When replacing an old AR series regulator with the following conditions (A to E), select a regulator from the AR20-B to AR60-B series.
(A) The set pressure is 0.7 to 0.85 MPa. (B) A square embedded type pressure gauge or digital pressure gauge is required. (C) The same dimensions for panel mounting are required. (D) A regulator with a backflow function is required.

Refer to the AR-A/AR-B/AR-D series catalog excerpt, which has been reproduced below.
The part number of the standard AR20 to AR60 round type pressure gauge is “G36-10-01,” or “G46-10-01”(for the R thread type).
For example, the part number of the AR30-03BG-A pressure gauge is “G36-10-01.”

Refer to the AR-A/AR-B/AR-D series catalog excerpt, which has been reproduced below.
The part numbers of standard AR20 to AR60 round type pressure gauges are “G36-10-01” and “G46-10-01”(for the R thread type).
For example, the part number of the AR30-03BG-A pressure gauge is “G36-10-01.”

Special Applications: 10-AR (Clean Series), Body Size: 40, Reverse Flow: No, Thread: N (NPT), Port Size: 04 [1/2 (Size 40)], Accessory, Not Attached: B [Bracket (Size 20 to 60)], Option: NRYZ (N+R+Y+Z)

Special Applications: 10-AR (Clean Series), Body Size: 40, Reverse Flow: No, Thread: N (NPT), Port Size: 06 [3/4 (Size 40, 50)], Accessory, Not Attached: BG [B+G (Size 20 to 60)], Option: NRYZ (N+R+Y+Z)

Special Applications: 10-AR (Clean Series), Body Size: 40, Reverse Flow: No, Thread: N (NPT), Port Size: 04 [1/2 (Size 40)], Accessory, Not Attached: BG [B+G (Size 20 to 60)], Option: NRYZ (N+R+Y+Z)

Special Applications: 10-AR (Clean Series), Body Size: 40, Reverse Flow: No, Thread: N (NPT), Port Size: 06 [3/4 (Size 40, 50)], Accessory, Not Attached: B [Bracket (Size 20 to 60)], Option: NRYZ (N+R+Y+Z)

Body Size: 60, Backflow: w/o Backflow Function, Thread: N (NPT), Port Size: 10 (1), 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: Z (Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale)

Body Size: 60, Backflow: w/o Backflow Function, Thread: N (NPT), Port Size: 10 (1), Options: BG (B+G), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: N (Non-relieving Type), Flow Direction: Left to Right, Knob: Y (Upward), Pressure Units: Z (Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale)

Body Size: 60, Backflow: w/o Backflow Function, Thread: N (NPT), Port Size: 10 (1), 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: Z (Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale)

Body Size: 60, Backflow: w/o Backflow Function, Thread: N (NPT), Port Size: 10 (1), 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: Z (Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale)

Body Size: 60, Backflow: w/o Backflow Function, Thread: N (NPT), Port Size: 10 (1), Options: BG (B+G), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: N (Non-relieving Type), Flow Direction: Left to Right, Knob: Downward, Pressure Units: Z (Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale)

Body Size: 60, Backflow: w/o Backflow Function, Thread: N (NPT), Port Size: 10 (1), Options: BG (B+G), Set Pressure: 1 (0.02 to 0.2 MPa Setting), Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Y (Upward), Pressure Units: Z (Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale)

Regulator, Pressure Boosting Valve: -, Regulator Type: -, Shape: -, Operating Environment: -, Compatible Fluid: -, Exhaust Mechanism (Air Bleed): -, Reverse Flow Function (Relief): -, Supply Side Connection Type: -, Supply Side, Connection Diameter: -, Flow Direction: -, Control Side Connection Type: -, Control Side, Connection Diameter: -, Pressure Gauge: -, Size of Body: -, Accessory: -

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: [NPT] NPT, Supply Side, Connection Diameter: 1, Flow Direction: [Right] From Left to Right, Control Side Connection Type: [NPT] NPT

Regulator, Pressure Boosting Valve: Regulator, Regulator Type: Standard, Shape: Standard, Operating Environment: Standard, Compatible Fluid: Air, Exhaust Mechanism (Air Bleed): [Not Provided] Non-relief, Reverse Flow Function (Relief): No, Supply Side Connection Type: [NPT] NPT, Supply Side, Connection Diameter: 1, Flow Direction: [Right] From Left to Right, Control Side Connection Type:

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: [NPT] NPT, Supply Side, Connection Diameter: 1, Flow Direction: [Left] From Right to Left, Control Side Connection Type: [NPT] NPT

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: [NPT] NPT, Supply Side, Connection Diameter: 1, Flow Direction: [Right] From Left to Right, Control Side Connection Type: [NPT] NPT

Body Size: 60, Backflow: w/o Backflow Function, Thread: NPT, Port Size: 1, Options: B+G, Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: Non-relieving Type, Flow Direction: Left to Right, Knob: Upward, Pressure Units: Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale, Made to Order: -

Body Size: 60, Backflow: w/o Backflow Function, Thread: NPT, Port Size: 1, 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: psi, Pressure Gauge: MPa/psi Dual Scale, Made to Order: -