Dorot S100 B Series Cast Iron Basic Hydraulic Inline Valves

The Dorot S100 B Series is a heavy-duty inline hydraulic control valve engineered for efficient flow control and long-lasting durability in agricultural irrigation, municipal water supply, and industrial systems. Built from cast iron with robust construction and superior hydraulic performance, the S100 B Series provides reliable on/off and modulating control using only line pressure—without requiring electrical actuation.

Featuring Dorot’s unique diaphragm-sealing technology, these valves deliver exceptionally low head loss and high flow capacity, while their reinforced rubber diaphragm ensures tight shut-off and responsive modulation. The inline body design allows full flow with minimal turbulence, making them ideal for both high- and low-pressure applications.

Simple to maintain and highly configurable, the S100 B Series supports a wide range of control functions via compatible pilot systems and is available in sizes from 3/4" to 12", with multiple body and coating options to suit various media and environments.

FEATURES

• Function: Basic Hydraulic On/Off or Modulating Control
• Body Design: Inline (Globe-pattern) for high flow and minimal head loss
• Available Sizes: DN20 to DN300 (¾" – 12")
  
• Control Chamber Volume: 30 cc to 1800 cc depending on size
• Max Fluid Temperature: 60°C (140°F)
• End Connections: Threaded, Flanged
• Body Material: Cast Iron
• Bonnet: Cast Iron 
• Diaphragm: Reinforced Natural Rubber 
• Spring: Stainless Steel 302
• Coating: Polyester Epoxy, Rubber, or Nylon

BENEFITS

• High-capacity inline control with minimal head loss
• Corrosion-resistant with multiple coating options for challenging environments
• Simple, inline maintenance with no internal shafts or seals to wear out
• Long-life diaphragm ensures reliable sealing, even with poor water quality
• Versatile—compatible with all Dorot pilot systems for advanced control functions
• Wide range of body sizes and pressure options to suit any irrigation or utility network
• Suitable for potable water, sea water, effluents, and industrial fluids