公开(公告)号：US3729018A

公开(公告)日：1973-04-24

申请号：US3729018D

申请日：1971-07-06

Applicant: SPRAYING SYSTEMS CO

Inventor： BUTTERFIELD T

IPC: F16K17/08 ,  F16K17/20

CPC classification number: F16K17/082 ,  Y10T137/7738 ,  Y10T137/7788 ,  Y10T137/88054

Abstract: An unloader type valve for spray guns supplied from pumps to limit operating pressures of the pump when the spray gun is stopped. The valve utilizes an adjustable spring to select pressure forces for opening the valve and a variable flow passage from the valve to an outlet when the valve is open, the allowing matching of the valve to the precise operating pressures and flow rates in spray gun and pumping system installations.

Abstract translation: 用于喷枪从喷枪提供的卸载式阀，以限制喷枪停止时泵的工作压力。 阀门利用可调弹簧来选择打开阀门的压力和当阀门打开时从阀门到出口的可变流动通道，允许阀门匹配喷枪和泵送中的精确操作压力和流量 系统安装。