The refreshed AR series with 2 digits and an “A” suffix (AR40-□□-A) was released in April 2012. The refreshed AR series with 2 digits and a “B” suffix (AR40-□□-B) was released in May 2012. And the new design AR series with 2 digits and a “D” suffix (AR40-□□-D) was released in October 2019.

AR10-A: Rc1/16
AR20-A to AR40-A, AR20(K)-B to AR60(K)-B, and AR20(K)-D to AR40(K)-D: Rc1/8
Old AR10: Rc1/16
Old AR20(K) to AR30(K): Rc1/8
Old AR40(K) to AR60(K): Rc1/4
Old AR1000: Rc1/16
Old AR2000 to AR3000: Rc1/8
Old AR4000 to AR6000: Rc1/4

Size: 1/2, Reverse Flow: Regulator, Standard, Thread: G, Port Size: 1/2, Accessory: B+G, Option 1: None, Option 2: Flow Direction: Right->Left

Size: 1/2, Reverse Flow: Regulator, Standard, Thread: G, Port Size: 1/2, Accessory: B+G, Option 1: Non-relieving, Option 2: -

Body Size: 40, Thread: F (G), Port Size: 04 (1/2), Option: BG (B + G), Semi-Standard: Standard

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): No, Supply Side Connection Type: G, Supply Side, Connection Diameter: 1/2, Flow Direction: [Right] From Left to Right, Control Side Connection Type: G, Control Side

Body Size: 40, Backflow: w/o Backflow Function, Thread: F (G), Port Size: 04 (1/2), Options: BG (B+G), 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

Features and the main differences/similarities of the refreshed AR10-A to AR40-A and AR20-B to AR60-B series are described below.

The features of AR-A series regulators are as follows. ① The flow rate characteristics (reduced pressure drop) have been improved. ② The product has been whitened. ③ A backflow function has been added.

Body Size: 40, Backflow: w/o Backflow Function, Thread: F (G), Port Size: 04 (1/2), Options: BG (B+G), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: R (Right to Left), Knob: Y (Upward), Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Body Size: 40, Backflow: w/o Backflow Function, Thread: F (G), Port Size: 04 (1/2), Options: BG (B+G), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Y (Upward), Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Body Size: 40, Backflow: w/o Backflow Function, Thread: G, Port Size: 1/2, Options: B+G, Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: Right to Left, Knob: Upward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Body Size: 40, Backflow: w/o Backflow Function, Thread: G, Port Size: 1/2, Options: B+G, Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Upward, Pressure Units: Unit on Product Label: MPa, Pressure Gauge in SI Units: MPa

Body Size: 40, Thread: G, Port Size: 1/2, Option: B + G, Semi-Standard: Non-Relieving Exhaust Mechanism

Body Size: 40, Thread: G, Port Size: 1/2, Option: B + G, Semi-Standard: Flow Direction: Right to Left

Body Size: 40, Thread: F (G), Port Size: 04 (1/2), Option: BG (B + G), Semi-Standard: N (Non-Relieving Exhaust Mechanism)

Body Size: 40, Thread: F (G), Port Size: 04 (1/2), Option: BG (B + G), Semi-Standard: R (Flow Direction: Right to Left)

Body Size: 40, Thread: F (G), Port Size: 04 (1/2), Option: BG (B + G), Semi-Standard: Y (Knob, Upward)

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): No, Supply Side Connection Type: G, Supply Side, Connection Diameter: 1/2, Flow Direction: [Right] From Left to Right, Control Side Connection Type: G, Control Side

Body Size: 40, Backflow: w/o Backflow Function, Thread: F (G), Port Size: 04 (1/2), Options: BG (B+G), 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

Body Size: 40, Backflow: w/o Backflow Function, Thread: F (G), Port Size: 04 (1/2), Options: BG (B+G), 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