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AirTAC GR400 · Air Pressure Regulator

Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR40010C1K

The AirTAC B52-GR Copper-Free Air Source Treatment Unit B52-GR40010C1K 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, 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 sizePT3/8"
  • Regulating range0.05 - 0.9 MPa (7 - 130 psi)
  • Pressure typeStandard type
  • Pressure gaugeFitted
  • Reflux valveFitted
  • ThreadPT
  • BracketFixing bracket included
$78.60 $84.23Save 6% Standard model — ready in 3-5 business days to process and dispatch
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  • 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.
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About the Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR40010C1K

The AirTAC GR400 series is a standalone compressed-air pressure regulator - regulation only, with no filter, no bowl and no lubrication. GR40010C1K is the 400 size with a 3/8 in PT thread, standard pressure type, an external round gauge with MPa scale (C1), and the K option fitting a reverse (check) valve to hold downstream pressure if the upstream supply is lost. Adjustment range is 0.05-0.9 MPa, maximum inlet 1.0 MPa (145 psi), working temperature -20 to 70 C. A mounting bracket is included.

This is a genuine AirTAC part. The G series runs in 200, 300, 400 and 600 sizes with ports from 1/8 in to 1 in, PT as the standard thread and G and NPT as catalogue options; GR can also be panel-mounted. Flow is published as characteristic curves rather than a single rating, so we confirm datasheet and sizing figures on request.

Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR40010C1K Technical Specifications

ModelAirtac B52-GR Copper-Free Air Source Treatment Unit B52-GR40010C1K
SeriesGR400 pressure regulator
Port sizePT3/8" (PT thread)
Regulating range0.05 - 0.9 MPa (7 - 130 psi)
Pressure typeStandard type
BracketFixing bracket included
FluidCompressed air
Max. working pressure1.0 MPa (145 psi)
Temperature range-20 to +70 °C
Pressure gaugeFitted — round, MPa scale
Reflux valveFitted (reverse flow permitted)
MountingPanel 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-GR40010C1K

GR400G-series pressure regulator, 400 body — sets the port range.
10Port 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.
(blank)Pressure gauge fitted (blank).
CGauge shape: Round. C is round, F is square.
1Gauge 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.
KReverse-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 modelGR400 · PT3/8" · 0.05 - 0.9 MPa (7 - 130 psi)
One size downGR300
One size upGR600
Line orderFilter first, then regulator, then lubricator

Where the Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR40010C1K Is Used

valve

Carton erector clamp holding circuit

Keeping the flap-fold clamp pressure on an automatic carton erposer stable during header pressure dips, with the check valve holding the downstream side.

factory

Air-spring and actuator press line

Regulating a 3/8 in feed to pressing and forming tooling that must not lose set pressure if the main supply is isolated, monitored on the round MPa gauge.

settings_input_component

Receiver-tank-fed machine cell

Serving a small machine cell from an accumulator tank, with the regulator setting cell pressure and the check valve preventing stored air back-feeding the header.

Is the Airtac B52-GR Copper-Free Air Source Treatment Unit B52-GR40010C1K the Right Regulator?

Choose the 400 size with a 3/8 in PT port when the supply needs more capacity than the 300 series; GR600 is the next step for the largest ports. The K suffix adds the check valve for circuits that must hold set pressure through upstream dips, and C1 gives the external round gauge in MPa - psi and bar scales and the embedded square gauge are the other gauge choices. PT is standard, with G and NPT threads to order, and a bracket is included.

Sizing depends on AirTAC's flow curves rather than a single rated figure, so send us your supply pressure, set pressure and demand and we will confirm the selection against the datasheet 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
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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-GR40010C1K FAQ

AirTAC publishes regulator flow as characteristic curves rather than a single rated number, so we do not quote a flow figure here. Provide your supply pressure, required set pressure and demand and we will confirm the sizing against the datasheet curves on request.

K fits a reverse (check) valve, so the downstream circuit keeps its regulated pressure when the upstream supply drops or is shut. Without the K the same 400 size, 3/8 in port and MPa round gauge configuration is ordered as the plain GR40010C1.

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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.

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