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What kind of product is the AR□K-B/AR□K-D series regulator with a backflow function?

The AR20K-B to AR60K-B and the AR20K-D to AR40K-D series are regulators with a backflow function.
For example, if you want to install a regulator between a valve and a cylinder, select a regulator with a backflow function for the smooth flow of the cylinder return side compressed air to the OUT → IN of the regulator.

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://smccatalog.partbuilder.smcpneumatics.com/support/faq/en-jp/?ca_id=vacuum-regulators&fa_id=10962

What kind of product is the AR□K-B/AR□K-D series regulator with a backflow function?

The AR20K-B to AR60K-B and the AR20K-D to AR40K-D are regulators with a backflow function.
For example, if you want to install a regulator between a valve and a cylinder, select a regulator with a backflow function for the smooth flow of the cylinder return side compressed air to the regulator.

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://smccatalog.partbuilder.smcpneumatics.com/support/faq/en-jp/?ca_id=combination-units&fa_id=10975

VP517KY-5DZA1-BR

Series: 5 (VP500), Pressure Specification: K (High-pressure Type, 1.0 MPa), Voltage: 5 (24 VDC), Electrical Entry: D (DIN Terminal w/Connector), Light/Surge Voltage Suppressor: Z (w/Light/Surge Voltage Suppressor), Manual Override: A (Non-locking Push Type, Manual), Bracket: B (w/Bracket), Flow Direction: R (Right to Left)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/VP517KY-5DZA1-BR

VP717KY-3D1-BR

Series: 7 (VP700), Pressure Specification: K (High-pressure Type, 1.0 MPa), Voltage: 3 [110 VAC, (115 VAC)], Electrical Entry: D (DIN Terminal w/Connector), Light/Surge Voltage Suppressor: w/o Light/Surge Voltage Suppressor, Manual Override: Non-locking Push Type, Bracket: B (w/Bracket), Flow Direction: R (Right to Left)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/VP717KY-3D1-BR

VP717KY-5DZE1-BR

Series: 7 (VP700), Pressure Specification: K (High-pressure Type, 1.0 MPa), Voltage: 5 (24 VDC), Electrical Entry: D (DIN Terminal w/Connector), Light/Surge Voltage Suppressor: Z (w/Light/Surge Voltage Suppressor), Manual Override: E (Push-turn Locking Type, Manual), Bracket: B (w/Bracket), Flow Direction: R (Right to Left)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/VP717KY-5DZE1-BR

ISE20B-L-N01-WA2K

Output Specification: IO-Link/Switch: 1 Output, PNP or NPN, Unit Specification: Unit Selection Function, Piping Specification: N01 (NPT1/8), Lead Wire: W (Lead Wire w/Connector, 5-core, 2m Lead Wire w/Waterproof Cover), Bracket: A2 [Bracket B, Horizontal Mounting (ZS-46-A2)], Operation Manual: K (Operation Manual, Calibration Certificate)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/ISE20B-L-N01-WA2K

ZSE10F-M5-B-PK

Pressure Range: F (-100.0 to 100kPa), Piping Specifications: M5 (M5 Female Thread/Side Piping Port), Output Specifications: B (PNP Open Collector 2 Outputs), Unit Specifications: P (Unit Switching Function, Initial Value psi, Not Allowed for Use in Japan), Lead Wire: No Lead Wire, Adapter: None, Calibration Certificate: K (w/Certificate)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/ZSE10F-M5-B-PK

VXD243KGBXB

Size/Valve Type: 4 (Size: 10A, 15A; Valve Type: N.C.), Body/Port/Orifice: K (Body Material: Stainless Steel; Port Size: 1/2, Orifice Dia.: 15), Voltage/Electrical Entry: G (24VDC; DIN Terminal w/Surge Voltage Suppressor), Other Voltages and Electrical Options: None, Other Options: B (NPT Thread), Bracket: XB (w/Bracket)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/VXD243KGBXB

ISE20-P-P-N7L-LA2K

Output Specification: P (PNP Open Collector 1 Output), Unit Specification: P (w/Unit Selection Function, Initial Value psi), Piping Specification: N7L (One-touch Fitting ø1/4", Elbow Type), Option 1: L (Lead Wire w/Connector, 2m), Option 2: A2 (Bracket B, Horizontal Mounting), Option 3: K (Operation Manual, Calibration Certificate)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/ISE20-P-P-N7L-LA2K

ISE20-N-P-N7L-LA2K

Output Specification: N (NPN Open Collector 1 Output), Unit Specification: P (w/Unit Selection Function, Initial Value psi), Piping Specification: N7L (One-touch Fitting ø1/4", Elbow Type), Option 1: L (Lead Wire w/Connector, 2m), Option 2: A2 (Bracket B, Horizontal Mounting), Option 3: K (Operation Manual, Calibration Certificate)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/ISE20-N-P-N7L-LA2K

AR30K-03B-D

Body Size: 30, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 03 (3/8), Options: B (w/Bracket), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/AR30K-03B-D

AR20K-01B-D

Body Size: 20, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 01 (1/8), Options: B (w/Bracket), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/AR20K-01B-D

AR20K-02B-D

Body Size: 20, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 02 (1/4), Options: B (w/Bracket), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/AR20K-02B-D

AR30K-F03B-D

Body Size: 30, Backflow: K (w/Backflow Function), Thread: F (G), Port Size: 03 (3/8), Options: B (w/Bracket), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/AR30K-F03B-D

AR20K-02B-1-D

Body Size: 20, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 02 (1/4), Options: B (w/Bracket), Set Pressure: 1 (0.02 to 0.2 MPa Setting), Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/AR20K-02B-1-D

AR20K-01BE-D

Body Size: 20, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 01 (1/8), Options: BE (B+E), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/AR20K-01BE-D

AR50K-N10B-Z-D

Body Size: 50, Backflow: K (w/Backflow Function), Thread: N (NPT), Port Size: 10 (1), Options: B (w/Bracket), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Units: Z (Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/AR50K-N10B-Z-D

AR40K-03B-D

Body Size: 40, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 03 (3/8), Options: B (w/Bracket), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/AR40K-03B-D

AR20K-02BE-D

Body Size: 20, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 02 (1/4), Options: BE (B+E), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/AR20K-02BE-D

AR20K-02BE-R-D

Body Size: 20, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 02 (1/4), Options: BE (B+E), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: R (Right to Left), Knob: Downward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/AR20K-02BE-R-D