Actuation: C (4-Position Dual 3 Port Valves, N.C./N.O.), Electrical Entry: TT (Terminal Type), Lead Wire Length: 6 (600mm, Maximum Length for L-type), Manual Override: D (Push-turn Locking Slotted Type), A,B Port: 01 (1/8), Thread Type: N (NPT)

Actuation: A (4-Position Dual 3 Port Valves, N.C./N.C.), Electrical Entry: TT (Terminal Type), Lead Wire Length: 100 (10000mm, Semi-standard), Manual Override: Non-locking Push Type, A,B Port: 01 (1/8), Thread Type: F (G)

Actuation: 4 (3-Position Exhaust Center), Electrical Entry: LL (L-type Plug Connector w/Cover), Lead Wire Length: 30 (3000mm), Manual Override: D (Push-turn Locking Slotted Type), A,B Port: 01 (1/8), Thread Type: Rc, Bracket: F2 (w/Side Bracket)

Stations: 01 (1 Station), Supply/Return Unit Layout: U (U Side: Open; D Side: Open), Thread Type: N (NPT), Supply Unit Components: Flow Adj. Valve: None; Stop Valve: None, Return Unit Flow Switch: 7 (Integrated Display), Return Unit Flow Range: 40 (5 to 40 L/min), Return Unit Components: W (w/Flow Adj.

Stations: 01 (1 Station), Piping: B (U Side: Open; D Side: Open), Thread Type: N (NPT), Flow Switch Type: 7 (Integrated Display), Rated Flow Range: 40 (5 to 40 L/min), Return Unit Components: Flow Adj.

Stations: 01 (1 Station), Piping: B (U Side: Open; D Side: Open), Thread Type: N (NPT), Flow Switch Type: 7 (Integrated Display), Rated Flow Range: 04 (0.5 to 4 L/min), Return Unit Components: S (w/Flow Adj.

Stations: 01 (1 Station), Piping: B (U Side: Open; D Side: Open), Thread Type: N (NPT), Flow Switch Type: 7 (Integrated Display), Rated Flow Range: 40 (5 to 40 L/min), Return Unit Components: S (w/Flow Adj.

Model: 31, Orifice: 2 (2.2mm), Style: 4 (COM, Single Unit), Option: A (C37, Seals: FKM, Class B), Suffix: Standard, Port Size: 01 (1/8), Thread: Rc, Voltage: 5 (24VDC), Electrical Entry: D (DIN Terminal), Surge Suppressor: S (w/Surge Voltage Suppressor), Rectifier: None (for DC or AC Class H Coil)

Model: 31, Orifice: 2 (2.2mm), Style: 4 (COM, Single Unit), Option: A (C37, Seals: FKM, Class B), Suffix: Standard, Port Size: 01 (1/8), 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)

Model: 31, Orifice: 2 (2.2mm), Style: 4 (COM, Single Unit), Option: A (C37, Seals: FKM, Class B), Suffix: Standard, Port Size: 01 (1/8), Thread: N (NPT), Voltage: 5 (24VDC), Electrical Entry: C (Conduit), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil), Bracket: B (Bracket)

Model: 31, Orifice: 2 (2.2mm), Style: 4 (COM, Single Unit), Option: B (C37, Seals: EPDM, Class B), Suffix: Standard, Port Size: 01 (1/8), 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)

Model: 31, Orifice: 2 (2.2mm), Style: 4 (COM, Single Unit), Option: B (C37, Seals: EPDM, Class B), Suffix: Standard, Port Size: 01 (1/8), Thread: N (NPT), Voltage: 5 (24VDC), Electrical Entry: G (Grommet), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil), Bracket: B (Bracket)

Model: 31, Orifice: 2 (2.2mm), Style: 4 (COM, Single Unit), Option: D (C37/CU, Seals: FKM, Class H), Suffix: Standard, Port Size: 01 (1/8), Thread: T (NPTF), Voltage: 3 (110VAC 50/60HZ), Electrical Entry: C (Conduit), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)

Model: 31, Orifice: 2 (2.2mm), Style: 4 (COM, Single Unit), Option: H (Stainless Steel, Seals: FKM, Class B), Suffix: Z (Oil-free), Port Size: 01 (1/8), Thread: N (NPT), Voltage: 5 (24VDC), Electrical Entry: G (Grommet), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil), Bracket: B (Bracket)

Model: 31, Orifice: 2 (2.2mm), Style: 4 (COM, Single Unit), Option: J (Stainless Steel, Seals: EPDM, Class B), Suffix: Standard, Port Size: 01 (1/8), Thread: N (NPT), Voltage: 5 (24VDC), Electrical Entry: D (DIN Terminal), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil), Bracket: B (Bracket)

Model: 31, Orifice: 2 (2.2mm), Style: 4 (COM, Single Unit), Option: J (Stainless Steel, Seals: EPDM, Class B), Suffix: Standard, Port Size: 01 (1/8), Thread: T (NPTF), Voltage: 5 (24VDC), Electrical Entry: D (DIN Terminal), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil), Bracket: B (Bracket)

Model: 31, Orifice: 2 (2.2mm), Style: 4 (COM, Single Unit), Option: V (C37, Seals: FKM, Class B, Oil-free), Suffix: Standard, Port Size: 01 (1/8), Thread: Rc, Voltage: 5 (24VDC), Electrical Entry: T (with Conduit Terminal), Surge Suppressor: Z (w/Light and Surge Voltage Suppressor), Rectifier: None (for DC or AC Class H Coil)

Model: 31, Orifice: 2 (2.2mm), Style: 4 (COM, Single Unit), Option: V (C37, Seals: FKM, Class B, Oil-free), Suffix: Standard, Port Size: 01 (1/8), Thread: N (NPT), Voltage: 6 (12VDC), Electrical Entry: G (Grommet), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)

Model: 31, Orifice: 2 (2.2mm), Style: 4 (COM, Single Unit), Option: C37, Seals: NBR, Class B, Suffix: Z (Oil-free), Port Size: 01 (1/8), Thread: Rc, Voltage: 5 (24VDC), Electrical Entry: D (DIN Terminal), Surge Suppressor: L (w/Light), Rectifier: None (for DC or AC Class H Coil), Bracket: B (Bracket)

Model: 31, Orifice: 3 (3mm), Style: 4 (COM, Single Unit), Option: C37, Seals: NBR, Class B, Suffix: Standard, Port Size: 01 (1/8), Thread: Rc, Voltage: 5 (24VDC), Electrical Entry: T (with Conduit Terminal), Surge Suppressor: Z (w/Light and Surge Voltage Suppressor), Rectifier: None (for DC or AC Class H Coil), Bracket: B (Bracket)