the reverse/check valve (fitted here, code K) to hold downstream pressure on supply loss, and whether you need the mounting bracket or will panel-mount. Flow for GR regulators is published as curves, not a single rated number, so send us your flow and pressure requirements and we will confirm the right size from the datasheet before you order.
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 regulator flow as performance curves rather than a single rated figure, so we do not quote a Cv, l/min or SCFM number for this unit. Tell us your line pressure, set pressure and air demand, and we will confirm the sizing against the datasheet curves for you before you order.
The JF3TK code specifies the embedded square gauge with a bar scale; MPa and psi scales are catalogue options, and an external round gauge is also available. The T in the code sets the NPT thread - PT is the standard thread and G (BSPP) is offered as an order option - so specify the scale and thread you want when ordering other units in this series.
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.