Encyclopedia search

Reset search
Showing 151 to 160 of 398 results
Fire sprinkler
Fire sprinklers can be open orifice or automatic. Automatic sprinklers are activated by heat that breaks the sensing device keeping the sprinkler closed. The water from the pipe comes through the sprinkler and hits the deflector and gives a water spray.
Fire sprinkler system
To prevent loss of people and assets in buildings fire sprinkler systems use water to suppress fires in buildings.
Fire Water Supplies
The water supply to the fire pump in fire sprinkler installations must fulfill the requirements for flow, pressure and duration. Sources can be public water mains, water storage tanks and inexhaustible sources like lakes, rivers and canals
Floor heating
A viable alternative to conventional radiator style heating systems is under floor heating. A typical solution consists of small bore pipes, laid in the concrete slab under the floor’s surface. The solution is typically fed by a condensing boiler or district heating.
Flow temperature
The flow temperature refers to the temperature of the water in the supply (flow) pipe in a heating system or separate part of a heating system. If a heating system is directly connected to the district heating system its flow temperature is set by the district heating provider.
Flow velocity
The flow velocity of a liquid in pipes varies across the cross-section of the pipe. The flow velocity profile depends on whether the flow is laminar or turbulent.
Fluoroelastomers (FKM) are one of the different types of rubber used as a packing material in shaft seals to prevent the pumped media from leaking.
Foam sprinkler systems
Foam sprinkler systems use foam to extinguish fires in buildings. The fire sprinkler pump distributes the water & foam mixture via the pipe-system and discharges the foam spray via the sprinklers.
Free passage
The dimension of the free passage usually refers to the largest spherical object that may pass through the impeller.
Free release fire pump
Free release fire pumps are standard pumps used as fire pumps. These standard pumps are not made for fire pump application, which can cause poor functionality in a sprinkler-pump application due to risk of clogging and instabilities in System pressure.