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Solenoid valve
Solenoid valves are broadly used for controlling heat or cooling with ON/OFF consumers.
Specific density
The specific density of a material or liquid is the term used to describe the unit mass of a material or liquid.
Sources of legionella in commercial buildings other than water systems
Microbacterial growth is not only a problem in hot and cold water systems and cooling towers but also in many other applications in commercial buildings such as water fountains, spas, swimming pools and fruit and vegetable moisturising systems.
Specific heat capacity
The specific heat capacity of a material or liquid is the term used to describe the amount of energy used to raise the temperature of 1 kg of the material/liquid by 1 K.
Speed controlled operation
Speed control by means of a frequency converter is without no doubt the most efficient way of adjusting booster pump performance exposed to variable flow requirements.
Split unit
A split unit is a system that can both cool, heat and dehumidify air in a room, and is a good alternative to electrical heating.
Sprinkler alarm valve
An alarm valve prevents a reverse flow of water from the installation into the fire-pump room, but in case a fire sprinkler is activated (opened) due to fire, the alarm valve will open and permit water flow into the system.
Sprinkler distribution pipework
The sprinkler pipework distributes the fire suppression media into the building compartments. The pipe system design must be in compliance with the specifications described in the installation standard for fire sprinkler systems.
Sprinkler system types
The fire installation types; wet system, dry system, Deluge and pre-action systems depends on the temperatures (frost or no frost) and the activation method of the fire system
Stainless steel 1407
Stainless steel is chromium containing steel alloys, which improves the corrosion resistance of stainless steel. The minimum chromium content in standardised stainless steel is 10.5%.