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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 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
PDF Icon VN-OMP0002

2302) VNA (JIS B 6349) VNA 1 ISO VG32 VNA ( JIS K 6439) VNA VNA VNA VNA AS AS AS AS VNA AS 10A 111 420-03 3/8 B(9.5) 12 12 12 12(P1) (P1) (P1) (P1) 10(P2) 10(P2) 10(P2) 10(P2) 12(P1)10(P2) 15A 211 420-04 1/2 B(12.7) 20A 311 500-06 3/4 B(19.1) 25A 411 600-10 1 B(25.4) 2 32A 511 800-12 1 1/4 B(31.8) VNA01 VNA02 VNA03 VNA1 40A 611 900-14 1 1/2 B(38.1) (P1) () 12 50A 711 900-20 2 B

https://smccatalog.partbuilder.smcpneumatics.com/dl_catalogs/assets/manual/zh-cn/files/VN-OMP0002.pdf
25A-AR40K-04-R-B

Body Size: 40, Backflow: w/Backflow Function, Thread: Rc, Port Size: 1/2, Mounting: w/o Mounting Option, Set Pressure: 0.05 to 0.85 MPa, Exhaust Mechanism: Relieving Type, Flow Direction: Right to Left, Knob: Downward, Pressure Unit: Name Plate and Pressure Gauge in Imperial Units; MPa

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://inventory.partbuilder.smcpneumatics.com/vona2/detail/332000167543/?HissuCode=25A-AR40K-04-R-B
25A-AR40K-04-Y-B

Body Size: 40, Backflow: w/Backflow Function, Thread: Rc, Port Size: 1/2, Mounting: w/o Mounting Option, Set Pressure: 0.05 to 0.85 MPa, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Upward, Pressure Unit: Name Plate and Pressure Gauge in Imperial Units; MPa

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://inventory.partbuilder.smcpneumatics.com/vona2/detail/332000167543/?HissuCode=25A-AR40K-04-Y-B
25A-AR40K-04-Y-B

Body Size: 40, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 04 (1/2), Mounting: w/o Mounting Option, Set Pressure: 0.05 to 0.85 MPa, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Y (Upward), Pressure Unit: Name Plate and Pressure Gauge in Imperial Units; MPa

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/25A-AR40K-04-Y-B
25A-AR40K-04-R-B

Body Size: 40, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 04 (1/2), Mounting: w/o Mounting Option, Set Pressure: 0.05 to 0.85 MPa, Exhaust Mechanism: Relieving Type, Flow Direction: R (Right to Left), Knob: Downward, Pressure Unit: Name Plate and Pressure Gauge in Imperial Units; MPa

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/25A-AR40K-04-R-B
25A-PFMB7102-F04-BW-A

Series: 25A-PFMB7, Flow Rate Range: 102 (10 to 1000 L/min), Thread Type: F (G), Port Size: 04 (1/2), Out Specification: B (Out 1: PNP, Out 2: PNP), Lead Wire: W (Lead Wire w/Connector 2 m, Rubber Cover for Connector, Silicone Rubber), Unit Specifications: Unit Selection Function, Switches w/Unit Selection not Permitted for Use in Japan, Bracket: No Bracket, Calibration Certificate: A (w/Calibration

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/25A-PFMB7102-F04-BW-A
25A-PF3W704-03-B-MR

Series: 25A-PF3W7, Rated Flow Range: 04 (0.5 to 4 L/min), Flow Adjustment Valve: w/o Flow Adjustment Valve, Thread: Rc, Port Size: 03 (3/8), Output Specification/Temperature Sensor: B (Out 1: PNP; Out 2: Flow Rate: PNP; Temp.: None; Temperature Sensor: None), Lead Wire: w/Lead Wire and M8 Connector, 3 m, Unit Specification: M (Instantaneous Flow: L/min; Accumulated Flow: L; Temperature: Â

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/25A-PF3W704-03-B-MR
25A-PF3W740-04-B-M

Series: 25A-PF3W7, Rated Flow Range: 40 (5 to 40 L/min), Flow Adjustment Valve: w/o Flow Adjustment Valve, Thread: Rc, Port Size: 04 (1/2), Output Specification/Temperature Sensor: B (Out 1: PNP; Out 2: Flow Rate: PNP; Temp.: None; Temperature Sensor: None), Lead Wire: w/Lead Wire and M8 Connector, 3 m, Unit Specification: M (Instantaneous Flow: L/min; Accumulated Flow: L; Temperature: °

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/25A-PF3W740-04-B-M
25A-PFMB7501-04-BW-MR

Series: 25A-PFMB7, Flow Rate Range: 501 (5 to 500 L/min), Thread Type: Rc, Port Size: 04 (1/2), Out Specification: B (Out 1: PNP, Out 2: PNP), Lead Wire: W (Lead Wire w/Connector 2 m, Rubber Cover for Connector, Silicone Rubber), Unit Specifications: M (SI Unit Only), Bracket: R (w/Bracket)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/25A-PFMB7501-04-BW-MR
25A-AR40K-04-D

