Size: 4 (40), Valve Type: 1 (Normally Closed), Body Material: C (Brass), Seal Material: N (NBR), Port Size: 04 (Thread; 1/2), Thread Type: N (NPT), Rated Voltage: 6 (12 VDC), Electrical Entry: GS (Grommet with PCB, w/ Surge Voltage Suppressor)

Size: 3 (30), Valve Type: 1 (Normally Closed), Body Material: S (Stainless Steel), Seal Material: N (NBR), Port Size: 04 (Thread; 1/2), Thread Type: N (NPT), Rated Voltage: 3 [120 (110) VAC], Electrical Entry: CS (Conduit, w/Surge Voltage Suppressor)

Rated Flow Range: 102 (10 to 1000 L/min), Thread Type: N (NPT), Port Size: 04 (1/2), Output Specifications: E (Out 1: PNP; Out 2: Analog 1 to 5 V), Option 1: N (w/o Lead Wire and M8 Connector)

Rated Flow Range: 501 (5 to 500 L/min), Thread Type: N (NPT), Port Size: 04 (1/2), Output Specifications: D (Out 1: NPN; Out 2: Analog 4 to 20 mA), Option 1: N (w/o Lead Wire and M8 Connector)

Rated Flow Range: 102 (10 to 1000 L/min), Thread Type: N (NPT), Port Size: 04 (1/2), Output Specifications: F (Out 1: PNP; Out 2: Analog 4 to 20 mA), Option 1: N (w/o Lead Wire and M8 Connector)

Rated Flow Range: 501 (5 to 500 L/min), Thread Type: N (NPT), Port Size: 04 (1/2), Output Specifications: F (Out 1: PNP; Out 2: Analog 4 to 20 mA), Option 1: N (w/o Lead Wire and M8 Connector)

Body Size: 40, Thread: N (NPT), Port Size: 04 (1/2), Option: C (N.C. Float Type Auto Drain), Attachment: V (3-Port Valve for Residual Pressure Release; Mounting: AF+AR+V), Semi-Standard 1: Standard, Semi-Standard 2: NZ (N + Z)

Body Size: 40, Thread: N (NPT), Port Size: 04 (1/2), Option: C (N.C. Float Type Auto Drain), Attachment: V (3-Port Valve for Residual Pressure Release; Mounting: AF+AR+V), Semi-Standard 1: Standard, Semi-Standard 2: NZ (N + Z)

Rated Flow Range: 04 (0.5 to 4L/min), Flow Adjustment Valve: None, Thread: N (NPT), Port Size: 03 (3/8), Output Specification: 1 (OUT1: Analog 1 to 5V), Temperature Sensor: None, Lead Wire: N (w/o Lead Wire w/M8 Connector)

Rated Flow Range: 04 (0.5 to 4L/min), Flow Adjustment Valve: None, Thread: N (NPT), Port Size: 03 (3/8), Output Specification: 2 (OUT1: Analog 4 to 20mA), Temperature Sensor: None, Lead Wire: N (w/o Lead Wire w/M8 Connector)

Body Size: 40, Thread: N (NPT), Port: 04 (1/2), Option: D [Float Type Auto Drain (N.O.)], Attachment: V (Residual Pressure Relief 3 Port Valve), Semi-Standard 1: 8 (Metal Bowl w/Level Gauge), Semi-Standard 2: NRZ (N + R + Z)

Body Size: 40, Thread: N (NPT), Port: 04 (1/2), Option: E [Square embedded type pressure gauge (with limit indicator)], Attachment: V (Residual Pressure Relief 3 Port Valve), Semi-Standard 1: Standard, Semi-Standard 2: NRWZ (N + R + W + Z)

Body Size: 40, Thread: N (NPT), Port Size: 04 (1/2), Option: Standard, Attachment: V1 (3-Port Valve for Residual Pressure Release; Mounting: V+AF+AR), Semi-Standard 1: 1 (0.02 to 0.2MPa Setting), Semi-Standard 2: NZ (N + Z)

Body Size: 40, Thread: N (NPT), Port Size: 04 (1/2), Option: C (N.C. Float Type Auto Drain), Attachment: V (3-Port Valve for Residual Pressure Release; Mounting: AF+AR+V), Semi-Standard 1: Standard, Semi-Standard 2: NZ (N + Z)

Body Size: 40, Thread: N (NPT), Port Size: 04 (1/2), Option: Standard, Semi-Standard 1: 1N (1 + N), 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: 04 (1/2), Option: Standard, Semi-Standard 1: JN (J + N), 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: 04 (1/2), 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: 1NZ (1 + N + Z)

Body Size: 40, Thread: N (NPT), Port Size: 04 (1/2), 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: NYZ (N + Y + Z)

Body Size: 40, Thread: N (NPT), Port Size: 04 (1/2), 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: 40, Thread: N (NPT), Port Size: 04 (1/2), Option: Standard, Attachment: V (3-Port Valve for Residual Pressure Release), Semi-Standard 1: 3 (Lubricator w/Drain Cock, Exhaust Port), Semi-Standard 2: NRWZ (N + R + W + Z)