An English version paper about the introduction of GATE VALVE, better it's a academic one. actually this is special for a guy of my colleague's younger brother as reference.
Try to get your hands on a copy of The Valve Primer
by Brent Stojkov.This book is an excellent introduction to all types of valves including gate valves.
The ubiquitous gate valve has a long history of serving the flow control industry in the United States. From its humble beginnings during the middle of the 19th century, to its universal usage today, the gate valve has soldiered on behind the scenes of America