Wet Stator Motor Pumps (BCPs)

Also known as BCPs or BWCPs (Boiler Water Circulating Pumps), these sealless pumps with an integrated fluid-filled motor eliminate the need for a mechanical seal, for circulation applications using high-pressure or high-temperature fluids.

Design Features

Design Features of Wet Stator Motor Pumps (BCP / BWCP)

Vertical pump with an integrated wet wound motor. The pump and motor are designed for the same internal pressure, so there is no need for a dynamic mechanical seal. Ideal for high inlet pressure and temperature applications.

  • No mechanical seal means no leakage
  • Single or double pump discharge
  • Fluid-filled motor
  • Single external cooling water supply
  • Internal filter
  • Product lubricated radial and axial bearings (tilt pad style)
  • Supported from pump case, so no foundation bolts
  • Thermal neck keeps motor at a low temperature
  • Option: removable stator cartridge for ease of maintenance

Codes & Specifications

Codes & Specifications

Operating Data

MotorUSSI
Power400-3350HP300-2,500kW
Voltage380-11kV380-11kV
Poles2, 42, 4
VSD CompatibleYesYes
Design Pressure0-5800+ psig0-400 bar
Design Temperature32 to 750°F0 to 400°C
PumpUSSI
FlowUp to 44,000 USgpm10,000 m3/hr
HeadUp to 1,800 ft550 m

Codes and Compliances

  • ASME Section VIII and III including stamp (N)
  • Hydraulic Institute
  • Pressure Equipment Directive (PED)
  • 10CFR21 and 10CFR50 (Nuclear)
  • RCC-M and RCC-E
  • Other international codes as required.
Hydraulic Range

Hydraulic Range

Applications

Applications

Hayward Tyler Wet Stator Motor Pumps are ideal for the following applications:

Power

  • Drum Boiler Circulation
  • Subcritical Boiler Circulation
  • Circulated Fluidized Bed Circulation
  • Super-Critical Once Through Boiler Circulation
  • Ultra-Super Critical Once Through Boiler Circulation
  • Ultra-Super Critical Secondary Reheat Boiler Circulation
  • Ultra-Ultra Super Critical Once Through Boiler Circulation
  • Gas Temperature Control Economizer Recirculation
  • Selective Catalytic Reduction Economizer Recirculation
  • Selective Catalytic Reduction – Start-up Recirculation

Solar

  • Solar Steam Generating System Forced Circulation
  • Solar Start-up Recirculation
  • Central Tower Steam Generation System (CT SGS) Internal Circulation
  • Central Tower Steam Generation System (CT SGS) External Circulation

Chemical

  • Syngas Cooling Circulation
  • Syngas Scrubber Circulation
  • Boiler Circulation
  • Boiler Feedwater Circulation
  • Nuclear Reactor Water Clean-Up (RWCU)

Nuclear

  • Reactor Water Clean-Up (RWCU)
Documents

Sectional Arrangement

Hover over the numbers below for details about each feature.

Photo Gallery

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