Stationary Screens

Stationary Screen

Stationary Screens for Cooling Tower and Pump Protection:

WTR stationary screens, also known as static screens, are one of the most economical means of protecting downstream equipment. Stationary screens are used in all types of applications where debris fouling is not an hourly issue, yet protection of downstream equipment is essential.

Debris in the flow stream that can foul condensers, heat exchangers, and pumps includes degrading tower elements (in closed loop cooling cycles), blow down, windblown trash, and common aquatic vegetation. Stationary screens are designed for manual cleaning with owner’s existing washing equipment. Stationary screens are also ideal for low flow or light debris loads.

Stationary screens are typically used in series with a primary screen facing the flow. A roving screen is placed downstream to capture debris when the primary screen is fouled and requires cleaning. Stationary screens can be sized for new construction or adapted to existing sites, including the guides.

WTR Engineering, LLC, is a wholly owned subsidiary of WesTech Engineering, as of April 1, 2017. WTR designs and supplies mechanical water filtration equipment, such as raw water and wastewater screening for large flows, for both the municipal and industrial markets, including the power industry.

Features

  • Dedicated framed construction to site-specific channel dimensions
  • Each screen contains a self-draining debris scoop to capture screened material on removal
  • Materials of construction of Carbon Steel or Stainless Steel (304L, 316L, duplex, or other).
  • Synthetic clamps and slide pads are used for corrosion resistance
  • Various lifting methods are available such as customer’s sling / chains or a dedicated lifting beam
  • Lifting eyes can be exposed for sites with handrails or recessed for deck cover plates
  • Screens can be single height or split in sections based on available plant lifting equipment
  • Guidance rollers are used to prevent jamming in the channel on insertion and removal
  • Variable guide arrangements to fit site requirements

Benefits

  • Pump and condenser protection from debris
  • Captures disintegrating cooling tower elements and windblown debris
  • Multiple channels only require one (1) roving screen
  • No utility (electric, air, or water) consumption during operation
  • Debris captured during removal by self-draining debris scoop
  • Split removal can reduce overhead lifting height requirements
  • Prevents jamming on insertion or removal 

Applications

  • Power plant cooling water (fossil and nuclear)
  • Industrial water (petrochemical plants, pulp and paper, steel mills, etc.)
  • Pumping stations
  • Irrigation for water distribution
  • Potable water intakes
  • Water parks
  • Numerous pump applications