Solenoid Valve Specifications & Dimensions: 2MS120-250 & 2MSO120-250 Series

Description

Specifications
Valve Model	2MS120	2MS150	2MS200	2MS250	2MSO120	2MSO150	2MSO200	2MSO250
Valve Type	2 Way Normally Closed (NC)				2 Way Normally Open (NO)
Action	Pilot Piston				Pilot Piston
Cv (Orifice)	4.5 (12mm)	4.5 (15mm)	7.6 (20mm)	12 (25mm)	4.5 (12mm)	4.5 (15mm)	7.6 (20mm)	12 (25mm)
Operating Pressure	Standard: Vacuum to 230PSI Medium Options: 6 to 580PSI (VDC); 6 to 725PSI (VAC) High Option: 87 to 1450PSI				Standard: 6 to 230PSI
Port Size (NPT)	3/8″	1/2″	3/4″	1″	3/8″	1/2″	3/4″	1″
Body Material	304 Stainless Steel (Option: 316SS)				304 Stainless Steel (Option: 316SS)
Seal Material	PTFE (Option: Viton)				PTFE (Option: Viton)
Coil Protection Insulation Class	H Class IP65				H Class IP65
Coil Duty	100% ED				100% ED
Coil Power	VDC: 20W; VAC: 22VA				VDC: 20W; VAC: 22VA
Electrical Connection	DIN				DIN
Service	Air, Inert Gas, Liquid, Steam, Vacuum				Air, Inert Gas, Liquid, Steam, Vacuum

2MS Series: 2/2 Pilot Piston Normally Closed Solenoid Valve

The 2MS Series valves are 2 way, normally closed, internal pilot piston solenoid valves. When the coil is energized, it lifts the pilot valve off the top of the piston ring and pressure under the piston ring forces the piston up to open the main valve orifice. When the coil is de-energized, the pilot valve returns to close the pilot orifice and pressure across the piston ring is equalized through a timing orifice in the side of the piston or in the valve body. The piston spring returns the piston to close the main valve orifice.

2MSO Series: 2/2 Pilot Piston Normally Open Solenoid Valve

The 2MSO series valves are 2 way, normally open, internal pilot piston solenoid valves.

To Close: when the valve is energized, it repels the plunger and forces the plunger to close the main orifice. The system pressure builds up on the top of the piston because fluid enters through the bleed orifice, forcing the piston down until it covers the main orifice and stops media flow through the valve.

To Open: When the valve is de-energized, it releases the plunger and the spring pushes the plunger away from the pilot orifice, allowing fluid to flow out and causing the system pressure holding the piston closed to drop. As system pressure on the top of the piston is reduced, full system pressure on the opposite side of the piston acts to lift the piston away from the main orifice, which allows the full media flow through the valve.

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.

Electrical Coil Connections

• • To Connect a DIN Coil:
    • Remove the Philips screw from the plastic housting & unplug from the DIN coil.
    • Use the removed screw to push the terminal block out of the plastic DIN housing.
    • Note the “1”, “2”, and ground “⏚” symbols.
      • For DC DIN Coils, connect “1” to your positive lead and “2” to your negative lead.
      • For AC DIN Coils, connect “1” to your HOT lead, “2” to your NEUTRAL lead, and “⏚” to your ground lead, if required.

• To Connect a Grommet Coil:
  • For DC Coils, connect the red wire to your positive lead and the black wire to your negative lead.
  • For AC Coils, connect the black wire to your HOT lead and the white wire to your NEUTRAL lead.
  • For Coils provided with Molded Cables, the color of the wire indicates the type of lead:
    • GREEN = Ground Wire
    • BLUE = Positive or HOT Wire
    • BROWN = Negative or Neutral Wire

Downloads:

2MS120-500.PDF