The AirTAC GR30010NTK AirTAC Air Pressure Regulator, NPT 3/8 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 PT3/8" 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 GR30010NTK is an AirTAC GR-series air pressure regulator in the 300 size with 3/8 in NPT ports. It does one job only: reducing and holding downstream air pressure, adjustable across 0.05-0.9 MPa (7-130 psi), with a maximum inlet pressure of 1.0 MPa (145 psi). The K in the code means a reverse (check) valve is fitted, so downstream pressure is held if the upstream supply drops. No gauge is fitted in this version, and being a regulator there is no filter, no bowl and no drain. It carries a -20 to 70 C temperature rating, wider than the rest of the G family, and a mounting bracket is included; the GR 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 in to 1 in, and options include G (BSPP) or NPT threads, a fitted gauge with MPa, psi or bar scale, a low-pressure type limited to 0.4 MPa, and a reverse valve. Flow figures are published as curves rather than a single rating, so ask us and we will confirm the datasheet figures for your application on request.
| Model | GR30010NTK AirTAC Air Pressure Regulator, NPT 3/8 in |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT3/8" (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.
| GR300 | G-series pressure regulator, 300 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". This body offers 08 = PT1/4", 10 = PT3/8", 15 = PT1/2". |
| (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 | GR300 · PT3/8" · 0.05 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR200 |
| One size up | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Set a stable, reduced pressure feeding the gripper circuit of a pick-and-place robot, so part clamping stays consistent through the shift.
Regulate supply to the pneumatic cylinders that push, stop and index bottles on a filling line, keeping actuation gentle and repeatable.
Hold the working pressure for carton-sealing and wrapping machine actuators, with the check valve holding the setting if plant air dips.
Choose GR by size and port: 200, 300, 400 or 600, with ports from 1/8 in up to 1 in - step up a size when the line carries more flow. This unit is NPT; PT is the standard thread and G (BSPP) is the alternative order option, so match the thread to your fittings. Decide whether you need a gauge fitted (square embedded or external round, with MPa, psi or bar scale) - the N in this code means none is supplied. Add K if you want the reverse/check valve, or the L low-pressure type if your setting stays at or below 0.4 MPa. A bracket is included and the GR can also be panel-mounted.
One honest note on sizing: AirTAC publishes regulator flow as curves, not a single rated figure, so we do not quote a flow number here. Tell us your application and we will confirm the sizing against the datasheet curves 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 regulator flow as curves, not as a single rated number, so we do not state a flow figure here. Tell us your line pressure, setting and downstream demand, and we will confirm the sizing from the datasheet curves on request before you order.
K means a reverse (check) valve is fitted, so downstream pressure is held if upstream supply is lost. The N in the code means no gauge is supplied with this unit; a gauge (embedded square or external round, with MPa, psi or bar scale) is available as an order option.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business 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.