Flow Rate Range: 501 (5 to 500 L/min), Thread Type: Rc, Port Size: 04 (1/2), Output Specifications: F (PNP; Analog 4 to 20 mA), Option 1: W (w/Lead Wire w/Connecter + Connector Cover), Unit Specifications: Unit Selection Function, Option 2: R (With Bracket), Calibration Certificate: A (With Calibration Certificate)

Flow Rate Range: 102 (10 to 1000 L/min), Thread Type: N (NPT), Port Size: 04 (1/2), Output Specifications: D (NPN; Analog 4 to 20 mA), Option 1: W (w/Lead Wire w/Connecter + Connector Cover), Unit Specifications: Unit Selection Function, Option 2: R (With Bracket), Calibration Certificate: A (With Calibration Certificate)

Flow Rate Range: 102 (10 to 1000 L/min), Thread Type: F (G), Port Size: 04 (1/2), Output Specifications: C (NPN; Analog 1 to 5 V), Option 1: W (w/Lead Wire w/Connecter + Connector Cover), Unit Specifications: Unit Selection Function, Option 2: R (With Bracket), Calibration Certificate: A (With Calibration Certificate)

For the AV2000-A: 1
For the AV3000-A: 4
For the AV4000-A: 7
For the AV5000-A: 10

Series AV is a soft start up valve for low-speed air supply to gradually raise initial pressure in an air system and for quick exhaust by cutting off air supply.

Size: 40, Backflow Function: K (Backflow Function), Thread: N (NPT), Port Size: 04 (1/2), Accessory: E1 (NPN Output, Electrical Entry: Wiring Bottom Entry), Specifications: R (Flow Direction: Right to Left), Pressure Unit: Z (Name plate & Pressure Gauge in Imperial Units: psi)

Style: Pressure Switch with Piping Adapter, Body Size: 40 (AC40), Thread Type: N (NPT), Port Size: 04 (1/2), Set Pressure Range: 6 (0.1 to 0.6 MPa), Lead Wire Length: L (3m), Pressure Unit of the Scale Plate: MPa, Mounting: R (Left)

Style: Pressure Switch with Piping Adapter, Body Size: 40 (AC40), Thread Type: F (G), Port Size: 04 (1/2), Set Pressure Range: 6 (0.1 to 0.6 MPa), Lead Wire Length: L (3m), Pressure Unit of the Scale Plate: MPa, Mounting: R (Left)

Size: 4 (40), Valve Type: 1 (Normally Closed), Body Material: C (Brass), Seal Material: N (NBR), Port Size: 04 (Thread; 1/2), Thread Type: R (Rc), Rated Voltage: 5 (24 VDC), Electrical Entry: DZ (DIN Terminal w/Light, w/Surge Voltage Suppressor)

Size: 4 (40), Valve Type: 1 (Normally Closed), Body Material: C (Brass), Seal Material: F (FKM), Port Size: 04 (Thread; 1/2), Thread Type: R (Rc), Rated Voltage: 5 (24 VDC), Electrical Entry: DZ (DIN Terminal w/Light, w/Surge Voltage Suppressor)

Size: 4 (40), Valve Type: 1 (Normally Closed), Body Material: S (Stainless Steel), Seal Material: N (NBR), Port Size: 04 (Thread; 1/2), Thread Type: R (Rc), Rated Voltage: 5 (24 VDC), Electrical Entry: GS (Grommet with PCB, w/ Surge Voltage Suppressor)

Size: 4 (40), Valve Type: 1 (Normally Closed), Body Material: C (Brass), Seal Material: E (EPDM), Port Size: 04 (Thread; 1/2), Thread Type: R (Rc), Rated Voltage: 5 (24 VDC), Electrical Entry: DZ (DIN Terminal w/Light, w/Surge Voltage Suppressor)

Size: 4 (40), Valve Type: 1 (Normally Closed), Body Material: S (Stainless Steel), Seal Material: N (NBR), Port Size: 04 (Thread; 1/2), Thread Type: R (Rc), Rated Voltage: 1 (100 VAC), Electrical Entry: DZ (DIN Terminal w/Light, w/Surge Voltage Suppressor)

Body Size: 40, Thread: N (NPT), Port Size: 04 (1/2), Mounting: w/o Mounting Option, Bowl: Polycarbonate Bowl, Lubricant Exhaust Port: w/o Drain Cock, Flow Direction: R (Right to Left), Pressure Unit: Z ( Pressure Unit: psi; Temp Unit: °F

Body Size: 40, Thread: N (NPT), Port Size: 04 (1/2), Mounting: w/o Mounting Option, Bowl: 2 (Metal Bowl), Lubricant Exhaust Port: w/o Drain Cock, Flow Direction: R (Right to Left), Pressure Unit: Z ( Pressure Unit: psi; Temp Unit: °F

Body Size: 40, Thread: N (NPT), Port Size: 04 (1/2), Mounting: w/o Mounting Option, Bowl: Polycarbonate Bowl, Lubricant Exhaust Port: 3 (w/Drain Cock), Flow Direction: R (Right to Left), Pressure Unit: Z ( Pressure Unit: psi; Temp Unit: °F

Special Applications: 10-AR (Clean Series), Body Size: 40, Reverse Flow: No, Thread: F (G), Port Size: 04 [1/2 (Size 40)], Accessory, Not Attached: H [Set Nut for Panel Mount (Size 20 to 40)], Option: R (Right to Left Flow Direction)

Body Size: 3, Set Pressure: 2 (1.5 to 116 psi [0.01 to 0.8 MPa]), Exhaust Direction: 0 (Bottom Exhaust), Thread: Rc, Port Size: 04 (1/2), Option: BG (w/Bracket + Round Type Pressure Gauge), Semi-standard: R (Flow Direction: Right to Left)

Body Size: 3, Set Pressure: 1 (1.5 to 58 psi [0.01 to 0.4 MPa]), Exhaust Direction: 1 (Front Exhaust), Thread: Rc, Port Size: 04 (1/2), Option: BG (w/Bracket + Round Type Pressure Gauge), Semi-standard: R (Flow Direction: Right to Left)

Body Size: 3, Set Pressure: 2 (1.5 to 116 psi [0.01 to 0.8 MPa]), Exhaust Direction: 0 (Bottom Exhaust), Thread: Rc, Port Size: 04 (1/2), Option: BEB (w/Bracket + PNP Open Collector, 1 Output), Semi-standard: R (Flow Direction: Right to Left)