Dorot S100 PR/EL Series Cast Iron Basic Pressure Reducing/Electric 24AC Solenoid Valves with 3-Way Selector

The Dorot S100 PR/EL Series combines hydraulic pressure reducing functionality with 24V AC electric solenoid actuation, providing a smart, dual-mode control valve for irrigation, filtration, and water supply systems. Designed around Dorot’s trusted S100 diaphragm-actuated valve platform, this model includes a 3-Way Pressure Selector for seamless switching between automatic, manual open, or manual closed modes—enhancing flexibility and field serviceability.

In standard operation, the valve uses a pressure-reducing pilot system to regulate downstream pressure to a preset value. The integrated electric solenoid (24V AC) enables remote On/Off control via irrigation controllers or automation platforms. With the 3-way selector, operators can manually override the system at any time, making it easy to commission, test, or service the valve on-site without interruption.

This valve is ideal for pressure-sensitive irrigation zones, mainlines feeding filtration systems, and any location where both pressure control and automation are needed.

FEATURES

• Function: Combined Pressure Reducing + Electric On/Off
  
• Body Style: Globe-pattern (inline flow)
• Available Sizes: DN25 to DN250 (3" – 10")
  
• Max Fluid Temperature: 60°C (140°F)
• End Connections: Threaded, Flanged
• Body Material: Cast Iron 
• Bonnet: Cast Iron 
• Diaphragm: Reinforced Natural Rubber (optional: NBR, EPDM, Neoprene)
• Spring: Stainless Steel 302 
• Coating: Polyester Epoxy, Rubber, or Nylon
• Manual Override: 3-way selector for local control

BENEFITS

• Automatically regulates downstream pressure to protect system components
• Remote 24V AC solenoid control integrates easily with irrigation controllers
• Manual override allows safe and simple field operation during maintenance
• Dual-function valve simplifies system design—no need for separate shutoff valve
• Robust diaphragm-actuated design ensures reliable sealing and long life
• Ideal for pressure zones, irrigation blocks, fertigation heads, and filtration units