Product Overview

The CLA-VAL 90-01-LHL: Low Head Loss Pressure Reducing Valve is specifically developed for systems where energy losses must be kept to a minimum, typically during periods of maximum demand. This valve ensures a pressure head loss lower than 1 meter of hydraulic head (0.1 bar) for pipe flow velocities up to 1.5 m/s, optimizing energy efficiency. Sharing core components with the CLA-VAL standard Pressure Reducing Valve, it maintains a constant downstream pressure, regardless of changing flow rate or varying inlet pressure. It is an accurate, pilot-operated regulator known for its exceptional reliability and extremely accurate control of its set-point, adjustable over a wide range of pressures.

Key Benefits

• Minimises Energy Losses: Specifically designed for low head loss (lower than 1 mHd or 0.1 bar), crucial for energy efficiency during periods of maximum demand.
• Extremely Accurate Control: Provides extremely accurate control of the set-point, ensuring precise pressure regulation.
• Exceptional Reliability: Built for dependable performance, offering high reliability in critical systems.
• Wide Range of Pressure Adjustment: Adjustable over a wide range of pressures to suit various system requirements.
• Standard Component Consistency: Shares core components with standard CLA-VAL Pressure Reducing Valves, simplifying maintenance.
• Automatic Operation: Operates automatically, offering simple and reliable pressure control.
• Quality Approved Materials: Manufactured with quality-approved materials, ensuring durability and long service life.

Applications

The CLA-VAL 90-01-LHL is ideal for water distribution systems where energy efficiency and precise pressure reduction are paramount, especially in situations with high flow demand:

• Systems where energy losses must be kept to a minimum, typically during periods of maximum demand.
• Water distribution networks requiring accurate and reliable pressure reduction.
• Applications benefiting from low pressure head loss.

Features & Construction

• Pilot-operated regulator design.
• Pressure Reducing Control: CRD.
• Core components are shared with the CLA-VAL standard Pressure Reducing Valve.
• Designed to operate with a pressure head loss lower than 1 mHd (0.1 bar) for pipe flow velocities up to 1.5 m/s.

Customisation Options

• Operational Enhancements:
  • LFS Option: For controlling low flows or night flows.
  • KO Option: To extend valve life with Anti-Cavitation trim.
  • 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	90-01-LHL
Function	Low Head Loss Pressure Reducing Valve
Pressure Reducing Control Model	CRD
Pressure Head Loss	Lower than 1 mHd (0.1 bar) (for pipe flow velocity up to 1.5 m/s)
Pipe Flow Velocity (for specified head loss)	Up to 1.5 m/s (for typical DMA valve sizes)
Pressure Adjustment Range	Adjustable over a wide range

Installation & Maintenance

• Installation: This valve is specifically developed for systems where energy losses must be kept to a minimum. It can be installed as part of typical DMA valve sizing systems.
• Maintenance: Periodic maintenance checks are recommended. The valve's core components are shared with the standard CLA-VAL Pressure Reducing Valve, simplifying maintenance. Its design for energy efficiency contributes to reduced operational costs.