Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008C3K
The AirTAC B52-GR Copper-Free Air Source Treatment Unit B52-GR30008C3K 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, and ships with a pressure 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 gaugeFitted
- 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 B52-GR Copper-Free Air Source Treatment Unit B52-GR30008C3K
The AirTAC GR30008C3K is a genuine AirTAC G-series air pressure regulator that reduces and holds a stable downstream pressure from your compressed air supply, with no filtering or lubrication function. This size 300 unit has a PT1/4 port, an external round pressure gauge on a bar scale, and the K suffix adds a reverse (check) valve so downstream air cannot flow back through the regulator. Regulation range is 0.05-0.9 MPa (7-130 psi) with a maximum inlet pressure of 1.0 MPa (145 psi), and the operating temperature range is -20 to 70 C.
This is a genuine AirTAC part in the GR family, which spans sizes 200, 300, 400 and 600 with 1/8" to 1" ports, optional G (BSPP) or NPT threads, round or square gauges in MPa, psi or bar scales, a low-pressure type, and a bracket for mounting. Flow figures for this series are published as curves rather than a single rating, so ask us to confirm the datasheet and sizing for your application on request.
Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008C3K Technical Specifications
| Model | Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008C3K |
|---|---|
| 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 | Fixing bracket included |
| Fluid | Compressed air |
|---|---|
| Max. working pressure | 1.0 MPa (145 psi) |
| Temperature range | -20 to +70 °C |
| Pressure gauge | Fitted — round, bar scale |
| 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-GR30008C3K
| 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. |
| (blank) | Fixing bracket included. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 3 | Gauge scale: bar. 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-GR30008C3K Is Used
Air surge tank charging on a press line
Regulates the fill pressure of a receiver tank that buffers air for high-demand press strokes, with the check valve stopping the stored air from escaping back through the regulator between cycles.
Robot gripper circuit on an assembly cell
Sets the gripping pressure for pneumatic grippers on a robotic assembly cell, keeping part-handling force repeatable and preventing back-flow from disturbing the set pressure when other valves exhaust.
Regulated air to a laboratory reactor skid
Supplies instrument air to valves and agitator drives on a lab-scale reactor skid at a controlled pressure, with the bar gauge giving technicians a local, familiar readout.
Is the Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008C3K the Right Regulator?
Choose the GR size (200/300/400/600) to match your port and required flow - larger sizes mean larger ports and more flow. The PT thread is the standard here; G (BSPP) and NPT versions are catalogue options to order. This code pairs the round bar-scale gauge with the K reverse check valve, a combination to select deliberately when back-flow must be blocked; the same unit without K, other gauge scales, and the embedded square gauge are all available codes. Flow in this series is published as curves, not a single rated figure, 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 - 0.9 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-GR30008C3K FAQ
AirTAC publishes regulator flow as performance curves rather than a single rated number, so we do not quote a fixed figure. Ask us to confirm the flow curves and datasheet for the GR30008C3K on request, and we will help you check it against your application before you order.
No. The K suffix simply adds a check valve that blocks back-flow through the regulator; adjustment and the 0.05-0.9 MPa regulation range are the same as the standard unit. It is a circuit-design choice, so order a code without K if your system does not need back-flow protection.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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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.