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Select all	Attribute	Value
	Brand	SMC
	Port Size	1/2 in G
	Product Type	Pneumatic Regulator
	Connection Thread Standard	G
	Series	AR
	Body Material	Die Cast Zinc
	Maximum Flow Rate	20L/min
	Maximum Operating Pressure	1 Mpa
	Minimum Operating Temperature	-5°C
	Maximum Operating Temperature	60°C
	Standards/Approvals	RoHS
	Pressure Setting Range	0.05 to 0.85 MPa

	Select all
	Brand SMC
	Port Size 1/2 in G
	Product Type Pneumatic Regulator
	Connection Thread Standard G
	Series AR
	Body Material Die Cast Zinc
	Maximum Flow Rate 20L/min
	Maximum Operating Pressure 1 Mpa
	Minimum Operating Temperature -5°C
	Maximum Operating Temperature 60°C
	Standards/Approvals RoHS
	Pressure Setting Range 0.05 to 0.85 MPa

SMC Series AR Pneumatic Regulator, 20L/min Maximum Flow Rate, 0.05 to 0.85MPa Pressure Setting Range - AR40-F04-D

This pneumatic regulator controls Air pressure in industrial pneumatic systems, providing a Compact solution for pressure adjustment and relief in automation and mechanical applications. It is designed for in-line use with G-threaded pipework and includes an overpressure exhaust mechanism to protect downstream equipment while operating across a wide ambient temperature range.

Features & Benefits

• Pressure setting range 0.05 to 0.85 MPa for precise control
• Maximum operating pressure 1.0 MPa to suit high-pressure loops
• Maximum flow capability 20 L/min for small high-flow tasks
• Die-cast zinc body offering mechanical robustness and stability
• Port size 1/2in G for straightforward G-thread installation

Applications

• Suitable for regulating Air supply to pneumatic actuators in automation
• Ideal for pressure control on test rigs requiring adjustable set points
• Used with pneumatic control panels in electronics assembly lines
• Can be used for conditioning instrument Air in mechanical workshops

What exhaust behaviour does it use for pressure reduction?

It employs a relieving exhaust mechanism that vents excess downstream pressure to atmosphere when set pressure is reduced, enabling Rapid depressurisation of the downstream circuit.

What temperatures can it reliably operate within?

The unit functions with media and ambient temperatures between -5°C and 60°C, provided there is no freezing of the medium.

What proof pressure is it rated to withstand?

The regulator is proof-tested to 1.5 MPa to verify structural integrity above normal operating pressure.

How is flow direction configured for installation?

The internal passage is arranged for left-to-right flow through the body, with the adjustment knob oriented downwards for standard mounting.

SMC 1/2 in G Pneumatic Regulator - 1 Mpa, AR40-F04-D 20L/min, G AR

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