• PIPELINE & PUMP COLUMN SYSTEM
  • PUMP CONTROL VALVES
  • COLUMN DRAIN VALVES
  • SURGE RELIEF VALVES
  • SNIFTER / AIR ADMISSION VALVES
  • NON RETURN VALVES
• MANUAL ISOLATION VALVES
• PUMP CONTROL VALVES
• NON RETURN VALVES
• SURGE RELIEF VALVES
• FLOW CONTROL VALVES
  • SAFETY ISOLATION VALVE - Low Pressure
  • SAFETY ISOLATION VALVE - High Pressure
• COOLING CAR VALVES
• DAM LEVEL CONTROL VALVES
• TURBINE CONTROL VALVES
• PRESSURE REDUCING VALVES
  • REGULATING VALVES
  • EXTERNAL RATIO VALVES
  • MULTI STAGE RATIO VALVES
• TECHNICAL SPECIFICATIONS

HPE’s Column Surge Protection System protects against pump motor trip outs and minimizes pressure surges (ie. water hammer) in pipelines.

All necessary system protection is allowed for and a column drain valve is usually incorporated to drain the column should maintenance or repair work be required.

HPE PUMP CONTROL VALVE

• Limits opening on pump start-up until back pressure in the column is high enough to prevent pump motor overload
• Minimizes pressure surges when pumps are stopped and startedAutomatic closure on pump trip-outs Manual override can be fitted on request
• Valve acts as a back up non return valve

• Can be throttled for an extended period of time i.e. repeated draining of a column

• Controls pipeline pulses generated by pump trip outs
• Prevents pressure from rising above its own set-pressure
• Minimizes pipeline failure and support bracket damage resulting from pump trip outs

• Allows air to be admitted into the pipe if a sub-atmospheric condition develops
• Prevents high cavitation and pressure surges during pump trip outs