Size: No.1, Orifice: 2 (2.2mm), Option: N (Fluid: Consult SMC, Seal: FKM, Body: Stainless Steel), Port Size: 01 [1/8 (6A)], Thread: N (NPT), Bracket: B (Bracket)

③ For 2-position valves, the piston can only be moved from the forward end to the backward end of the cylinder. 3-position closed center valves, however, hold in the internal pressure of the cylinder when in the (N) position.

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: Standard, Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: NZ (N + Z)

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: Standard, Attachment: T (T-Interface), Semi-Standard 1: Standard, Semi-Standard 2: NZ (N + Z)

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: Standard, Attachment: Standard, Semi-Standard 1: 6C (6 + C), Semi-Standard 2: NRZ (N + R + Z)

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: G (for Sizes 20, 25, 30, 40 Round Type Pressure Gauge w/Limit Indicator; for Size10: Round Type Pressure Gauge w/o Limit Indicator), Attachment: Standard, Semi-Standard 1: 6C (6 + C), Semi-Standard 2: NRZ (N + R + Z)

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: Standard, Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: NRZ (N + R + Z)

Body Size: 20, Thread: N (NPT), Port Size: 01 (1/8), Option: CG (C + G), Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: NRZ (N + R + Z)

Body Size: 20A, Thread: N (NPT), Port Size: 01 (1/8), Option: Standard, Attachment: Standard, Semi-Standard 1: Standard, Semi-Standard 2: NZ (N + Z)

Model: 31, Orifice: 1 (1.5mm), Style: 2 (N.O., Single Unit), Option: N (SS/Ag, Seals: FKM, Class H), Suffix: Standard, Port Size: 01 (1/8), Thread: N (NPT), Voltage: 3 (110VAC 50/60HZ), Electrical Entry: C (Conduit), Surge Suppressor: Non, Rectifier: None (for DC or AC Class H Coil)

Body Size: 20, Back Flow: K (w/Backflow), Thread: N (NPT), Port Size: 01 (1/8), Options: w/o Mounting Option, Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: 2 (Metal Bowl), Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: N (Non-relieving), Flow Direction: Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure Gauge: psi

Body Size: 20, Back Flow: K (w/Backflow), Thread: N (NPT), Port Size: 01 (1/8), Options: C (N.C., Normally Closed), Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: 2 (Metal Bowl), Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: N (Non-relieving), Flow Direction: Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure Gauge

Body Size: 20, Back Flow: K (w/Backflow), Thread: N (NPT), Port Size: 01 (1/8), Options: CH (C+H), Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: 2 (Metal Bowl), Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: N (Non-relieving), Flow Direction: Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure Gauge: psi (and MPa)]

Body Size: 20, Back Flow: K (w/Backflow), Thread: N (NPT), Port Size: 01 (1/8), Options: G (Round Type Pressure Gauge, w/Limit Indicator), Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: 2 (Metal Bowl), Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: N (Non-relieving), Flow Direction: Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product:

Body Size: 20, Back Flow: K (w/Backflow), Thread: N (NPT), Port Size: 01 (1/8), Options: GH (G+H), Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: 2 (Metal Bowl), Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: N (Non-relieving), Flow Direction: Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure Gauge: psi (and MPa)]

Body Size: 20, Back Flow: K (w/Backflow), Thread: N (NPT), Port Size: 01 (1/8), Options: H (w/Set Nut; for Panel Mount), Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: 2 (Metal Bowl), Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: N (Non-relieving), Flow Direction: Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure

Body Size: 20, Back Flow: w/o Backflow, Thread: N (NPT), Port Size: 01 (1/8), Options: w/o Mounting Option, Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: 2 (Metal Bowl), Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: N (Non-relieving), Flow Direction: Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure Gauge: psi (

Body Size: 20, Back Flow: w/o Backflow, Thread: N (NPT), Port Size: 01 (1/8), Options: B (w/Bracket), Set Pressure: 0.05 to 0.85 MPa Setting, Bowl: 2 (Metal Bowl), Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: N (Non-relieving), Flow Direction: Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure Gauge: psi (and MPa

Body Size: 20, Back Flow: w/o Backflow, Thread: N (NPT), Port Size: 01 (1/8), Options: w/o Mounting Option, Set Pressure: 1 (0.02 to 0.2 MPa Setting), Bowl: 2 (Metal Bowl), Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: N (Non-relieving), Flow Direction: Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure Gauge: psi

Body Size: 20, Back Flow: w/o Backflow, Thread: N (NPT), Port Size: 01 (1/8), Options: B (w/Bracket), Set Pressure: 1 (0.02 to 0.2 MPa Setting), Bowl: 2 (Metal Bowl), Bowl Guard: None, Drain Port: w/Drain Cock, Exhaust Mechanism: N (Non-relieving), Flow Direction: Flow Direction: Left to Right, Drain Cock w/Barb Fitting: None, Pressure Units: Z [Product: psi, °C; Pressure Gauge: psi (and