
The AirTAC B52-GR Copper-Free Air Source Treatment Unit B52-GR30010JN 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 PT3/8" 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.
The GR30010JN is an AirTAC G-series air pressure regulator: it reduces and holds a stable downstream pressure from your compressed air line. The JN configuration is the 300 size with a PT3/8 port, standard pressure type, supplied without a mounting bracket and without a gauge. It is a regulation-only unit - there is no filter bowl and no lubricator in this device, so pair it with a separate GF filter or a full F.R.L. set if your line needs conditioning.
This is a genuine AirTAC part. The G-series regulator is offered in 200, 300, 400 and 600 sizes with a choice of PT, G or NPT threads, bracket or no bracket, gauge or no gauge, and an optional check (reverse) valve. We confirm flow and datasheet figures for this exact model on request.
| Model | Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR30010JN |
|---|---|
| Series | GR300 pressure regulator |
| Port size | PT3/8" (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 | 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.
| GR300 | G-series pressure regulator, 300 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". 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. |
| (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.
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 · PT3/8" · 0.05 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR200 |
| One size up | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Drop a plant 3/8 in air header down to the stable working pressure feeding a machine's directional valves and cylinders, with the setting held steady through shift-long cycling.
Regulate the supply to conveyor-mounted pneumatic clamps, pushers and stoppers so indexing force stays consistent as the main line pressure wanders.
Set a fixed, repeatable pressure on the 3/8 in drop feeding assembly-line air tools and impact drivers, protecting both the tooling and the workpiece.
Choose the 300 size with its 3/8 port when your line sits between the 1/4 in and 1/2 in steps - the right way to pick is the port step that matches your piping and the flow your actuator or machine draws, since larger sizes move more air. This JN code is standard pressure type, set anywhere in the 0.05-0.9 MPa range, with no gauge and no bracket - if you want a pressure readout, order a gauge variant; if you need wall or panel fixing, take a code without the J. Thread is PT as standard, with G (BSPP) and NPT available as catalogue options.
Flow for the GR series is published as curves, not a single rated figure, so send us your application details and we will confirm sizing against the datasheet before you order.
Quick checklist
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 publishes regulator flow as curves rather than a single rated figure, so we do not quote one number here. Tell us your line size and the air your application consumes, and we will confirm the flow and the full datasheet for the GR30010JN on request.
J means the regulator comes without a mounting bracket - order a code without the J if you want the bracket included. N means no pressure gauge is fitted; gauge-equipped variants let you read the outlet setting. The unit is otherwise a standard GR300 with a PT3/8 port and a 0.05-0.9 MPa adjustment range.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
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.