Product Overview

The CLA-VAL 58E/D-01: Pressure Relief - Pressure Sustaining Valve with Solenoid Shut-Off is designed to maintain a minimum back pressure in the system while supplying water to a reservoir, with the solenoid shut-off activated when the tank reaches a pre-set level. This versatile valve can also be used to increase pressure in a downstream area if more pressure is needed during a fire. It can be activated at fixed hours during the day using a timer or programmer (e.g., e-Smart/L1). As part of the CLA-VAL SERIES 50, it functions as a sustaining valve (accurately maintaining a minimum preset inlet pressure) and a relief valve (opening fast to dissipate excess system pressure). It offers simple, reliable, and accurate operation with complete automation.

Key Benefits

• Automated Back Pressure & Reservoir Control: Maintains a minimum back pressure in the system while efficiently supplying water to reservoirs, with solenoid shut-off activated by a pre-set tank level.
• Fire Protection Capability: Can increase pressure in a downstream area when more pressure is needed during a fire, serving a vital safety function.
• Flexible Activation: Can be activated by electrical remote control, a timer, or programmer (e.g., e-Smart/L1) for fixed-hour operation.
• Dual Pressure Control: Functions as both a pressure sustaining valve (maintaining minimum preset inlet pressure) and a fast-opening pressure relief valve (dissipating excess system pressure).
• Automatic Operation: Provides completely automatic, simple, reliable, and accurate performance.
• Quality Approved Materials: Manufactured with quality-approved materials, ensuring durability and long service life.

Applications

The CLA-VAL 58E/D-01 is suitable for various critical water management applications where pressure maintenance, automated supply, and fire safety integration are required:

• Maintaining minimum back pressure in reservoir supply systems.
• Automated control of water supply based on tank levels.
• Enhancing pressure in downstream areas during fire events.
• Timed water distribution for specific hours of the day.

Features & Construction

• Solenoid Control: 311-D or 311-C.
• Pressure Relief Control: CRL.
• Series: CLA-VAL SERIES 50.
• Solenoid shut-off activated by pre-set tank level.
• Can increase pressure downstream during a fire.
• Activated by electrical signal from a timer or programmer.

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 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 - Pressure Sustaining Valve with Solenoid Shut-Off
Solenoid Control Models	311-D or 311-C
Pressure Relief Control Model	CRL
Activation Method	Electrical signal from timer/programmer (e.g., e-Smart/L1)

Installation & Maintenance

• Installation: Typically installed to maintain a minimum back pressure in the system while supplying water to a reservoir, with solenoid shut-off activated by a pre-set level. Can also be used to increase pressure in a downstream area during a fire.
• 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.