The AirTAC GR20008NTK 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, 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 GR20008NTK is an AirTAC GR-series air pressure regulator: it does one job, holding a stable downstream pressure from a compressed-air supply. This size-200 unit takes a 1/4 in NPT port, adjusts from 0.05 to 0.9 MPa (7-130 psi), and carries a built-in reverse (check) valve so downstream pressure is retained when the upstream supply is removed. No gauge is fitted with this code, so add your own if you need a setpoint readout. A mounting bracket is included, and the body is 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, optional G or NPT threads in place of the PT standard, an optional low-pressure type limited to 0.4 MPa, and gauge or check-valve choices. Because AirTAC publishes regulator flow only as curves rather than a single rated figure, we confirm the datasheet and flow figures for your application on request.
| Model | GR20008NTK 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 | 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.
| 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. |
| (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 | GR200 · PT1/4" · 0.05 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size up | GR300 |
| Line order | Filter first, then regulator, then lubricator |
Set and hold a repeatable working pressure feeding a small pneumatic press or clamping cylinder, with the check valve keeping the circuit pressurised between strokes.
Regulate the supply to sealing bars, diverters and small actuators on a packaging line, protecting them from swings in the shop-air header pressure.
Panel-mount the regulator at a control branch to give a stable, adjustable pressure to solenoid valves and pilot circuits fed through 1/4 in NPT piping.
Start with the size and port: 200 is the smallest GR frame, and stepping up through 300, 400 and 600 gives larger ports and more flow capacity, so size against the air demand of the circuit rather than the pipe alone. Decide on the check valve: the K code here retains downstream pressure on air-off, which matters for circuits that must hold position or pressure between cycles; omit it where a full vent-down is wanted. Choose the gauge option and its scale (MPa, psi or bar) if you need a setpoint readout, and pick the thread: PT is the standard, with G (BSPP) and NPT as catalogue options to order - this code is NPT. GR also has a low-pressure L type capped at 0.4 MPa for sensitive circuits. On sizing, be aware that flow is published as curves, not a single rating, so ask us to confirm the figures 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 regulator flow as curves rather than a single rated figure, so we do not quote one number here. Tell us your inlet pressure, set pressure and expected air demand, and we will confirm the flow figures from the datasheet for this exact model before you order.
The N in the code means no gauge is fitted, so you adjust the setpoint with a separate gauge or by your own reference; gauge options with MPa, psi or bar scales are available on other codes. The K means a reverse (check) valve is built in, so downstream pressure is held when the upstream supply is shut off.
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.