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.”

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: N (NPT), Port Size: 10 (1), 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: Z (Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale)

Special Applications: Clean Series, Body Size: 60, Reverse Flow: No, Thread: NPT, Port Size: 10 [1 (Size 50, 60)], Accessory, Not Attached: None, Option: N+Z

Special Applications: Clean Series, Body Size: 60, Reverse Flow: No, Thread: NPT, Port Size: 10 [1 (Size 50, 60)], Accessory, Not Attached: None, Option: 1+N+Y+Z

Special Applications: 10-AR (Clean Series), Body Size: 60, Reverse Flow: No, Thread: N (NPT), Port Size: 10 [1 (Size 50, 60)], Accessory, Not Attached: None, Option: 1NYZ (1+N+Y+Z)

Special Applications: 10-AR (Clean Series), Body Size: 60, Reverse Flow: No, Thread: N (NPT), Port Size: 10 [1 (Size 50, 60)], Accessory, Not Attached: None, Option: NZ (N+Z)

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

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

Body Size: 60, Backflow: w/o Backflow Function, Thread: NPT, Port Size: 1, Mounting: w/o Mounting Option, Set Pressure: 0.05 to 0.85 MPa, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Unit: Name Plate and Pressure Gauge in Imperial Units: psi

Body Size: 60, Backflow: w/o Backflow Function, Thread: NPT, Port Size: 1, 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: psi, Pressure Gauge: MPa/psi Dual Scale, Made to Order: 0.4 MPa Setting

Body Size: 60, Backflow: w/o Backflow Function, Thread: N (NPT), Port Size: 10 (1), Mounting: w/o Mounting Option, Set Pressure: 0.05 to 0.85 MPa, Exhaust Mechanism: Relieving Type, Flow Direction: Left to Right, Knob: Downward, Pressure Unit: Z (Name Plate and Pressure Gauge in Imperial Units: psi)

Body Size: 60, Backflow: w/o Backflow Function, Thread: N (NPT), Port Size: 10 (1), 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: Z (Unit on Product Label: psi, Pressure Gauge: MPa/psi Dual Scale), Made to Order: X406 (0.4 MPa Setting)

Size: 1, Reverse Flow: Regulator, Standard, Thread: NPT, Port Size: 1, Accessory: None, Option 1: None, Option 2: Name Plate & Pressure Gauge in Imperial Units, PSI, °F

This is a legacy product, and replaced byAL60-N10-Z-A, LUBRICATOR, AIRLINE EQUIPMENT, AL MASS PRO, HC, AL MASS PRO 1" MODULAR (NPT), 2.82191 lb

This is a legacy product, and replaced byAF50-N10-Z-A, FILTER, MODULAR, AIRLINE EQUIPMENT, AF MASS PRO, HC, AF MASS PRO 1" MODULAR (NPT), 2.09000 lb

This is a legacy product, and replaced byAF60-N10-Z-A

This is a legacy product, and replaced byAF60-N10-Z-A, FILTER, MODULAR, AIRLINE EQUIPMENT, AF MASS PRO, HC, AF MASS PRO 1" MODULAR (NPT), 2.64554 lb