Pulsation dampener

Details Pulsation dampener Pulsation dampener

1998-04-02

1999-01-19

Brinson, Patrick F.

Pipes and tubular conduits

With pressure compensators

Variable capacity chambers

138 42, 138 26, F16L 5504

Patent

active

058604529

ABSTRACT:
A pulsation dampener or desurger for use in sterile or other high-temperature applications such as food- or pharmaceutical-processing plants has an outer case surrounding a concentric perforated mandrel. Flanges or other connectors provide for attachment to a piping system so that product flows through the mandrel. Enclosing the mandrel is a liner of polytetrafluoroethylene or other fluoropolymer; the liner in turn is enclosed by a resilient sheath which may be integral with the liner. Between the liner and the mandrel is a pressure chamber which fluctuates in volume responsive to surges in line pressure, dampening the amplitude of the surges. Expansion of liner and sheath is limited by pressure within a gas chamber in the region between sheath and case.

REFERENCES:
patent: 3063470 (1962-11-01), Forster
patent: 4705077 (1987-11-01), Sugimura
patent: 4732176 (1988-03-01), Sugimura
patent: 4759387 (1988-07-01), Arendt
patent: 4979441 (1990-12-01), Welch et al.
patent: 5735313 (1998-04-01), Jenski, Jr. et al.

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