Combined Check Butterfly Valve with Weight-Loaded Hydraulic Actuators

The Combined Check Butterfly Valve with Weight-Loaded Hydraulic Actuators, also known as a hydraulic control butterfly valve with counterweight, is engineered for high-performance flow regulation. It operates using a hydraulic drive to open the valve and relies on the counterweight’s potential energy for reliable, energy-efficient closing. This dual-function valve replaces both gate and check valves, offering a low fluid resistance coefficient—making it an ideal energy-saving solution for complex pipeline systems.

Key Features and Advantages:

• Dual Valve Functionality: Combines the functions of a gate valve and a check valve, reducing installation space and maintenance.

• Automatic Operation Without External Power: Designed to ensure secure and dependable valve operation even in the event of power failure.

• Emergency-Ready Design: The weight-loaded actuator enables emergency opening or closing without reliance on electrical energy—ideal for critical installations.

Intelligent Hydraulic Closing System:

The valve features a two-stage closing process:

• Fast closing to prevent backflow or surge.

• Slow closing to eliminate water hammer and protect the pipeline.

Both the timing and angle of fast and slow closing can be customized based on application requirements.

Advanced Hydraulic & Control Systems:

The hydraulic system includes:

• Automatic pressure-sustaining and auto-reset functions for reliable valve reopening.

• Electrical control options, including standard systems or PLC-based smart controls, offering:

  • Local or remote operation.

  • Integrated pump-valve coordination.

  • Optional computer-integrated control.

When the counterweight mechanism is removed, the valve can be converted into an energy storage type flow control valve.

Electrical Control System Components:

• Local control cabinet with PLC-based system, contactors, timers, and terminal blocks.

• Limit switches and pressure switches for feedback and safety monitoring.

• Electric motors for the hydraulic pump.

• Pre-wired connection cables for easy installation.

Applications: Ideal for waterworks, pump stations, critical pipeline networks, and emergency systems where reliable valve actuation is essential, regardless of power availability.

DESIGN FEATURES

•  Quick close and slow closing
• Automatic control, Electrical control, PLC control
  
• Polished disc edges to prevent damage to the seat
  
• Sealing seat made of stainless steel welded and micro finished
• Minimal pressure drop due to the hydrodynamic design of the disc
  
• Bidirectional flow (for PN10)
• Stainless steel stem
• Mechanical position indicator