Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008JNK
The AirTAC B52-GR Copper-Free Air Source Treatment Unit B52-GR30008JNK 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
- 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 B52-GR Copper-Free Air Source Treatment Unit B52-GR30008JNK
B52-GR30008JNK is the copper-free (copper-prohibited) build of the AirTAC GR30008JNK air pressure regulator, intended for lines where copper and copper alloys are not permitted, such as ammonia systems and some battery, electronics and chemical plants. It is a regulation-only unit: it steps downstream pressure down and holds it steady across the 0.05-0.9 MPa (7-130 psi) adjustment range, with a maximum inlet pressure of 1.0 MPa (145 psi) and an operating temperature of -20 to 70 C. This configuration is PT1/4 (1/4 in PT thread), the standard regulator type, supplied without a gauge (code N) and without a mounting bracket (code J), and fitted with a reverse (check) valve (code K). The GR body carries no filter and no bowl, so nothing here filters or lubricates - it regulates.
This is a genuine AirTAC part. GR300 is the 300 size of AirTAC's G-series regulator family, which spans 200/300/400/600 sizes with ports from 1/8 to 1 in and PT, G (BSPP) or NPT threads as order options; the GR is also panel-mountable. Flow for this regulator is published as curves rather than a single rated figure, so ask us to confirm sizing against your application and we will read it from the datasheet on request. The B52- prefix marks AirTAC's copper-free build; our data does not list which specific parts are substituted, so please confirm the exact material substitutions with us.
Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008JNK Technical Specifications
| Model | Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008JNK |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT1/4" (PT thread) |
| Regulating range | 0.05 - 0.9 MPa (7 - 130 psi) |
| Pressure type | Standard 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 B52-GR Copper-Free Air Source Treatment Unit B52-GR30008JNK
| GR300 | G-series pressure regulator, 300 body — sets the port range. |
|---|---|
| 08 | Port size PT1/4". 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. |
| 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 | GR300 · PT1/4" · 0.05 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR200 |
| One size up | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Where the Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008JNK Is Used
Ammonia refrigeration plant controls
On an ammonia refrigeration installation, pneumatic valves and actuators on the pump-down and hot-gas lines need a steady supply pressure. A copper-free regulator lets the plant keep copper alloys out of the air supply circuit while holding the control-air pressure steady at the set point.
Battery cell manufacturing line
On a battery cell production line, clamping and stacking stations run off a shared compressed-air main. A copper-free regulator at each station branch drops the main pressure to the level the cylinder circuit was designed around and keeps it stable through the shift.
Chemical plant pneumatic valve actuation
In a chemical processing unit, air-operated control valves on dosing and transfer lines depend on clean, steady actuator pressure. A copper-free regulator on the actuator supply branch lets the plant prohibit copper in the circuit while giving each valve loop its own set pressure.
Is the Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008JNK the Right Regulator?
The real choices in this family are the size and port (200/300/400/600, ports 1/8 to 1 in - step up a size when the application demands more flow), the thread (PT is standard here; G and NPT are order options), the gauge (this unit is supplied without one; gauge variants with MPa, psi or bar scales exist), the bracket (omitted here, and GR is also panel-mountable), the low-pressure L type (adjustable up to 0.4 MPa) and the reverse/check valve, which is fitted in this unit as code K. Because flow is published as curves and not as a single rating, send us your application's flow and pressure requirements and we will confirm the right size from the datasheet before you order.
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 B52-GR Copper-Free Air Source Treatment Unit B52-GR30008JNK FAQ
AirTAC publishes regulator flow as curves rather than a single rated number, so we do not quote a flow figure here. Tell us your application's flow and pressure requirements and we will confirm the sizing from the datasheet on request.
B52- marks AirTAC's copper-free (copper-prohibited) build of the standard GR30008JNK, intended for lines where copper and copper alloys are not permitted, such as ammonia systems and some battery, electronics and chemical plants. Our data does not list which specific parts are substituted or any certification detail, so please confirm the exact material substitutions with us.
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Standard models are processed and dispatched in 3-5 business days.
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