Product Overview

The CLA-VAL 45-01 Flow Control Valve with Upstream Pressure Control is designed to limit flow rate and simultaneously sustain a minimum upstream pressure. This valve is typically installed where water supply to a lower system (such as an industrial user, housing area, or irrigation) must be limited to a maximum flow rate, and when a minimum upstream pressure in a high-pressure main and/or an upstream distribution network must be sustained. As part of the CLA-VAL SERIES 40, it accurately limits excessive flow to a preselected maximum rate (Flow Control) regardless of changes in pressure or varying inlet flow. It offers completely automatic, simple, reliable, and accurate operation.

Key Benefits

• Dual Control Functionality: Limits flow rate to a preselected maximum while simultaneously sustaining a minimum upstream pressure.
• Protects Upstream Networks: Ensures a minimum upstream pressure is maintained in high-pressure mains or distribution networks, preventing pressure drops.
• Accurate Flow Limitation: Accurately limits excessive flow to a preselected maximum rate, ensuring consistent performance regardless of pressure changes or varying inlet flow.
• Automatic Operation: Provides completely automatic, simple, reliable, and accurate performance.
• Cavitation Prevention: Includes an orifice plate assembly that controls flow rate and helps prevent cavitation.
• Quality Approved Materials: Manufactured with quality-approved materials, ensuring durability and long service life.

Applications

The CLA-VAL 45-01 Flow Control Valve with Upstream Pressure Control is crucial for water supply systems requiring precise control over both flow and upstream pressure:

• Limiting water supply to lower systems (industrial users, housing areas, irrigation).
• Sustaining minimum upstream pressure in high-pressure mains.
• Managing upstream distribution networks.
• Any application where simultaneous flow control and upstream pressure sustenance are required.

Features & Construction

• Pressure Relief Control: CRL.
• Flow Control: CDHS-18.
• Orifice Plate Assembly: X52-A (included).
• Series: CLA-VAL SERIES 40.

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 the valve or remove excessive system overpressures.
• Corrosion Protection: Possibility to protect the 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 40
Function	Flow Control Valve with Upstream Pressure Control
Pressure Relief Control Model	CRL
Flow Control Model	CDHS-18
Orifice Plate Assembly	X52-A (Included)

Installation & Maintenance

• Installation: The Orifice Plate Assembly may be fixed directly to the main valve outlet flange, but better control is obtained if it is installed in stabilized flow conditions downstream of the valve.
• Maintenance: Periodic maintenance checks are recommended to ensure optimal performance. The valve's design with quality-approved materials contributes to its durability and long service life.