Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008LC1
The AirTAC Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008LC1 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, 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 - 0.4 MPa (7 - 58 psi)
- Pressure typeLow-pressure type
- Pressure gaugeFitted
- Reflux valveNot fitted
- ThreadPT
- BracketFixing bracket included
About the Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008LC1
The AirTAC GR series is a pure air pressure regulator: it reduces and holds a steady downstream pressure from your compressed air supply, with no filtration, no bowl and no lubrication. This GR300-08LC1 is the 300 size with a 1/4 inch PT port in the L low-pressure type, whose setting range tops out at 0.4 MPa - the right choice for circuits that must not be run at high pressure. An external round pressure gauge with an MPa scale is fitted so the setting can be read directly, and the mounting bracket is included.
This is a genuine AirTAC part. The G series regulators come in 200, 300, 400 and 600 sizes with ports from 1/8 to 1 inch, PT as standard thread with G and NPT options to order, a check-valve variant, and an operating temperature of -20 to 70 C. AirTAC publishes regulator flow as curves rather than a single rating, so we confirm the flow and datasheet figures for your application on request.
Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008LC1 Technical Specifications
| Model | Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008LC1 |
|---|---|
| Series | GR300 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 | Fitted — round, MPa scale |
| Reflux valve | Not fitted |
| 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-GR30008LC1
| 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". |
| 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. |
| (blank) | Pressure gauge fitted (blank). |
| C | Gauge shape: Round. C is round, F is square. |
| 1 | Gauge scale: MPa. 1 is MPa, 2 is psi, 3 is bar. |
| (blank) | PT thread. PT is the default; G is BSPP and T is NPT. |
| (blank) | No reverse-flow valve (the default). |
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 - 0.4 MPa (7 - 58 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-GR30008LC1 Is Used
Spray-gun air line in a paint shop
Drops branch pressure to the low setting a spray gun needs, with the local round gauge letting the operator check the MPa reading at the booth.
Air supply to a pneumatic test bench
Sets gentle, repeatable low pressures on a lab or QA bench where test pieces must not see full line pressure.
Low-pressure circuit on a textile air machine
Feeds jet and tensioning circuits on weaving or spinning equipment that runs at modest pressures, regulated at the machine.
Is the Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008LC1 the Right Regulator?
Pick this low-pressure L type when your set point sits well below the standard regulator range - it is limited to 0.4 MPa by design. The 300 body takes a 1/4 inch PT port; step to 200, 400 or 600 if your piping differs. The fitted round gauge reads in MPa; order the LC2 code instead if your team works in psi. G or NPT threads and a check-valve version are catalogue options. 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.
Without a reflux valve, air cannot flow back through the regulator — order the K option if reverse flow is required. A regulator does not remove water or particulate; that is the filter's job.
Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008LC1 FAQ
AirTAC publishes regulator flow as characteristic curves, not as a single rated figure, so we do not state a number here. Tell us your set pressure and demand and we will confirm the flow from the datasheet on request.
The L type limits the adjustment range to 0.4 MPa, for circuits that must stay at low pressure; the standard version adjusts from 0.05-0.9 MPa. Choose the L code when the higher range is neither needed nor wanted.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Request a Quote for Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30008LC1
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.