Hydrobar Upstream - Downstream Excellence

• RYL valves are 100% hydraulically operated control valves that maintain and stabilize pressure with two independent functions. It maintains the upstream pressure at a minimum, predefined value regardless of variations in demand, and at the same time prevents the downstream pressure from exceeding a maximum set point. Normally equipped with visual position indicators, body made of ductile iron with epoxy coating and internal parts of stainless steel.
• The valve is designed to reduce pressure loss, noise and damage related to cavitation. The RYL control valve is completely modular and can be used for a wide range of applications
• Epoxy coating according to FBT technology, color blue RAL 5005.
• Internal and external application with a minimum coating thickness of 250 μm.
• Epoxy coating, approved for drinking water, electrostatically applied according to DIN 3476-1.
• Compliance with standards : Tested according to EN 12266. Face-to-face dimensions ISO 5752-1. 
• Approval: ACS (Certificate of Health Conformity). 

Information for sizing:

• Upstream, downstream pressure and flow rate are necessary for correct sizing.
• The AC anti-cavitation device is recommended for resistance against cavitation and precise regulation in low flow cases.
• A minimum length of 3 DN in upstream of the valve is recommended for better accuracy.

Pilot adjustment ranges Upstream:

• Blue spring: from 0.7 to 7 bars.
• Red spring: from 1.5 to 15 bars.
• Higher values up to 25 bars on request.
• Values below 0.7 bars available with high sensitivity drivers.

Conditions of use:

• Maximum temperature: 70°C.
• Minimum operating pressure: 0.7 bar.
• Maximum operating pressure: 25 bars.

Options:

• Linear position transmitter with mA output (RYL CSPL model).
• On-off linear position transmitter (RYL CSPO model).
• Kit pressure measurement.
• High capacity self-cleaning filter.
• Manometers not supplied (option). 
• Upstream pressure maintainer with backflow prevention.
• Upstream pressure maintainer with solenoid valve.
• Upstream pressure maintainer with high sensitivity pilot.

Applications:

• Distribution networks water
• Fire protection networks
• Irrigation networks