AirTAC GR200-08 Pressure Regulator (GR20008NK)
The AirTAC AirTAC GR200-08 Pressure Regulator (GR20008NK) 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.
- TypePressure regulator
- Port sizePT1/4"
- Regulating range0.05 - 0.9 MPa (7 - 130 psi)
- Pressure typeStandard type
- Pressure gaugeNot fitted
- Reflux valveFitted
- ThreadPT
- BracketFixing bracket included
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the AirTAC GR200-08 Pressure Regulator (GR20008NK)
The GR20008NK is a genuine AirTAC G-series air pressure regulator for compressed air only. It reduces and holds a steady downstream pressure across the standard adjustment range of 0.05-0.9 MPa (7-130 psi), and the K suffix means a reverse (check) valve is fitted, so downstream pressure is held if the upstream supply dips. The N suffix means no gauge is supplied. It decodes to size 200 with PT1/4 (1/4 inch PT) ports and, with no bracket code, a mounting bracket is included. Maximum inlet pressure is 1.0 MPa (145 psi), the working temperature range is -20 to 70 C, and pressure loss through the regulator is low.
This is a genuine AirTAC part, not a copy or a substitute. The GR series is available in sizes 200, 300, 400 and 600 with ports from 1/8 inch to 1 inch and PT, G (BSPP) or NPT threads, in standard or low-pressure types, with gauge options and the reverse valve. AirTAC publishes regulator flow as curves rather than a single rated figure, so we confirm flow and datasheet figures on request before you order.
AirTAC GR200-08 Pressure Regulator (GR20008NK) Technical Specifications
| Model | AirTAC GR200-08 Pressure Regulator (GR20008NK) |
|---|---|
| Series | GR200 pressure regulator |
| Port size | PT1/4" (PT 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.
Model Code: AirTAC GR200-08 Pressure Regulator (GR20008NK)
| 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. |
| (blank) | PT 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.
Size Class
- GR200PT1/8" - PT1/4"
- GR300PT1/4" - PT1/2"
- GR400PT3/8" - PT1/2"
- GR600PT3/4" - PT1"
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 |
Where the AirTAC GR200-08 Pressure Regulator (GR20008NK) Is Used
Pneumatic press hold-down
Regulates the clamp circuit of a small pneumatic press, with the reverse valve holding downstream pressure on the workpiece if the shop air supply momentarily drops.
Palletizer gripper circuit
Feeds the vacuum-free gripper cylinders on a palletizer, keeping a firm, regulated grip on cartons even when the shared plant air header fluctuates.
Clamping fixture circuits
Supplies regulated air to pneumatic clamping fixtures on a machining fixture, where a loss of upstream pressure must not release the clamps mid-operation.
Is the AirTAC GR200-08 Pressure Regulator (GR20008NK) the Right Regulator?
Size 200 with a 1/4 inch port suits compact 1/4 inch circuits; step up to GR300/400/600 if your line or air demand is larger. The standard type adjusts from 0.05 to 0.9 MPa, and this code carries the K option, so pick it over the plain GR20008N whenever an upstream pressure drop, such as another machine drawing heavily on the same header, would otherwise let your downstream setting sag. The L low-pressure type (up to 0.4 MPa) exists if your setpoint sits below the standard range. No gauge is supplied under the N code; a square embedded gauge or an external round gauge in MPa, psi or bar can be specified.
Thread is PT as the standard; G (BSPP) and NPT are catalogue options. AirTAC publishes flow for the GR series as curves, not a single rated number, so ask us to confirm sizing against the application before ordering.
Quick checklist
- ✓ Body size for your peak flow (PT1/4" here)
- ✓ Standard 0.9 MPa or low-pressure 0.4 MPa
- ✓ Gauge fitted, or order N without
- ✓ Gauge shape C round / F square
- ✓ Scale MPa (1), psi (2) or bar (3)
- ✓ Reflux valve needed, order K
Installation & Maintenance Notes
- check Install downstream of the filter, following the airflow arrow.
- check Keep inlet pressure at or below 1.0 MPa (145 psi).
- check Set pressure while air is flowing, then lock the knob.
- check Adjust within 0.05 - 0.9 MPa (7 - 130 psi) only.
- check Operating range -20 to +70 °C.
- check Panel-mount or use the fixing bracket; do not hang it on tubing.
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 GR200-08 Pressure Regulator (GR20008NK) FAQ
AirTAC publishes regulator flow as performance curves across inlet pressures and setpoints rather than as a single rated figure, so we do not quote one number. Send us your inlet pressure, setpoint and demand, and we will confirm the flow figures from the datasheet on request before you order.
K means a reverse (check) valve is fitted in the regulator. If the upstream supply pressure falls below the downstream setting, the valve prevents backflow, so the regulated downstream pressure is held instead of bleeding back toward the supply. The rest of the decode is standard type, 0.05-0.9 MPa adjustment, no gauge, 1/4 inch PT ports.
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