Surge relief valve

Details Surge relief valve Surge relief valve

1992-10-16

1993-07-13

Nilson, Robert G.

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

251 615, 251127, 251282, G05D 1610

Patent

active

052264440

ABSTRACT:
A surge relief valve suitable for high pressure application, for example in a crude oil pumped pipeline. The valve has a plug movable to expose different areas of an energy-absorbing cage trim to fluid flow. The plug position is controlled by a control device proportionately responsive to changes in upstream fluid pressure. The valve requires no external power for its actuation.

REFERENCES:
patent: 3331583 (1967-07-01), Baker
patent: 3514074 (1970-05-01), Self
patent: 4127146 (1978-11-01), Self
patent: 4167262 (1979-11-01), Lemmon
patent: 4172466 (1979-10-01), Pattarini
patent: 4267045 (1981-05-01), Hoof
patent: 4356843 (1982-11-01), Baumann
patent: 4397331 (1983-08-01), Medlar

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