2S stainless steel solenoid valves provide normally closed, two-port fluid control with 1/8″ to 2″ connections. The selection below covers nine models with 2.5mm to 50mm orifices. Match the coil supply, seal option and medium-specific pressure range to the application.
| Model | Orifice | Cv | Port | Fluid viscosity | Maximum pressure limit |
|---|---|---|---|---|---|
| 2S025-06 | 2.5mm | 0.23 | 1/8″ | Below 20cSt | 10kgf/cm² |
| 2S025-08 | 2.5mm | 0.23 | 1/4″ | Below 20cSt | 10kgf/cm² |
| 2S040-10 | 4mm | 0.6 | 3/8″ | Below 20cSt | 10kgf/cm² |
| 2S160-15 | 16mm | 4.8 | 1/2″ | Below 50cSt | 10.5kgf/cm² |
| 2S200-20 | 20mm | 7.6 | 3/4″ | Below 50cSt | 10.5kgf/cm² |
| 2S250-25 | 25mm | 12 | 1″ | Below 50cSt | 10.5kgf/cm² |
| 2S350-35 | 35mm | 24 | 1-1/4″ | Below 50cSt | 10.5kgf/cm² |
| 2S400-40 | 40mm | 29 | 1-1/2″ | Below 50cSt | 10.5kgf/cm² |
| 2S500-50 | 50mm | 48 | 2″ | Below 50cSt | 10.5kgf/cm² |
| Parameter | Listed base models |
|---|---|
| Actuation | Direct acting |
| Configuration | Two ports, two positions; normally closed |
| General operating pressure range | 0-7kgf/cm², subject to the medium limits below |
| Water | 0-5kgf/cm² |
| Air | 0-7kgf/cm² |
| Oil | 0-5kgf/cm² |
| Gas | 0-7kgf/cm² |
| Working temperature | 5-80°C |
| Voltage tolerance | ±10% |
| Body | Stainless steel |
| Seal options | NBR, EPDM or VITON |
The maximum pressure limits are separate from normal operating ranges. Select the seal for the actual fluid and temperature. These 5-80°C models are not specified here for steam service.
The gallery includes a 2S160-15K lead-wire configuration marked 0.15-0.8MPa. Its K suffix and marked pressure identify a distinct configuration; the base-model ratings above do not establish its medium-specific limits.
| Element | Selection |
|---|---|
| Series | 2S stainless steel two-position, two-port valve |
| Orifice code | 015: 1.2mm; 020: 2mm; 025: 2.5mm; 040: 4mm; 160: 16mm; 200: 20mm; 250: 25mm; 350: 35mm; 400: 40mm; 500: 50mm |
| Port code | 06: 1/8″; 08: 1/4″; 10: 3/8″; 15: 1/2″; 20: 3/4″; 25: 1″; 35: 1-1/4″; 40: 1-1/2″; 50: 2″ |
| DC coil | DC12V or DC24V |
| AC coil, 50/60Hz | AC24V, AC36V, AC110V, AC220V or AC380V |
| Electrical connection or coil option | Blank: lead wires; D: connector; E: explosion-proof coil option; G: waterproof coil option |
Specify the complete model, voltage and coil connection. Additional orifice codes are ordering options beyond the nine models tabulated here. No protection classification is specified for the E or G coil option.
A, B, C and D are in millimeters; K is the PT connection size. Match the complete model when selecting the required installation envelope.
| Model | A | B | C | D | K, PT |
|---|---|---|---|---|---|
| 2S025-06 | 66 | 30.3 | 75 | 40.5 | 1/8″ |
| 2S025-08 | 66 | 30.3 | 75 | 40.5 | 1/4″ |
| 2S040-10 | 74 | 32.2 | 85.5 | 52.5 | 3/8″ |
| 2S160-15 | 101.5 | 57 | 117 | 69 | 1/2″ |
| 2S200-20 | 107 | 57 | 123.5 | 73 | 3/4″ |
| 2S250-25 | 111.5 | 73.5 | 134.5 | 99 | 1″ |
| 2S350-35 | 142 | 95 | 172 | 123 | 1-1/4″ |
| 2S400-40 | 142 | 95 | 172 | 123 | 1-1/2″ |
| 2S500-50 | 172 | 123 | 209 | 168 | 2″ |
