Adiabatic dry coolers

van Spall Associates introduced the Adiabatic Dry Cooler to the UK air-conditioning market over twenty years ago.  Since  then,  our Adiabatic Dry Coolers  have been installed on many additional applications  where low  re-cooled water temperatures are required:

• Diesel/gas engine intercoolers
• Hydraulic oil cooling
• Absorption chillers
• Engine Dynamometers
• Robot welding machines
• Heat pumps
• Geothermal
• Foundry cooling
• Air compressor cooling
• Sludge cooling
• Data centres
• Steam turbine condenser

Our Adiabatic Dry Coolers comply with all current HSE guidelines, are environmentally friendly, safe to use and maximise power and water savings. Standard features incorporated are:

• Spray water is introduced to the incoming air stream and is nor directed over the heat exchanger coil
• Minimal water usage
• This is a once through system, no water is re-circulated and therefore no water treatment is required
• All spray water is passed through an Ultra violet light disinfection system
• On cessation of the spray cycle all water remaining in the spray pipe work system is automatically drained
• An automatic purge timer is installed on the incoming water supply
• Should the ultra-violet lamp fail, the spray system is shut down until the lamp is replaced
• There is no water carryover through the fans

Principals of operation  read more >>

Materials of construction:-

Materials of construction are dependent on the type of application and location, our heavy duty standard construction comprises:

CASING: 3.0mm thick pre-galvanised sheet steel
TUBE PLATES: 2.0mm thick pre-galvanised sheet steel
TUBES: 5/8” OD seamless copper
FINS: 0.13mm thick aluminium
HEADERS: Copper tube 0.5mm wall thickness
FAN IMPELLERS: Fully adjustable cast aluminium epoxy coated aerofoil section
FAN HOUSING: 3mm thick galvanised steel
FAN MOTORS: IP55 rated Class F standard or speed control wound
CONNECTION FLANGES : PN/DIN, ASME etc
SUPPORT LEGS (ABC units): 3mm welded mild steel galvanised after fabrication
SUPPORT FRAME(DVVD units): Rigid welded steel box tube frame 3 stage epoxy coated
FINISH: 3 stage epoxy weatherproof paint system RAL 7032

Alternative materials of construction
TUBES: Stainless steel, carbon steel
FINS: Copper, electro tinned copper, stainless steel, aluminium magnesium
HEADERS: Removeable headers, stainless steel carbon steel
FINISH: Finish and colour to suit customer requirements

Accessory options

• Lon works compatible micro processor control
• Remote control and monitoring
• Anti vibration mounts
• Access and support platforms
• Screening louvers
• Acoustic control
• External 3 way valve control