AirTAC GR200-08 Pressure Regulator (GR20008LJNK)
The AirTAC AirTAC GR200-08 Pressure Regulator (GR20008LJNK) is a genuine G-series air pressure regulator. It holds a stable downstream pressure over the range 0.05 - 0.4 MPa (7 - 58 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 - 0.4 MPa (7 - 58 psi)
- Pressure typeLow-pressure type
- Pressure gaugeNot fitted
- Reflux valveFitted
- ThreadPT
- BracketSupplied without bracket
- 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 (GR20008LJNK)
The GR20008LJNK is a genuine AirTAC G-series air pressure regulator for compressed air only, in the low-pressure type with outlet pressure adjustable up to 0.4 MPa. It carries a PT1/4 port in the 200 size. The N means no pressure gauge is supplied and J means no mounting bracket is included, while the trailing K means a reverse/check valve is fitted, so the downstream setting is held if the upstream supply is interrupted.
This is a regulation-only unit: no filter element, no drain bowl and no lubricator are built in. Maximum working pressure is 1.0 MPa (145 psi), the working temperature range is -20 to 70 C, and the 200 size is the most compact step of the G series, which continues through 300, 400 and 600 with larger ports and greater flow capacity. Flow data is published as curves rather than a single rated figure, so we confirm the datasheet and flow figures for your application on request.
AirTAC GR200-08 Pressure Regulator (GR20008LJNK) Technical Specifications
| Model | AirTAC GR200-08 Pressure Regulator (GR20008LJNK) |
|---|---|
| Series | GR200 pressure regulator |
| Port size | PT1/4" (PT thread) |
| Regulating range | 0.05 - 0.4 MPa (7 - 58 psi) |
| Pressure type | Low-pressure 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 | 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 (GR20008LJNK)
| 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". |
| L | Low-pressure type — 0.05 - 0.4 MPa (7 - 58 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. |
| (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 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size up | GR300 |
| Line order | Filter first, then regulator, then lubricator |
Where the AirTAC GR200-08 Pressure Regulator (GR20008LJNK) Is Used
Lab instrument air supply
Feeds steady low-pressure air to analytical instruments and sample-handling pneumatics in a laboratory, with the check valve protecting the instrument side from backflow if the supply drops.
Clamping circuit with hold
Maintains clamp pressure on jig cylinders during brief compressor or supply dips, so workpieces stay secured until air is restored on a fabrication cell.
Trailer door actuation
Regulates the air driving swing-door actuators on trailers and delivery vehicles, keeping actuation pressure low while the check valve holds the doors in position during pressure loss.
Is the AirTAC GR200-08 Pressure Regulator (GR20008LJNK) the Right Regulator?
Choose this PT1/4, 200-size unit when your setpoint stays within the low-pressure type's 0.4 MPa range and you want the check valve to hold downstream pressure through supply interruptions; without the K, air can bleed back upstream. The N and J codes mean you supply your own gauge and mounting - order a gauge-coded version or a code without J if you want the embedded square gauge or the optional bracket fitted at the factory. Thread is standard PT, with G (BSPP) and T (NPT) as catalogue options; step up to 300/400/600 if the 200-size flow curve does not cover your demand. Flow is published as curves, not a single rating, so ask us to confirm sizing against your 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 - 0.4 MPa (7 - 58 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 (GR20008LJNK) FAQ
Yes, on request. AirTAC publishes G-series flow as curves across pressures and setpoints rather than one rated number, so we do not quote a single figure. Share your line pressure, setpoint and air demand and we will confirm the datasheet and curve data for this 200-size, PT1/4 low-pressure regulator before you order.
K specifies that a reverse/check valve is fitted, so downstream pressure is held if the upstream supply is interrupted; the same code without the K has no check valve. The rest of the code is unchanged: low-pressure regulation up to 0.4 MPa, PT1/4 port in the 200 size, no gauge (N) and no bracket (J).
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Standard models are processed and dispatched in 3-5 business days.
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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.