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Solenoid Valve Specifications and Dimensions: 2SO160-500 & 2WO160-500 Series

Valve Model 2SO160-3/8 2SO160-1/2 2SO200-3/4 2SO250-1 2SO350-1 1/4 2SO400-1 1/2 2SO500-2
2WO160-3/8 2WO160-1/2 2WO200-3/4 2WO250-1 2WO350-1 1/4 2WO400-1 1/2 2WO500-2
Valve Type 2 Way Normally Open (NO)
Action Direct Lift Diaphragm
Cv (Orifice) 4.8 (16mm) 4.8 (16mm) 7.6 (20mm) 12 (25mm) 24 (35mm) 29 (40mm) 48 (50mm)
Operating Pressure 0 to 90PSI (110 & 220 VAC Coil); 0 to 80 (12 & 24VDC, 24VAC Coil)
Operating Temperature 14 to 176°F (-10 to 80°C) (with NBR Seal)
5 to 248°F (-15 to 120°C) (with Viton Seal)
Port Size (NPT) 3/8" 1/2" 3/4" 1" 1 1/4" 1 1/2" 2"
Body Material 2S Series: Stainless Steel
2W Series: Brass
Seal Materials NBR (Option: Viton)
Coil Protection Insulation Class H Class IP65
Coil Duty 100% ED
Coil Power 30W 30W 30W 30W 40W 40W 40W
Electrical Connection DIN
Voltages / Tolerances 12VDC, 24VDC, 24VAC, 110VAC, 220-230VAC (50-60Hz).
Voltage Tolerances: +10%-5% for DC, +/-10%-10% for AC.
Service Air, Gas, Liquid, Vacuum

2SO & 2WO Series 2/2 Direct Lift Diaphragm Normally Open Solenoid Valve:
This valve is a two-way, normally open, direct-lift valve and does not require a minimum differential pressure to operate. As shown in the diagrams below, when the coil is de-energized (left diagram), the spring force holds the diaphragm in place above the main orifice, allowing the working medium to flow freely through the valve. When the valve is energized, the diaphragm is pushed onto the main orifice, sealing the valve. The working medium supplies additional sealing pressure above the diaphram, reducing strain on the solenoid coil. This is accomplished via a small bleed orifice in the diaphragm which allows the working medium to pass through and pressurize the diaphragm from above while the valve is closed. The working medium and flow direction are indicated in purple in the diagrams.

ALL standard valves are supplied with Continuous Duty Coils of the proper class of insulation for the service indicated on the valve. It is normal for the coil temperature may become hot after being energized for extended periods. Smoke or burning odor indicates excessive coil temperature and the power should be disconnected to the coil immediately.

SERVICE LIFE: The service life of the solenoid valve depends on the operating conditions such as pressure, temperature, type of medium, and the voltage.

Stainless Steel

Model: 2SO160-500 & 2WO160-500 Series Solenoid Valve Dimensions
Brass Stainless Steel Port (NPT) L H Cv
2SO160-3/8 2WO160-3/8 3/8"691174.8
2SO160-1/2 2WO160-1/2 1/2"691174.8
2SO200-3/4 2WO200-3/4 3/4"73123.57.6
2SO250-1 2WO250-1 1"99134.512
2SO350-1 1/4 2WO350-1 1/4 1 1/4"12319524
2SO400-1 1/2 2WO400-1 1/2 1 1/2"12319529
2SO500-2 2WO500-2 2"16822748
Dimensions for Reference Use Only: Units in mm

Electrical Coil Connections

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