Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR40010NK
The AirTAC B52-GR Copper-Free Air Source Treatment Unit B52-GR40010NK 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.
- TypePressure regulator
- Port sizePT3/8"
- Regulating range0.05 - 0.9 MPa (7 - 130 psi)
- Pressure typeStandard type
- Pressure gaugeNot fitted
- 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-GR40010NK
The AirTAC GR400-10NK is a genuine AirTAC G-series air pressure regulator - regulation only, no filter and no lubricator - with a reverse/check valve fitted, indicated by the K suffix. This 400-size unit has PT3/8 ports and is the standard-pressure type with an adjustment range of 0.05-0.9 MPa (7-130 psi). No gauge is fitted (N). Maximum inlet pressure is 1.0 MPa (145 psi) and the working temperature range is -20 to 70 C (non-freezing).
This is a genuine AirTAC part within the GR family, covering 200, 300, 400 and 600 sizes from PT1/8 to PT1. The range offers an embedded square gauge or an optional external round gauge, a low-pressure type limited to 0.4 MPa, the reverse/check valve option, panel mounting and a no-bracket variant. Pressure loss on the GR is low. AirTAC publishes flow as curves, not a single rated figure, so we will confirm flow and datasheet figures for your application on request.
Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR40010NK Technical Specifications
| Model | Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR40010NK |
|---|---|
| Series | GR400 pressure regulator |
| Port size | PT3/8" (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 | 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.
Model Code: Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR40010NK
| GR400 | G-series pressure regulator, 400 body — sets the port range. |
|---|---|
| 10 | Port size PT3/8". This body offers 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. |
| 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.
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 | GR400 · PT3/8" · 0.05 - 0.9 MPa (7 - 130 psi) |
|---|---|
| One size down | GR300 |
| One size up | GR600 |
| Line order | Filter first, then regulator, then lubricator |
Where the Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR40010NK Is Used
Air tool drop at a maintenance workbench
Set a fixed, controlled pressure for impact wrenches and ratchets at a service bench, with the check valve helping hold the set pressure if shop supply is interrupted.
Conveyor gate and diverter cylinders
Regulate the air to sorting gates and pusher cylinders on a conveyor line so actuation force is repeatable, with the check valve holding the circuit if the main supply drops.
Machine clamp circuit on a fixture line
Supply power clamps on a manual assembly station at a set pressure so operators get consistent clamping force, protected against backflow when upstream pressure falls.
Is the Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR40010NK the Right Regulator?
Choose the K (check valve) variant when you want the regulator to hold the downstream setting if supply pressure is lost, rather than venting back through the unit - otherwise the plain GR400-10N is the same regulator. Size 400 gives a PT3/8 port; step to 200/300 or up to 600 if your circuit needs different porting and flow. The N code means no gauge; a square or round gauge can be ordered instead. A bracket is included as coded (J would delete it) and GR also panel-mounts. PT thread is standard; specify G (BSPP) or NPT at order time. Flow is published as curves, not one rating, so let us confirm sizing against your flow requirement before ordering.
Quick checklist
- ✓ Body size for your peak flow (PT3/8" 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-GR40010NK FAQ
AirTAC publishes regulator flow as characteristic curves rather than a single rated flow number, so there is no one figure we can quote. Send us your flow and pressure conditions and we will confirm the relevant GR400-10NK curve figures from the datasheet on request.
K means a reverse (check) valve is fitted, so the regulator's set downstream pressure is held rather than flowing back through the unit if upstream supply is lost. Everything else in the code is standard: 400 size, PT3/8 port, PT thread, no gauge, bracket included.
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Standard models are processed and dispatched in 3-5 business days.
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