
The AirTAC B52-GR Copper-Free Air Source Treatment Unit B52-GR60020JNK 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 PT3/4" 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.
The GR60020JNK is an AirTAC G-series air pressure regulator: it controls downstream air pressure only, with no filtration, no bowl and no lubrication function. The JNK decode means size 600 with PT3/4 ports, no mounting bracket, no gauge, and a built-in reverse (check) valve that keeps downstream pressure from bleeding back when the upstream supply drops. Outlet pressure is adjustable from 0.05 to 0.9 MPa (7-130 psi), and the maximum working pressure is 1.0 MPa (145 psi).
This is a genuine AirTAC part. The G-series regulator line runs from size 200 through 600 with 1/8 in to 1 in ports in PT, G (BSPP) and NPT threads, with gauge, bracket and check-valve options to suit the installation. Flow is published as performance curves rather than a single rating, so we confirm exact flow and datasheet figures on request before you order.
| Model | Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR60020JNK |
|---|---|
| Series | GR600 pressure regulator |
| Port size | PT3/4" (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.
| GR600 | G-series pressure regulator, 600 body — sets the port range. |
|---|---|
| 20 | Port size PT3/4". This body offers 20 = PT3/4", 25 = PT1". |
| (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.
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 | GR600 · PT3/4" · 0.05 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR400 |
| Line order | Filter first, then regulator, then lubricator |
Sets and holds a stable supply pressure to 3/4-in-piped pneumatic actuators that stroke process valves, so the valve positions the same way every cycle.
Regulates the air feeding power clamps and swing cylinders so workholding force stays repeatable from part to part; the check valve holds the setting if the supply dips.
Feeds the gate and stopper cylinders that index bottles along a conveyor line, keeping their stroke speed consistent by fixing their supply pressure.
Size 600 with 3/4 in PT ports is the larger end of the G-series range; step to 200, 300 or 400 (down to 1/8 in ports) if your line needs less port capacity. On this model the J removes the mounting bracket, N omits the gauge, and K adds a reverse (check) valve to hold the downstream setting. Thread is PT as standard, with G (BSPP) and NPT available as order options; GR tolerates -20 to 70 C.
Be aware that regulator flow for this series is published as curves, not as a single rated number, so tell us your required flow and we will confirm sizing against the datasheet before ordering.
Quick checklist
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 publishes regulator flow as performance curves rather than a single rated figure, so we do not quote a flow number here. Send us your line flow and operating pressure and we will confirm the correct size against the datasheet on request.
In the G-series code, N means no gauge is supplied and J means the mounting bracket is omitted, which suits panel or machine-mounted installations where you already have both. K specifies a built-in reverse (check) valve that holds downstream pressure when the upstream supply is lost.
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.