Hand and body lotions should not be used to relieve vaginal dryness since they can be irritating to the vaginal tissues. Vaginal estrogen â Vaginal estrogen is the most effective treatment option for women with vaginal dryness.Vaginal estrogen must be prescribed by a healthcare provider. Very low doses of vaginal estrogen can be used when it is put into the vagina to treat vaginal dryness.A small amount of estrogen is absorbed into the bloodstream, but only about 100 times less than when using estrogen pills or tablets.AGINAL DRYNESS CAUSES. Estrogen helps to keep the vagina moist and to maintain thickness of the vaginal lining. Vaginal dryness occurs when the ovaries produce a decreased amount of estrogen. This can occur at certain times in a woman's life, and may be permanent or temporary.
Solenoid valve. A solenoid valve is an electromechanically operated valve. The valve is controlled by an electric current through a solenoid: in the case of a two-port valve the flow is switched on or off; in the case of a three-port valve, the outflow is switched between the two outlet ports.
Orifice. The media controlled by the solenoid valve enters the valve through the inlet port (Part 2 in the illustration above). The media must flow through the orifice (9) before continuing into the outlet port (3). The orifice is closed and opened by the plunger (7). The valve pictured above is a normally-closed solenoid valves. Normally-closed valves use a spring (8) which presses the plunger tip against the opening of the orifice.