Size: 40 (1/2), Reverse Flow Function: K (Regulator w/Backflow Mechanism), Thread: N (NPT), Port Size: 02 (1/4), Accessory 1: None, Pressure Gauge Angle: G1 (0°), Accessory 2: None, Option: Z (Name Plate & Gauge w/PSI), B: B

Size: 40 (1/2), Reverse Flow Function: Regulator, Standard, Thread: N (NPT), Port Size: 02 (1/4), Accessory 1: B (Bracket), Pressure Gauge Angle: G2 (90°), Accessory 2: None, Option: NZ (Non-relieving+ Name Plate & Gauge w/PSI), B: B

Size: 40 (1/2), Reverse Flow Function: Regulator, Standard, Thread: N (NPT), Port Size: 02 (1/4), Accessory 1: B (Bracket), Pressure Gauge Angle: G4 (270°), Accessory 2: None, Option: NZ (Non-relieving+ Name Plate & Gauge w/PSI), B: B

Size: 40 (1/2), Reverse Flow Function: Regulator, Standard, Thread: N (NPT), Port Size: 02 (1/4), Accessory 1: None, Pressure Gauge Angle: G1 (0°), Accessory 2: H (Set Nut), Option: 1Z (0.02~0.2MPa Setting+NamePlate & Gauge w/PSI), B: B

AS: AS, Body Size: 2 (1/8, 1/4 Basis), Style: 2 (Elbow), Control Method: 0 (Meter-out), Thread: Metric Thread (M5)/R(PT), Port Size: 02 (1/4), Applicable Tube OD: Ø8, Option: S (Sealant), Lock Nut: J (Round)

AS: AS, Body Size: 2 (1/8, 1/4 Basis), Style: 2 (Elbow), Control Method: 0 (Meter-out), Thread: Metric Thread (M5)/R(PT), Port Size: 02 (1/4), Applicable Tube OD: Ø10, Option: S (Sealant), Lock Nut: J (Round)

AS: AS, Body Size: 2 (1/8, 1/4 Basis), Style: 2 (Elbow), Control Method: 0 (Meter-out), Thread: Metric Thread (M5)/R(PT), Port Size: 02 (1/4), Applicable Tube OD: Ø6, Option: S (Sealant), Lock Nut: J (Round)

Series: 3 (VQZ3000), Configuration: 2 (2 Position Double), Seal Type: 1 (Rubber Seal), Function: Standard (0.35W DC, AC), Coil Voltage: 5 (24VDC), Lead Wire: Y (DIN Terminal), Manual Override: B (Locking Slotted Style), IP65 Compliant: No, Port Size: 02 (Rc1/4)

Series: 3 (VQZ3000), Configuration: 2 (2 Position Double), Seal Type: 1 (Rubber Seal), Function: Standard (0.35W DC, AC), Coil Voltage: 5 (24VDC), Lead Wire: Y (DIN Terminal), Manual Override: Non-locking Push Style, IP65 Compliant: No, Port Size: 02 (Rc1/4)

Series: 3 (VQZ3000), Configuration: 2 (2 Position Double), Seal Type: 0 (Metal Seal), Function: Standard (0.35W DC, AC), Coil Voltage: 5 (24VDC), Lead Wire: Y (DIN Terminal), Manual Override: Non-locking Push Style, IP65 Compliant: No, Port Size: 02 (Rc1/4)

Actuation: 2 (2 Position Double), Seal: 0 (Metal Seal), Function: Standard (0.4W DC, AC), Coil Voltage: 5 (24VDC), Light & Surge Suppressor: Yes, Manual Override: Non-locking Push Style (Tool Required), Enclosure: Dust Protected, Sub-plate: 02 (1/4 Port Size)

Actuation: 2 (2 Position Double), Seal: 1 (Rubber Seal), Function: Standard (0.4W DC, AC), Coil Voltage: 5 (24VDC), Light & Surge Suppressor: Yes, Manual Override: Non-locking Push Style (Tool Required), Enclosure: Dust Protected, Sub-plate: 02 (1/4 Port Size)

Actuation: 2 (2 Position Double), Seal: 1 (Rubber Seal), Function: N (Negative Common, DC), Coil Voltage: 5 (24VDC), Light & Surge Suppressor: Yes, Manual Override: Non-locking Push Style (Tool Required), Enclosure: Dust Protected, Sub-plate: 02 (1/4 Port Size)

Actuation: 2 (2 Position Double), Seal: 1 (Rubber Seal), Function: Standard (0.4W DC, AC), Coil Voltage: 5 (24VDC), Light & Surge Suppressor: Yes, Manual Override: B (Locking, Tool Required), Enclosure: Dust Protected, Sub-plate: 02 (1/4 Port Size), Thread: N (NPT)

Actuation: 2 (2 Position Double), Seal: 1 (Rubber Seal), Function: Standard (0.4W DC, AC), Coil Voltage: 6 (12VDC), Light & Surge Suppressor: Yes, Manual Override: Non-locking Push Style (Tool Required), Enclosure: Dust Protected, Sub-plate: 02 (1/4 Port Size)

Actuation: 2 (2 Position Double), Seal: 0 (Metal Seal), Function: Standard (0.4W DC, AC), Coil Voltage: 5 (24VDC), Light & Surge Suppressor: E (None), Manual Override: Non-locking Push Style (Tool Required), Enclosure: Dust Protected, Sub-plate: 02 (1/4 Port Size)

Actuation: 2 (2 Position Double), Seal: 0 (Metal Seal), Function: N (Negative Common, DC), Coil Voltage: 5 (24VDC), Light & Surge Suppressor: Yes, Manual Override: Non-locking Push Style (Tool Required), Enclosure: Dust Protected, Sub-plate: 02 (1/4 Port Size)

Model: 50 (Side Ported), Connector Type: F (D-sub Connector, 25 Pins), Connector Entry Direction: 2 (Lateral), Wiring Specification: All Double Wiring, Valve Stations: 2 Stations, P, E Port Location: D (D Side), A, B Port Size: 02 (1/4)

Model: 51 (Bottom Ported), Connector Type: F (D-sub Connector, 25 Pins), Connector Entry Direction: 2 (Lateral), Wiring Specification: All Double Wiring, Valve Stations: 2 Stations, P, E Port Location: D (D Side), A, B Port Size: 02 (1/4)

Body Size: 20, Thread: N (NPT), Port: 02 (1/4), Option: CE (C + E), Attachment: K (Check Valve), Semi-Standard 1: 2 (Metal Bowl), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)