
The AirTAC B52-GR Copper-Free Air Source Treatment Unit B52-GR20008LJC1 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.
GR20008LJC1 belongs to AirTAC's GR regulator series: it reduces and stabilises downstream pressure on a compressed-air line, with no filtration, no bowl and no lubrication in the unit. This is the size 200 body with a PT1/4 taper port, ordered in the low-pressure L type whose set pressure tops out at 0.4 MPa. The J means no mounting bracket is supplied, and C1 specifies an external round pressure gauge scaled in MPa.
This is a genuine AirTAC part. The GR family handles compressed air at up to 1.0 MPa (145 psi) inlet and -20 to 70 C, and spans sizes 200, 300, 400 and 600 with larger ports and more flow as you step up. Options include brackets, square or round gauges in MPa, psi or bar scales, a reverse (check) valve, and G (BSPP) or NPT threads alongside the standard PT. Flow is published only as curves, so ask us to confirm sizing and the datasheet on request.
| Model | Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR20008LJC1 |
|---|---|
| Series | GR200 pressure regulator |
| Port size | PT1/4" (PT thread) |
| Regulating range | 0.05 - 0.4 MPa (7 - 58 psi) |
| Pressure type | Low-pressure type |
| Bracket | Supplied without bracket |
| 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.
| GR200 | G-series pressure regulator, 200 body — sets the port range. |
|---|---|
| 08 | Port size PT1/4". This body offers 06 = PT1/8", 08 = PT1/4". |
| L | Low-pressure type — 0.05 - 0.4 MPa (7 - 58 psi). Blank is standard, L is the low-pressure type. |
| J | Supplied without bracket. |
| (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.
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 | GR200 · PT1/4" · 0.05 - 0.4 MPa (7 - 58 psi) |
|---|---|
| One size up | GR300 |
| Line order | Filter first, then regulator, then lubricator |
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Regulate air to the swing clamps on a CNC workholding fixture, holding parts at a low set pressure during light machining.
Supply reduced-pressure air to the stopper and cap press cylinders on a small bottling line, protecting glass containers from hard impacts.
Use the size/port step to match your line: 200 with PT1/4 suits compact branch circuits, while 300/400/600 increase port size and capacity - verify against the flow curves. Decide between this low-pressure L version (set up to 0.4 MPa) and the standard GR range of 0.05-0.9 MPa (7-130 psi). Pick your gauge: external round (C) or embedded square (F), scaled in MPa, psi or bar. Thread is PT as standard with G and NPT available as ordered options; J means no bracket, though GR can also be panel-mounted and bracketed versions exist. Since flow is published as curves rather than one rating, ask us to confirm sizing 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 GR flow as curves, not as a single rated number, so we deliberately do not quote a flow figure. Give us your inlet pressure, set pressure and demand, and we will confirm the right size against the datasheet curves on request.
Yes. J means this unit is supplied without a mounting bracket. Bracketed versions are available in the same size, and the GR family can also be panel-mounted. Tell us which mounting you need when ordering.
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.