Body Size: 40, Back Flow: w/Backflow Function, Thread: Rc, Port Size: 1/2, Mounting: w/o Mounting Option, 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://inventory.partbuilder.smcpneumatics.com/vona2/detail/332000169063/?HissuCode=25A-AR40K-04-D
25A-AR40K-04-D

Body Size: 40, Back Flow: K (w/Backflow Function), Thread: Rc, Port Size: 04 (1/2), Mounting: w/o Mounting Option, 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/25A-AR40K-04-D
AR40K-04-B

Regulator, Pressure Boosting Valve: Regulator, Regulator Type: Standard, Shape: Standard, Operating Environment: Standard, Compatible Fluid: Air, Exhaust Mechanism (Air Bleed): [Included] Relief, Reverse Flow Function (Relief): [Included] Yes, Supply Side Connection Type: Rc, Supply Side, Connection Diameter: 1/2, Flow Direction: [Right] From Left to Right, Control Side Connection Type: Rc

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://inventory.partbuilder.smcpneumatics.com/vona2/detail/221006459458/?HissuCode=AR40K-04-B
AR40K-04-B

Body Size: 40, Backflow: K (w/Backflow Function), Thread: Rc, Port Size: 04 (1/2), Options: w/o Mounting Option, 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-04-B
25A-PF3W720-04-F-M

Series: 25A-PF3W7, Rated Flow Range: 20 (2 to 16 L/min), Flow Adjustment Valve: w/o Flow Adjustment Valve, Thread: Rc, Port Size: 04 (1/2), Output Specification/Temperature Sensor: F (Out 1: PNP; Out 2: Flow Rate: Analog 4 to 20 mA; Temp.: None; Temperature Sensor: None), Lead Wire: w/Lead Wire and M8 Connector, 3 m, Unit Specification: M (Instantaneous Flow: L/min; Accumulated Flow: L; Temperature

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/25A-PF3W720-04-F-M
25A-PFMB7501-04-CW-MR

Series: 25A-PFMB7, Flow Rate Range: 501 (5 to 500 L/min), Thread Type: Rc, Port Size: 04 (1/2), Out Specification: C (Out 1: NPN, Out 2: Analog 1 to 5 V), Lead Wire: W (Lead Wire w/Connector 2 m, Rubber Cover for Connector, Silicone Rubber), Unit Specifications: M (SI Unit Only), Bracket: R (w/Bracket)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/25A-PFMB7501-04-CW-MR
25A-PFMB7102-04-CW

Series: 25A-PFMB7, Flow Rate Range: 102 (10 to 1000 L/min), Thread Type: Rc, Port Size: 04 (1/2), Out Specification: C (Out 1: NPN, Out 2: Analog 1 to 5 V), Lead Wire: W (Lead Wire w/Connector 2 m, Rubber Cover for Connector, Silicone Rubber)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/25A-PFMB7102-04-CW
25A-PFMB7102-04-AW-R

Series: 25A-PFMB7, Flow Rate Range: 102 (10 to 1000 L/min), Thread Type: Rc, Port Size: 04 (1/2), Out Specification: A (Out 1: NPN, Out 2: NPN), Lead Wire: W (Lead Wire w/Connector 2 m, Rubber Cover for Connector, Silicone Rubber), Unit Specifications: Unit Selection Function, Switches w/Unit Selection not Permitted for Use in Japan, Bracket: R (w/Bracket)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/25A-PFMB7102-04-AW-R
25A-PFMB7102-N04-AW-MRA

Series: 25A-PFMB7, Flow Rate Range: 102 (10 to 1000 L/min), Thread Type: N (NPT), Port Size: 04 (1/2), Out Specification: A (Out 1: NPN, Out 2: NPN), Lead Wire: W (Lead Wire w/Connector 2 m, Rubber Cover for Connector, Silicone Rubber), Unit Specifications: M (SI Unit Only), Bracket: R (w/Bracket), Calibration Certificate: A (w/Calibration Certificate)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/25A-PFMB7102-N04-AW-MRA
25A-PFMB7102-04-CW-R

Series: 25A-PFMB7, Flow Rate Range: 102 (10 to 1000 L/min), Thread Type: Rc, Port Size: 04 (1/2), Out Specification: C (Out 1: NPN, Out 2: Analog 1 to 5 V), Lead Wire: W (Lead Wire w/Connector 2 m, Rubber Cover for Connector, Silicone Rubber), Unit Specifications: Unit Selection Function, Switches w/Unit Selection not Permitted for Use in Japan, Bracket: R (w/Bracket)

https://www.smcpneumatics.com/Part-Builder-Links_ep_2458-1.html?https://partbuilder.smcpneumatics.com/product-search-results/25A-PFMB7102-04-CW-R