Model: 31, Orifice: 1 (1.5mm), Style: 2 (N.O., Single Unit), Option: C37, Seals: NBR, Class B, Suffix: Z (Oil-free), Port Size: 02 (1/4), Thread: Rc, Voltage: 5 (24VDC), Electrical Entry: G (Grommet), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)
Model: 31, Orifice: 1 (1.5mm), Style: 0 (N.C., Single Unit), Option: G (Stainless Steel, Seals: NBR, Class B), Suffix: Standard, Port Size: 02 (1/4), Thread: Rc, Voltage: 5 (24VDC), Electrical Entry: D (DIN Terminal), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)
Model: 21, Orifice Size: 1 (2mm), Configuration: 0 (N.C./Single Unit), Solenoid Valve Option: A (Brass Body, FKM Seal, Class B), Suffix: Standard, Port Size: 02 (1/4), Thread Type: N (NPT), Voltage: 5 (24VDC), Electrical Entry: GS (Grommet and Surge Voltage Suppressor), Full-wave Rectifier: None
Model: 21, Orifice Diameter: 1 (2 mm), Valve/Body Configuration: 0 (N.C./Single Unit), Solenoid Valve Option: Brass Body (Aluminum for Air Type), NBR Seal, Class B, Suffix: Standard, Port Size: 02 (1/4), Thread Type: N (NPT), Voltage: 6 (12VDC), Lead Wire: D (DIN Connector)
Model: 21, Orifice Diameter: 1 (2 mm), Valve/Body Configuration: 0 (N.C./Single Unit), Solenoid Valve Option: Brass Body (Aluminum for Air Type), NBR Seal, Class B, Suffix: Standard, Port Size: 02 (1/4), Thread Type: T (NPTF), Voltage: 6 (12VDC), Lead Wire: D (DIN Connector)
Solenoid: No.1 Solenoid, Body Option: 3 (10A), Style: 0 (Energized Open/N.C.), Option: C (Brass or BC6, Copper Body & Shading Coil, PTFE Seal, Class B Coil), Port Size: 02 [1/4 (10A)], Thread: N (NPT), Voltage: 3 (110VAC 50/60HZ), Lead Wire: D (DIN Connector)
Body Size: 250C [26SCFM (750l/Min)], Thread: Rc, Port Size: 02 (1/4), Accessory: B (Bracket), Auto Drain: Drain Cock w/o Auto Drain, Rubber Material: Standard, Air Pressure: Standard, Drain Guide: J (Drain Guide 1/4 Female Threaded), IN-OUT Direction: R (IN-OUT Reversal Direction)
Body Size: 30, Thread: N (NPT), Port Size: 02 (1/4), Option: B (Assembly of a Bracket and Set Nuts), Semi-Standard 1: Standard, Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)
Body Size: 20, Thread: N (NPT), Port Size: 02 (1/4), Option: B (Assembly of a Bracket and Set Nuts), Semi-Standard 1: Standard, Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)
Body Size: 40, Thread: N (NPT), Port Size: 02 (1/4), Option: B (Assembly of a Bracket and Set Nuts), Semi-Standard 1: Standard, Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)
Body Size: 20, Thread: N (NPT), Port Size: 02 (1/4), Option: BC (B + C), Semi-Standard 1: 6C (w/Bowl Guard, Nylon Bowl), Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)
Body Size: 20, Thread: N (NPT), Port Size: 02 (1/4), Option: BM (B + M), Semi-Standard 1: 6C (w/Bowl Guard, Nylon Bowl), Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)
Body Size: 30, Thread: Rc: Size 20, 25, 30, 40; M5: Size 10, Port Size: 02 (1/4), Option: B (Assembly of a Bracket and Set Nuts), Semi-Standard 1: Standard, Semi-Standard 2: W (Drain Cock w/Barb Fitting for ø6 x ø4 Nylon Tube)
Body Size: 30, Thread: N (NPT), Port Size: 02 (1/4), Option: BC (B + C), Semi-Standard 1: 8 (Metal Bowl w/Level Gauge), Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)
Body Size: 30, Thread: N (NPT), Port Size: 02 (1/4), Option: BCG (B + C + G), Semi-Standard 1: N (Non-Relieving Exhaust Mechanism), Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)
Body Size: 30, Thread: N (NPT), Port Size: 02 (1/4), Option: BD (B + D), Semi-Standard 1: 8 (Metal Bowl w/Level Gauge), Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)
Body Size: 30, Thread: N (NPT), Port Size: 02 (1/4), Option: BDG (B + D + G), Semi-Standard 1: 8 (Metal Bowl w/Level Gauge), Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)
Body Size: 30, Thread: N (NPT), Port Size: 02 (1/4), Option: BDG (B + D + G), Semi-Standard 1: N (Non-Relieving Exhaust Mechanism), Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)
Body Size: 40, Thread: N (NPT), Port Size: 02 (1/4), Option: BC (B + C), Semi-Standard 1: 8 (Metal Bowl w/Level Gauge), Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)
Body Size: 40, Thread: N (NPT), Port Size: 02 (1/4), Option: BG (B + G), Semi-Standard 1: 8 (Metal Bowl w/Level Gauge), Semi-Standard 2: Z (NPT Porting requires Z, Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)