Product Overview

The CLA-VAL 50-37: Pressure Relief Valve with High Opening Speed is designed to protect systems and installations against high pressure surges, particularly when pumps are shut down abruptly due to events like power failure. Typically installed near a pump on a discharge line, this valve quickly opens to dissipate excess system pressure. As part of the CLA-VAL SERIES 50, it also acts as a sustaining valve, accurately maintaining a minimum preset inlet pressure regardless of changing flow rate. It offers a simple, reliable, and accurate solution with completely automatic operation and easy adjustment and maintenance.

Key Benefits

• Rapid Pressure Relief: Opens fast to dissipate excess system pressure, crucial for protecting systems against dangerous surges, especially during abrupt pump shutdowns.
• Surge Protection: Specifically designed to protect against severe equipment damage caused by high pressure surges from pump stopping.
• Pressure Sustaining Capability: Accurately maintains a minimum preset inlet pressure, ensuring stable upstream conditions regardless of flow rate changes.
• Automatic Operation: Provides completely automatic, simple, reliable, and accurate performance without constant manual intervention.
• Quality Approved Materials: Manufactured with quality-approved materials, ensuring durability and long service life.

Applications

The CLA-VAL 50-37 is primarily used in pumping systems for pressure protection and management:

• Installation near a pump on a discharge line to atmosphere.
• Protecting systems against high pressure surges, especially during power failures.
• Maintaining minimum upstream pressure in water distribution lines.

Features & Construction

• Pressure Relief Control: CRL.
• Series: CLA-VAL SERIES 50.
• Designed to open fast to dissipate excess system pressure.
• Functions as a sustaining valve to maintain a minimum preset inlet pressure.

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 50
Function	Pressure Relief Valve with High Opening Speed
Pressure Relief Control Model	CRL

Installation & Maintenance

• Installation: Typically installed near a pump on a discharge line, ensuring that when pumps are shut down abruptly (e.g., due to power failure), the valve opens fast to dissipate dangerous surges.
• Maintenance: Periodic maintenance checks are recommended. The valve's design with quality-approved materials contributes to its durability and long service life, reducing ongoing maintenance requirements.