Dorot S80 PR Series Reinforced Nylon Hydraulic Angle Pressure Reducing Valve

The Dorot S80 PR Series is a high-performance pressure reducing valve designed to maintain a constant downstream pressure in agricultural and irrigation systems, regardless of upstream pressure fluctuations or varying flow demands. This hydraulically operated angle valve is ideal for protecting drip lines, sprinklers, filtration units, and distribution networks in open fields, greenhouses, and horticultural environments.

Manufactured from reinforced nylon, the S80 PR Series is lightweight, corrosion-resistant, and built to withstand aggressive outdoor conditions. Its unique diaphragm design enables smooth modulation and accurate pressure regulation, even at low flow rates, while the angle-pattern body reduces pressure losses and simplifies system layout.

The valve operates using a pilot system that continuously senses downstream pressure and adjusts the valve opening to maintain the desired setpoint—ensuring optimal water delivery and system protection.

FEATURES

• Function: Hydraulic Pressure Reducing
• Valve Type: Angle-pattern with pilot-operated control
• Pressure Regulation: Maintains constant downstream pressure under variable upstream conditions
• Available Sizes: DN100 Flanged
• Pressure Rating: PN10
• Operating Pressure: 0.7 – 10 bar (10 – 145 psi)
  
• Maximum Temperature: 70°C (160°F)
• Settable Relief Range: 1 – 9 bar (15 – 130 psi)
• Control Chamber Volume:
• Materials
  • Body & Bonnet: Reinforced Nylon (GRP)
  • Diaphragm: Natural Rubber (NR)
  • Spring: Stainless Steel 302
  • Bolts & Nuts: Stainless Steel 304

BENEFITS

• Maintains stable outlet pressure, protecting downstream irrigation infrastructure
• Reduces pressure surges and water hammer, improving system longevity
• Pilot-controlled accuracy, even under fluctuating flow or inlet pressure
• Angle body minimizes head loss and simplifies pipe layouts
• Reinforced nylon construction ensures durability and chemical resistance
• Fully hydraulic—no electricity required
• Easy to install, adjust, and service in the field

SPECIFICATIONS

• Max. Pressure: 10 bar (145 psi)
• Min. Operating Pressure: 0.7 bar (10 psi)
• Recommended Min. Flow: 1 m³/h (5 gpm)
• Max. Fluid Temperature: 70°C (160°F)
• Materials:
• Body & Bonnet: Reinforced Nylon
• Diaphragm: Natural Rubber
• Spring: Stainless Steel 302