Size: 1, Reverse Flow Function: Standard, Thread: M Thread, Rc(PT), Port Size: 1, Accessory 1: B+D, Accessory 2: Round Pressure Gauge, Option 1: -, Option 2: -, Option 3: -

Size: 1, Reverse Flow Function: Standard, Thread: M Thread, Rc(PT), Port Size: 1, Accessory 1: B+C, Accessory 2: None, Option 1: Metal Bowl, Option 2: -, Option 3: -

Size: 1/2, Reverse Flow Function: Backflow Mechanism, Thread: G, Port Size: 1/2, Accessory 1: B+C, Accessory 2: Round Pressure Gauge, Option 1: -, Option 2: -, Option 3: -

Size: 1, Reverse Flow Function: Standard, Thread: M Thread, Rc(PT), Port Size: 1, Accessory 1: B+C, Accessory 2: Round Pressure Gauge, Option 1: -, Option 2: -, Option 3: -

Size: 1/2, Reverse Flow Function: Backflow Mechanism, Thread: G, Port Size: 1/2, Accessory 1: B+D, Accessory 2: Round Pressure Gauge, Option 1: -, Option 2: -, Option 3: -

Size: 1/2, Reverse Flow Function: Backflow Mechanism, Thread: G, Port Size: 1/2, Accessory 1: B+C, Accessory 2: None, Option 1: Metal Bowl, Option 2: -, Option 3: -

Ported P,A,B Ports 1), Thread: T (NPTF)

Model: 32, Orifice: 3 (3mm), Style: 0 (N.C., Single Unit), Option: B (C37, Seals: EPDM, Class B), Suffix: Standard, Port Size: 02 (1/4), Thread: T (NPTF), Voltage: 3 (110VAC 50/60HZ), Electrical Entry: D (DIN Terminal), Surge Suppressor: Non, Rectifier: R (AC Class B Coil w/Full-wave Rectifier), Bracket: B (Bracket)

Model: 32, Orifice: 4 (4mm), Style: 0 (N.C., Single Unit), Option: B (C37, Seals: EPDM, Class B), Suffix: Standard, Port Size: 02 (1/4), Thread: N (NPT), Voltage: 3 (110VAC 50/60HZ), Electrical Entry: D (DIN Terminal), Surge Suppressor: Non, Rectifier: R (AC Class B Coil w/Full-wave Rectifier), Bracket: B (Bracket)

Model: 31, Orifice: 3 (3mm), Style: 0 (N.C., Single Unit), Option: B (C37, Seals: EPDM, Class B), Suffix: Standard, Port Size: 01 (1/8), Thread: N (NPT), Voltage: 7 (240VAC 50/60HZ), Electrical Entry: D (DIN Terminal), Surge Suppressor: Non, Rectifier: R (AC Class B Coil w/Full-wave Rectifier), Bracket: B (Bracket)

Model: 31, Orifice: 3 (3mm), Style: 4 (COM, Single Unit), Option: B (C37, Seals: EPDM, Class B), Suffix: Standard, Port Size: 02 (1/4), Thread: N (NPT), Voltage: 3 (110VAC 50/60HZ), Electrical Entry: C (Conduit), Surge Suppressor: Non, Rectifier: R (AC Class B Coil w/Full-wave Rectifier), Bracket: B (Bracket)

Body Class: 3 (Orifice Dia. ø8), Valve Type: 0 (N.C.), Applicable Tubing Size: 07 (1/4"), Port B (OUT) Different Dia. Size: Ports A & B Same Size, Pilot Port Thread Type: 2 (M5X0.8), Pilot Port Position: None (Position 1), Material: Standard, Option: 2 (With By-Pass)

Body Class: 3 (Orifice Dia. ø8), Valve Type: 0 (N.C.), Applicable Tubing Size: 07 (1/4"), Port B (OUT) Different Dia. Size: Ports A & B Same Size, Pilot Port Thread Type: 2 (M5X0.8), Pilot Port Position: P3 (Position 3), Material: Standard, Option: 1 (With Flow Rate Adjustment)

Body Class: 2 (Orifice Dia. ø4), Valve Type: 0 (N.C.), Applicable Tubing Size: 06 (ø6mm), Port B (OUT) Different Dia. Size: Ports A & B Same Size, Pilot Port Thread Type: 2 (M5X0.8), Pilot Port Position: None (Position 1), Material: Standard, Option: 1 (With Flow Rate Adjustment)

Body Class: 4 (Orifice Dia. ø10), Valve Type: 0 (N.C.), Applicable Tubing Size: 11 (3/8"), Port B (OUT) Different Dia. Size: Ports A & B Same Size, Pilot Port Thread Type: 2 (M5X0.8), Pilot Port Position: None (Position 1), Material: Standard, Option: 1 (With Flow Rate Adjustment)

Body Class: 3 (Orifice Diameter ø8), Valve Type: 0 (Normally Closed), Applicable Tube OD: 07 (1/4), Port B OUT: Ports A & B Same Size, Pilot Port: N (Body Class 3, 4, 5, 6 - NPT 1/8"), Material: N (Body: PFA, Actuator Endplate: PPS, Diaphragm: PTFE)

Body Class: 4 (Orifice Diameter ø10), Valve Type: 0 (Normally Closed), Applicable Tube OD: 13 (1/2), Port B OUT: Ports A & B Same Size, Pilot Port: N (Body Class 3, 4, 5, 6 - NPT 1/8"), Material: F (Body: PFA, Actuator Endplate: PVDF, Diaphragm: PTFE-LVC40,50)

Size, Body, Valve Type: 12A (Size: 1; Body Mat'l: C37; Port Size: 1/8; Orifice Dia: 2, N.C.), Voltage and Electrical Entry: B (100VAC; Grommet w/Surge Voltage Suppressor), Other Voltages and Electrical Options: None, Other Options: B (NPT Thread), Bracket Interchangeable w/Old Type: XB (Yes)

Size, Body, Valve Type: 10D (Size: 1; Body Mat'l: Aluminum; Port Size 1/4; Orifice Dia: 2, N.C.), Voltage and Electrical Entry: B (100VAC; Grommet w/Surge Voltage Suppressor), Other Voltages and Electrical Options: None, Other Options: B (NPT Thread), Bracket Interchangeable with Old Type: XB

Size, Body, Valve Type: 10D (Size: 1; Body Mat'l: Aluminum; Port Size 1/4; Orifice Dia: 2, N.C.), Voltage and Electrical Entry: A (24VDC; Grommet), Other Voltages and Electrical Options: None, Other Options: B (NPT Thread), Bracket Interchangeable with Old Type: XB, Electrical Entry: B (180°)