Drain control valve and manifold system

A control valve and manifold system, comprising:

• a valve including:
• a valve body having a rigid wall defining inlet and outlet openings at opposite ends thereof and a main flow passageway between said inlet and outlet openings;
• a first tubular valve member of elastomeric material having first upstream and downstream ends in fluid communication with one another, said first upstream end secured to said rigid wall so as to receive fluid entering said passageway through said inlet opening, said first tubular valve member being normally open to fluid flow but being yieldingly collapsible to prevent fluid from passing therethrough in response to downstream pressure increases;
• and,
• a first ring secured about said first tubular valve member, said ring dimensioned to prevent the passage of said first downstream end through said inlet opening in the event of a downstream pressure increase;
• and,
• a manifold having a first fluid inlet in fluid communication with said outlet opening of said valve body and having at least one fluid outlet for the distribution of fluids therefrom.

A valve, comprising:

• a valve body having a rigid wall defining inlet and outlet openings at opposite ends thereof and a main flow passageway between said inlet and outlet openings;
• a tubular valve member of elastomeric material having upstream and downstream ends in fluid communication with one another, said tubular valve member positioned within said main flow passageway such that said upstream end receives fluid entering said passageway, said tubular valve member being normally open to fluid flow but being yieldingly collapsible to prevent fluid from passing therethrough in response to downstream pressure increases;
• and,
• a ring secured about said tubular valve member, said ring dimensioned to prevent the passage of said downstream end through said inlet opening in the event of a downstream pressure increase.