BLDG UTILITIES Flashcards
9An excessive water pressure can be minimized using this valve
Pressure Reducing Valve
Supplies water to the plumbing fixtures by means of gravity
Overhead Feed System
A new concept in water distribution where compressed air is used as the delivery agent.
AIR PRESSURED WATER DISTRIBUTION
This type of water distribution is fast superseding
AIR PRESSURED WATER DISTRIBUTION
Used on tall building that could not be served adequately by the street main.
DIRECT UP-FEED PUMPING SYSTEM
It is a Triplex Pump installed to operate in sequence according to the volume of demand.
DIRECT UP-FEED PUMPING SYSTEM
When the water demand is small, the small pump called ______ will operate.
JOCKEY
refers to the resistance produced by the following water with the fittings and interior surface of the pipe.
Friction
In water supply distribution, it is defined as the resistance between the molecules of water.
friction
The force required to move the water inside the pipe.
Pressure
water at rest
Static Pressure
Pressure available
Residual Pressure
the pressure range measured over a period of 24 hours
Normal Pressure
This valve will keep the pressure constant at 40 psi or can be reset to any other pressure desired.
Pressure Reducing Valve
The maximum water discharge of fixtures in terms of fixture unit.
Maximum Demand
One factor to be considered in determining the size of the water service pipe
Probable Demand
Use on small water distribution system for elevating water in wells or other sources.
Piston Pump
Associated with tall buildings water distribution system.
Centrifugal Pump
Small hot water tank made of copper or stainless-steel sheet (for low to medium-rise bldgs)
Range Boiler
Large hot water tank made of heavy-duty stainless-steel sheet (For high-rise bldgs)
Storage boiler
small tank used to protect closed water heating systems and domestic hot water systems from excessive pressure
expansion tank
heater controlled by a thermostat
electric heater
gas burner is placed below the coil
gas heater
solar energy is used for heating water. should have 100-300L capacity
solar water heater
THE RESISTANCE PRODUCED BY THE FLOWING WATER WITH THE FITTINGS AND INTERIOR SURFACE OF THE PIPE
Friction
a mechanical device used to circulate hot water to the plumbing fixtures
the pump circuit system
includes all valves and controls used in plumbing systems which are accessible
regulating equipment
Used to collect water from an aquifer
Submersible Pump
a valve in which the flow of water is cut off by means of a circular disc, at RIGHT ANGLES TO THE DIRECTION OF FLOW
GATE VALVE
The opening in the gate valve is usually as large as the ____
full bore of the pipe
a valve in which the flow of fluid is cut off by means of circular disc that FITS OVER and against the horizontal valve seat
globe valve
serves as a vital connection point between the main water supply and indiv fixtures; making a 90-degree turn
angle valve
o types of angle valve
two-way angle valve & three-way angle valve
a valve that automatically closes to prevent the flow of liquid or gas in a reverse direction; checks the reversal flow of water
check valve
A NON-RETURN VALVE INSTALLED IN A PUMP SUCTION
FOOT VALVE
a valve that acts as a fail-safe
safety valve
a safety valve which automatically releases a substance from a boiler
pressure relief valve
a quarter-turn valve
ball valve
cuts the flow of water, typically used in water heaters
cut-off valve
a valve that isolates or regulates the flow of a fluid
butterfly valve
are approved type installed receptacles connected to the plumbing system
plumbing fixtures
