Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: BG (B + G), Semi-Standard: 1NZ (1 + N + Z)

Body Size: 20, Back Flow: w/o Backflow, Thread: N (NPT), Port Size: 01 (1/8), Options: BC (B+C), Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: 2 (Metal Bowl), Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: N (Non-relieving), Flow Direction: Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure Gauge: psi (and MPa)]

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: G (For Sizes 20, 25, 30, 40: Round Pressure Gauge w/Limit Indicator; For Size 10 Round Pressure Gauge w/o Limit Indicator), Semi-Standard: NZ (N + Z)

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: C (N.C. Float Type Auto Drain), Attachment: STV (S + T + V), Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: NRZ (N + R + Z)

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: w/o Mounting Option, w/o Pressure Gauge, Semi-Standard: NRYZ (N + R + Y + Z)

Body Size: 20, Back Flow: w/o Backflow, Thread: N (NPT), Port Size: 01 (1/8), Options: BCE (B+C+E), Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: 2 (Metal Bowl), Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: N (Non-relieving), Flow Direction: Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure Gauge: psi (and MPa)

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: BG (B + G), Semi-Standard: 1NRYZ (1 + N + R + Y + Z)

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: BG (B + G), Semi-Standard: NYZ (N + Y + Z)

Body Size: 20, Backflow: K (w/Backflow Function), Thread: N (NPT), Port Size: 01 (1/8), Options: BE (B+E), Set Pressure: 1 (0.02 to 0.2 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: 20, Backflow: K (w/Backflow Function), Thread: N (NPT), Port Size: 01 (1/8), Options: E (Square Embedded Type Pressure Gauge, w/Limit Indicator), Set Pressure: 0.05 to 0.85 MPa Setting, Exhaust Mechanism: N (Non-relieving Type), Flow Direction: R (Right to Left), 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: N (NPT), Port Size: 01 (1/8), Options: E (Square Embedded Type Pressure Gauge, w/Limit Indicator), Set Pressure: 1 (0.02 to 0.2 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: 20, Backflow: w/o Backflow Function, Thread: N (NPT), Port Size: 01 (1/8), 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: 20, Backflow: K (w/Backflow Function), Thread: N (NPT), Port Size: 01 (1/8), Options: B (w/Bracket), Set Pressure: 1 (0.02 to 0.2 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: 20, Back Flow: w/o Backflow, Thread: N (NPT), Port Size: 01 (1/8), Options: w/o Mounting Option, Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: Polycarbonate Bowl, Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: N (Non-relieving), Flow Direction: Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure Gauge: psi

Body Size: 20, Back Flow: w/o Backflow, Thread: N (NPT), Port Size: 01 (1/8), Options: w/o Mounting Option, Set Pressure: 1 (0.02 to 0.2 MPa Setting), Bowl: Polycarbonate Bowl, Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: N (Non-relieving), Flow Direction: Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure Gauge

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: BCG (B + C + G), Semi-Standard 1: 12N (1 + 2 + N), Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)

Model: 51 (Bottom Ported), SI Unit Common Specs: N (Negative Common), Wiring Specification: All Double Wiring, Valve Stations: 8 Stations, P, E Port Location: D Side, A,B Port - Thread Piping: 01 (1/8), Thread: N (NPT)

Model: 50 (Side Ported), SI Unit Common Specs: N (Negative Common), Wiring Specification: All Double Wiring, Valve Stations: 5 Stations, P, E Port Location: B (Both Sides), A, B Port - Thread Piping: 01 (1/8), Thread: N (NPT)

Body Size: 20, Backflow: K (w/Backflow Function), Thread: N (NPT), Port Size: 01 (1/8), Options: w/o Mounting Option, 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: 20, Backflow: K (w/Backflow Function), Thread: N (NPT), Port Size: 01 (1/8), Options: E (Square Embedded Type Pressure Gauge, w/Limit Indicator), Set Pressure: 1 (0.02 to 0.2 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)