Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR20008LNK
The AirTAC Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR20008LNK 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
- BracketFixing bracket included
About the Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR20008LNK
The GR20008LNK is a genuine AirTAC G-series air pressure regulator for compressed air only. It reduces and holds a steady downstream pressure from your plant supply. The L suffix marks the low-pressure type, with an adjustment range of up to 0.4 MPa, 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) and the working temperature range is -20 to 70 C.
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, with standard or low-pressure types, gauge options and an optional 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 B52-GR Copper-Free Air Source Treatment Unit B52-GR20008LNK Technical Specifications
| Model | Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR20008LNK |
|---|---|
| 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 | 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 B52-GR Copper-Free Air Source Treatment Unit B52-GR20008LNK
| 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. |
| (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 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size up | GR300 |
| Line order | Filter first, then regulator, then lubricator |
Where the Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR20008LNK Is Used
Spray booth atomizing air
Sets a gentle, stable low-pressure supply to the atomizing air circuit on paint spray guns in a finishing booth, where a full standard-range regulator is more than the process needs.
Food packaging tray sealers
Feeds the low-pressure clamp and sealing circuits of a tray-sealing machine, with the built-in reverse valve holding the setting if the shop air header fluctuates.
Laboratory pneumatic test rigs
Provides fine low setpoints on a bench-top pneumatic test rig, where operators need repeatable sub-0.4 MPa settings on a small 1/4 inch line.
Is the Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR20008LNK the Right Regulator?
Size 200 is the smallest step in the GR series and carries a 1/4 inch port, so it suits compact 1/4 inch line circuits. If your pipe run or expected air demand points to 3/8 inch or larger, step up to the GR300/400/600 instead. Choose the L low-pressure type only if your setpoint must sit below the standard regulator range, and remember the standard GR adjusts from 0.05 to 0.9 MPa while the L type goes up to 0.4 MPa. The K option is worth selecting whenever a momentary upstream pressure drop would disrupt your downstream setting. The N code means you order any gauge separately; a square embedded gauge or an external round gauge in MPa, psi or bar scales 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 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 B52-GR Copper-Free Air Source Treatment Unit B52-GR20008LNK FAQ
AirTAC publishes regulator flow as performance curves across inlet pressures and settings, not as a single rated figure, so we do not quote one number. Tell us your inlet pressure, setpoint and demand, and we will confirm the flow figures from the datasheet on request before you order.
L is the low-pressure type, adjusting up to 0.4 MPa instead of the standard 0.05-0.9 MPa range. N means no gauge is supplied with the regulator. K means a reverse (check) valve is fitted, so downstream pressure is held if the upstream supply drops.
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