Chapter 12 - The Sovent System

the traditional installation practices adopted year after year was the so called _ which serve water closets and several fixtures

one line piping

the two line drainage system is sometimes referred to as DWV or

drainage, waste, vent

Now, DWV is referred to as the

traditional two line drainage system

recent development in drainage installation suitable for tall buildings

• eliminates the vent stack but still attained desired functions

sovent system

the sovent system was introduced by _ of Switzerland in 1962

fritz sommer

A large amount of waste and sewage discharges from the upper floor fixtures could form a slug-like pressing or pushing the air downward the pipe creating two kinds of force:

pressure, suction

the downward force is classified as

plus pressure

Likewise, the suction force called _ will siphon and pull down the water seal of the fixtures and create a trap seal loss

minus pressure

The sovent action, of reducing the positive and negative atmospheric pressure is done at each floor where the _ is installed/.

aerator

The sovent deaerator consists of”

air separation chamber

stack inlet

pressure relief outlet

stack

When the Sovent System was introduced, the material used for the Aerator and Deaerator fittings was?

copper

used as terminal of the soil branch in each floor

aerator

installed at the bottom portion of the soil stack where the house drain is connected to receive the discharge from the aerator

deaerator

nothing more than the use of aerator and deaerator fittings incorporated into the ordinary plumbing pipe installations

sovent system

What is new here is the total elimination of the second piping line system called _ which substancially occupy valuable spaces and added cost of construction

ventilation