| 摘要 |
#CMT# #/CMT# The valve has a piston (13) sliding in a delaying chamber (11f) and carrying a main flap. A control rod (5) axially slides in a head body (6), and has a lower end carrying an auxiliary flap (9). A radial channel (6d) is arranged in the body downstream of an auxiliary seat (6a) to allow free flow of a fluid to an outlet orifice (1a) of the valve when the auxiliary flap is opened. Each of radial orifices (11d) is closed by an automatic flow regulator to maintain a counter-pressure upstream of a main seat (11a) to cause a maximal lift of the piston in the chamber even in case of low pressure. #CMT# : #/CMT# The flow regulator is constituted of a star tube made of plastic material, and a seal made of elastomer. #CMT#USE : #/CMT# Flexible trigger delayed valve for delivering a fluid i.e. water, to a sanitary appliance. #CMT#ADVANTAGE : #/CMT# The radial orifices are closed by the automatic flow regulator to maintain the counter-pressure upstream of the main seat to cause the maximal lift of the piston in the chamber even in case of low pressure, thus obtaining a quasi-constant volume of delivered water at each cycle, irrespective of the pressure. The regulator causes a complete lift of the piston even in case of low pressure, thus ensuring a constant delay, irrespective of pressure variations. The regulator limits the fluid flow based on the needs of a user. The valve is compact, is inexpensive, and ensures direct passage of fluid from upstream to downstream in the valve body. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a longitudinal sectional view of a flexible trigger delayed valve in closed position. 1 : Valve body 1a : Outlet orifice 5 : Control rod 6 : Head body 6a : Auxiliary seat 6d : Radial channel 9 : Auxiliary flap 11a : Main seat 11d : Radial orifices 11f : Delaying chamber 13 : Piston 15 : Lip seal. |
