Intermittent Boiler Blowdown Valve

A professional anti-erosion design to ensure safe and efficient boiler system operation.

Boiler Blowdown
Waterwall Drains
High-Pressure Drains
Header Drains

CVS-BD80

Why Choose the CVS-BD80?

Superior Wear Resistance: Features hardened trim (e.g., Stellite) to effectively resist the erosion and flashing caused by high-velocity, two-phase flow, extending its service life.
Rapid Sludge Removal: A unique quick-opening design allows for the rapid and effective discharge of settled sludge and dissolved solids, maintaining the boiler’s optimal working condition.
Safe & Reliable: The heavy-duty body and bonnet are designed specifically for high-pressure service. It ensures boiler efficiency and safety by removing harmful deposits.

Material1.0619+N (Carbon Steel)
Temperature-60°C to 450°C (-76°F to 842°F) for Carbon Steel models (35415)
PressurePN 40 / Class 300 (40 bar / 300 PSI)
ConnectionFlange
NPS1″, 1-1/4″, 1-1/2″, 2″
DN25, 32, 40, 50
MediumCooling water, cooling brine, warm water, hot water, steam, gas, etc.

Key Features

  • Engineered for Boiler Blowdown Service
    Specifically designed for intermittent boiler blowdown, waterwall drains, header drains, and high-pressure discharge applications.

  • Hardened Anti-Erosion Trim
    Equipped with hardened trim materials (e.g., Stellite) to resist erosion, flashing, and high-velocity two-phase flow, significantly extending service life.

  • Quick-Opening Design
    Allows rapid discharge of settled sludge, scale, and dissolved solids, ensuring effective removal of contaminants from the boiler system.

  • Optimized for High-Pressure Operation
    Heavy-duty carbon steel body and bonnet are designed to withstand demanding Class 300 (PN40) pressure conditions.

  • Improves Boiler Efficiency
    Efficient removal of deposits maintains optimal heat transfer performance and prevents scaling or tube damage.

  • Enhanced Operational Safety
    Robust construction ensures safe operation during high-temperature and high-pressure blowdown cycles.

  • Wide Temperature Capability
    Operating temperature range from -60°C to 450°C (-76°F to 842°F) for carbon steel models.

  • Reliable Flanged Connections
    Standard flanged ends provide secure and leak-free installation in industrial piping systems.

  • Compact Size Range
    Available in 1” to 2” (DN 25–50) for common boiler drain and blowdown configurations.

  • Pressure Rating PN40 / Class 300
    Suitable for high-pressure steam and boiler systems.

  • Compatible Media
    Designed for steam, hot water, cooling water, brine, and other industrial fluids.

  • Low Maintenance Structure
    Durable internal components reduce wear, minimizing maintenance frequency in cyclic blowdown service.

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