Model: 31, Orifice: 3 (3mm), Style: 2 (N.O., Single Unit), Option: H (Stainless Steel, Seals: FKM, Class B), Suffix: Standard, Port Size: 02 (1/4), Thread: N (NPT), Voltage: 1 (100VAC 50/60HZ), Electrical Entry: C (Conduit), Surge Suppressor: Non, Rectifier: R (AC Class B Coil w/Full-wave Rectifier)
Model: 33, Orifice: 3 (3mm), Style: 2 (N.O., Single Unit), Option: H (Stainless Steel, Seals: FKM, Class B), Suffix: Standard, Port Size: 02 (1/4), Thread: N (NPT), Voltage: 8 (48VAC 50/60HZ), Electrical Entry: C (Conduit), Surge Suppressor: Non, Rectifier: R (AC Class B Coil w/Full-wave Rectifier)
Body Size: 20, Thread: N (NPT), Port: 02 (1/4), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: V (Residual Pressure Relief 3 Port Valve), Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)
Body Size: 20, Thread: N (NPT), Port: 02 (1/4), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: V (Residual Pressure Relief 3 Port Valve), Semi-Standard 1: 1C (1 + C), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)
Body Size: 20, Thread: N (NPT), Port: 02 (1/4), Option: E3 (Output: PNP output / Electrical entry: Wiring bottom entry), Attachment: V1 (Residual Pressure Relief 3 Port Valve), Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)
Body Size: 20, Thread: N (NPT), Port: 02 (1/4), Option: E4 (Output: PNP output / Electrical entry: Wiring top entry), Attachment: V1 (Residual Pressure Relief 3 Port Valve), Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)
Body Size: 20, Thread: N (NPT), Port: 02 (1/4), Option: E3 (Output: PNP output / Electrical entry: Wiring bottom entry), Attachment: V (Residual Pressure Relief 3 Port Valve), Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)
Body Size: 20, Thread: N (NPT), Port: 02 (1/4), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: V1 (Residual Pressure Relief 3 Port Valve), Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)
Body Size: 20, Thread: N (NPT), Port: 02 (1/4), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: V1 (Residual Pressure Relief 3 Port Valve), Semi-Standard 1: 1C (1 + C), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)
Body Size: 20, Thread: N (NPT), Port: 02 (1/4), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: V (Residual Pressure Relief 3 Port Valve), Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)
Body Size: 20, Thread: N (NPT), Port: 02 (1/4), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: V (Residual Pressure Relief 3 Port Valve), Semi-Standard 1: 1C (1 + C), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)
Body Size: 20, Thread: N (NPT), Port: 02 (1/4), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: V1 (Residual Pressure Relief 3 Port Valve), Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, and Pressure Gauge: psi, °F)
Body Size: 20, Thread: N (NPT), Port Size: 02 (1/4), Option: Standard, Attachment: V1 (3-Port Valve for Residual Pressure Release; Mounting: V+AF+AR), Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: 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: Standard, Attachment: V (3-Port Valve for Residual Pressure Release; Mounting: AF+AR+V), Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: 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: Standard, Attachment: V (3-Port Valve for Residual Pressure Release; Mounting: AF+AR+V), Semi-Standard 1: CJ (C + J), Semi-Standard 2: 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: CG (C + G), Attachment: V1 (3-Port Valve for Residual Pressure Release; Mounting: V+AF+AR), Semi-Standard 1: Standard, Semi-Standard 2: 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: CM (C + M), Attachment: V1 (3-Port Valve for Residual Pressure Release; Mounting: V+AF+AR), Semi-Standard 1: Standard, Semi-Standard 2: 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: G (Size 20 25, 30, 40: Round Type Pressure Gauge w/Limit Indicator; Size 10: Round Type Pressure Gauge w/o Limit Indicator), Attachment: Standard, Semi-Standard 1: C (Bowl Guard), Semi-Standard 2: NRZ (N + R + Z)
Body Size: 20, Thread: N (NPT), Port Size: 02 (1/4), Option: CM (C + M), Attachment: V (3-Port Valve for Residual Pressure Release; Mounting: AF+AR+V), Semi-Standard 1: Standard, Semi-Standard 2: 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: CG (C + G), Attachment: V (3-Port Valve for Residual Pressure Release; Mounting: AF+AR+V), Semi-Standard 1: Standard, Semi-Standard 2: Z (Name Plate, Caution Plate for Bowl, & Pressure Gauge in Imperial Units: psi, °F)