Pressure-reducing system for pipeline

Excerpts from Newspapers and Magazines

Pressure-reducing system for pipeline

Journal of the Japanese Association for the Study of Irrigation, Drainage and Reclamation Engineering
No.108, published on Apr. 1, 1997

Pressure-reducing system for pipeline

Reprinted by permission of the Japanese Association for the Study of Irrigation, Drainage and Reclamation Engineering

Pressure-reducing system for pipeline

	Masaki Saito		Crown Engineering Co., Ltd.
	Yoshihiro Terakawa		Same as above
	Noriaki Tsunoda		Same as above
	Hitone Inagaki		Same as above

Abstract (English translation of the original text)
The following is an introduction to a low pressurization system for agricultural irrigation based on the safe use of polyvinyl chloride piping at the terminal side of the pipeline.
The combination of "the cut off of hydrostatic pressure using conventional or new type automatic pressure reducing valves" and "the countermeasures for water hammer pressure with airbags or safety valves" is proposed as a pipeline pressure reduction system.
Furthermore, an inline pressure reduction system that reduces systematic internal pressure in phases through a serial arrangement of new type automatic pressure reducing valves is offered.

For details of this new type automatic pressure reducing valve, please refer to
Constant Pressure Valve (pressure reducing valve) UFSP type
Constant Pressure Valve (pressure reducing valve with over-discharge cutoff function) UFSP-C type.