Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 01 (1/8), Accessory: BE1 (B+E1), Specifications: 0.005 to 0.4MPa Setting, Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 01 (1/8), Accessory: BE1 (B+E1), Specifications: 3 (0.008 to 0.6 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 01 (1/8), Accessory: BE1 (B+E1), Specifications: 1Y (1 + Y), Pressure Unit: ZA (Digital Pressure Switch: w/Unit Coversion Function)

Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 01 (1/8), Accessory: BE1 (B+E1), Specifications: 3 (0.008 to 0.6 MPa Setting), Pressure Unit: ZA (Digital Pressure Switch: w/Unit Coversion Function)

Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 01 (1/8), Accessory: BE1 (B+E1), Specifications: 1Y (1 + Y), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: None, Thread: NPT, Port Size: 1/8, Accessory: B+E1, Specifications: 0.005 to 0.4MPa Setting, Pressure Unit: Digital Pressure Switch: w/Unit Coversion Function

Size: 20, Backflow Function: None, Thread: NPT, Port Size: 1/8, Accessory: B+E1, Specifications: 3 + R, Pressure Unit: Digital Pressure Switch: w/Unit Coversion Function

Size: 20, Backflow Function: None, Thread: NPT, Port Size: 1/8, Accessory: B+E1, Specifications: 3 + R, Pressure Unit: Name plate & Pressure Gauge in Imperial Units: psi

Size: 20, Backflow Function: None, Thread: NPT, Port Size: 1/8, Accessory: B+E1, Specifications: 0.005 to 0.4MPa Setting, Pressure Unit: Name plate & Pressure Gauge in Imperial Units: psi

Size: 20, Backflow Function: None, Thread: NPT, Port Size: 1/8, Accessory: B+E1, Specifications: 1 + Y, Pressure Unit: Digital Pressure Switch: w/Unit Coversion Function

Size: 20, Backflow Function: None, Thread: NPT, Port Size: 1/8, Accessory: B+E1, Specifications: 1 + Y, Pressure Unit: Name plate & Pressure Gauge in Imperial Units: psi

Regulator, Pressure Boosting Valve: Regulator, Regulator Type: Precision Control, Shape: Standard, Operating Environment: Standard, Compatible Fluid: Air, Exhaust Mechanism (Air Bleed): [Included] Bleed, Reverse Flow Function (Relief): No, Supply Side Connection Type: [NPT] NPT, Supply Side, Connection Diameter: 1/8, Flow Direction: [Right] From Left to Right, Control Side Connection Type

Regulator, Pressure Boosting Valve: Regulator, Regulator Type: Precision Control, Shape: Standard, Operating Environment: Standard, Compatible Fluid: Air, Exhaust Mechanism (Air Bleed): [Included] Bleed, Reverse Flow Function (Relief): No, Supply Side Connection Type: [NPT] NPT, Supply Side, Connection Diameter: 1/8, Flow Direction: [Right] From Left to Right, Control Side Connection Type

Size: 1/8, Reverse Flow: Regulator, Standard, Thread: NPT, Port Size: 1/8, Accessory: B+E1, Option 1: 0.02~0.2MPa Setting, Option 2: Name Plate & Pressure Gauge in Imperial Units, PSI, °F

The ARP20/30/40 series is available with a back flow function that exhausts the air pressure in the outlet side reliably and quickly. 

Body Size: 20, Backflow: w/o Backflow Function, Thread: N (NPT), Port Size: 01 (1/8), Options: BE1 (B+E1), Set Pressure: 1 (0.02 to 0.2 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: 20, Backflow: w/o Backflow Function, Thread: NPT, Port Size: 1/8, Options: B+E1, Set Pressure: 0.02 to 0.2 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: -

Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 01 (1/8), Accessory: None, Specifications: 1 (0.005 to 0.2 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 01 (1/8), Accessory: BE3 (B+E3), Specifications: 1 (0.005 to 0.2 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Size: 20, Backflow Function: None, Thread: N (NPT), Port Size: 01 (1/8), Accessory: E (Square Embedded Pressure Gauge w/Limit Indicator), Specifications: 1 (0.005 to 0.2 MPa Setting), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)