STC 2PO250-1-2A-D 1" NPT Direct Acting/Lift 2 Way Plastic Solenoid Valve, 24VAC

1" NPT Direct Acting/Lift Normally Open 2 Way Plastic Solenoid Valve (24VAC)

To Close: When the valve is energized, the coil repels the plunger then the plunger covers the main orifice. The system pressure builds up on the top of the diaphragm/piston through the bleed orifice, forcing the diaphragm/piston down until it covers the main orifice and stops media flow through the valve. When the system pressure is 0PSI, the valve also can be operated.

To Open: When the valve is de-energized, the coil releases the plunger. The plunger uncovers the pilot orifice causing system pressure holding the diaphragm/piston closed to drop. As system pressure on the top of the diaphragm/piston is reduced, full system pressure on the opposite side of the diaphragm/piston acts to lift the diaphragm/piston away from the main orifice, which allows the full media flow through the valve. When the system pressure is 0PSI, the valve can be operated.

Features:

• 2-Way, Normally Open
• Direct Lift Diaphragm
• Body: Nylon Plastic (PA66)
• Seal: NBR
• Operating Temperature: 32 to 122°F (0 to 50°C)
• Operating Pressure: Vacuum to 90PSI
• Coil Power: 30W