Product Overview

The CLA-VAL 90-71: Pressure Reducing Valve with Anti-Cavitation Kit is designed to hold downstream pressure to a pre-determined limit, effectively reducing a higher inlet pressure to a constant downstream pressure regardless of changing flow rate or varying inlet pressure. This valve includes an Anti-Cavitation Kit (ACS option) which significantly reduces noise and vibration, and features 316 stainless steel trim as standard, making it suitable for high pressure differentials. It is a simple, reliable, and accurate valve, ensuring completely automatic operation, ideal for typical pressure reducing valve stations, including those using two valves in parallel to handle high and low flows.

Key Benefits

• Sensitive & Accurate Pressure Control: Automatically reduces higher inlet pressure to a steady lower downstream pressure, ensuring precise regulation regardless of changing conditions.
• Anti-Cavitation Kit (ACS Option): Specifically designed to reduce noise and vibration, and handle high pressure differentials, extending valve life and system integrity.
• Superior Material: Features 316 Stainless Steel trim as standard, ensuring high resistance to corrosion and long-term durability.
• Reliable Drip-Tight Closure: Main valve and pilot valve close drip-tight when downstream pressure exceeds the preset limit.
• Easy Adjustment & Maintenance: Designed for straightforward functionality, offering easy adjustment and maintenance.
• Wide Application Scope: Suitable for various pressure reducing valve stations, including those using multiple valves in parallel to handle high flows and low flows.

Applications

The CLA-VAL 90-71 is ideal for a variety of water distribution systems requiring precise and reliable pressure reduction, especially where cavitation is a concern:

• Main pressure reducing valve stations.
• Installations where higher inlet pressure needs to be reduced to a steady lower downstream pressure.
• Applications where noise and vibration reduction from cavitation are critical.

Features & Construction

• Pilot-operated regulator design.
• Pressure Reducing Control: CRD.
• Includes Anti-Cavitation Kit (ACS option).
• Standard Trim Material: 316 Stainless steel.
• Designed for high pressure differentials.

Customisation Options

• Operational Enhancements:
  • LFS Option: For controlling low flows or night flows.
  • KG1 Option: Use stem cleaning for harsh water.
• Maintenance & Monitoring:
  • Option to check on periodic maintenance.
• Environmental Adaptability: Options to adapt to high temperatures or frost risk.
• Security & Protection: Options to add hydraulic safety back-up to your valve or remove excessive system overpressures.
• Corrosion Protection: Possibility to protect your valve with upgraded materials.
• Recommended Assembly: Can be combined with an H-Strainer AQUA 90-501 and "anti-shock" air release & vacuum break valve AQUA 70-516 for optimal regulation.

Technical Specifications

Specification	Value
Series	CLA-VAL SERIES 90
Model	90-71
Function	Pressure Reducing Valve with Anti-Cavitation Kit
Pressure Reducing Control Model	CRD
Trim Material (Standard)	316 Stainless Steel

Installation & Maintenance

• Installation: The CLA-VAL 90-71 is designed to hold downstream pressure to a pre-determined limit. It can be installed as part of a typical pressure reducing valve station, even using two valves in parallel for wide ranges of flow rates. It is recommended to select the appropriate size valve to handle the pump output at an acceptable head loss, avoiding oversizing. A downstream pressure relief valve is recommended for this type of application.
• Maintenance: Periodic maintenance checks are recommended. The valve's robust design with quality-approved materials and the anti-cavitation kit contribute to its durability and long service life, reducing ongoing maintenance requirements.