Dorot S100 F Series Cast Iron Basic Hydraulic Float Valves with Float Actuator

The Dorot S100 F Series is a pilot-operated hydraulic float valve designed to automatically maintain liquid levels in tanks, reservoirs, or break tanks by opening or closing in response to float position. Built with a heavy-duty cast iron body and actuated by a mechanical float pilot, this valve provides reliable and precise level control without requiring electrical power—ideal for remote or off-grid installations.

As the water level in the tank rises or falls, the float actuator transmits a hydraulic signal to the main valve, which opens or closes accordingly. The valve’s diaphragm-actuated design ensures smooth operation, drip-tight sealing, and long-term reliability even in systems with variable pressure or sediment-laden water.

Available in both globe and angle body configurations, the S100 F Series is suitable for a wide range of industrial, agricultural, and municipal water supply applications.

FEATURES

• Function: Automatic level control via hydraulic float actuator
• Operation: Fully hydraulic (no electrical power required)
• Control Type: Float pilot-controlled on/off
• Body Style: Globe-pattern (inline flow)
• Available Sizes: DN25 to DN200 (1" – 8")
  
• 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
• Relay Valve Manual Override: Built-in 3-position selector

BENEFITS

• Automatically maintains constant water level in storage tanks or reservoirs
• Simple float-actuated design for easy installation and adjustment
• No external power required—ideal for remote or solar-powered systems
• Rugged cast iron body with corrosion-resistant coating for long service life
• Positive, drip-tight shutoff prevents overflow or tank depletion
• Fully compatible with Dorot control accessories and configurations