Catalogue

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106 / 206-BPC

Booster Pump Control Valve – Double Chamber

  • Suitable for most pumping applications including suction lift and low differential head
  • Prevents pump starting and stopping surges
  • Built-in non-slam mechanical check reduces surges on loss of power
  • Separate opening and closing speed controls

The 106-BPC and 206-BPC booster pump control valves are installed in-line, directly downstream of the pump discharge.

The pump control valve is normally closed and on pump start-up, a pilot solenoid is energized to open the valve, at a rate governed by the opening speed control. When shut-down is required the pilot solenoid on the valve is de-energized to commence closing. The pump is kept running while the valve slowly closes. When the valve is almost fully closed and flow is virtually zero, a stem mounted cam triggers the limit switch to stop the pump.

In the event of a power failure, the built-in mechanical drop check closes immediately when the flow stops, independently of the valve position. Surges are minimized by closing the valve before reverse flow occurs.

Specifications

  • The valve shall be a Singer Valve model 106-BPC / 206-BPC, size “_____”, ANSI Class 150 (ANSI 300, ANSI flange drilled to ISO PN 10 / 16/ 25 or 40) pressure rating / flange standard, globe (angle), style valve. Solenoid valve shall be four-way de-energized to close valve, with a 120VAC / 60Hz (220 VAC / 50 Hz or 240 VAC/ 60 Hz) solenoid coil. Assembly shall be according to Schematic A-0426H.
  • The Booster Pump control valve will eliminate surges associated with the normal stopping and starting of booster pumps. On pump start-up, a pilot solenoid is energized to begin opening the valve, at a rate governed by the opening speed control. Separate flow control valves and a double chamber design will allow opening and closing speeds to be adjusted independently.
  • When the solenoid is de-energized, the valve slowly closes while the pump continues to run. When the valve is almost fully closed and flow is virtually zero, a stem-mounted cam triggers the limit switch to stop the pump.
  • In the event of power failure while the pump is running, or other sudden stoppage of the pump, an internal drop check valve will prevent reverse flow back through the valve or pump.
  • Refer to Main Valve section, page 11, 106-PTC or 206-PTC, page 33, for detailed information pertaining to valve sizes and materials, selection criteria and specifications.
  • Refer to Pilot and Accessories section, page 249, Micrometer Flow Control Valves for detailed information pertaining to materials and specifications. Solenoid specification information is available from Singer Valve only at this time.